1978 Cadillac Seville Transmission Parts
Choose your Part Name for your 1978 Cadillac Seville
Automatic Transmission Dipstick
Automatic Transmission Extension Housing Seal
Automatic Transmission Flexplate
Automatic Transmission Kickdown
Automatic Transmission Kickdown Solenoid Switch
Automatic Transmission Lock-Up Torque Converter Control
Automatic Transmission Manual Shaft Seal
Automatic Transmission Mount
Automatic Transmission Oil Pump Seal
Automatic Transmission Shift Kit
Automatic Transmission Shift Lever
Automatic Transmission Shift Lever Kit
Automatic Transmission Shifter Cable Bracket
Automatic Transmission Torque Converter
Automatic Transmission Vacuum Modulator
Manual Transmission Mount
Transmission Filter Kit
Transmission Oil Pan
Transmission Oil Pan Gasket
Image
Product
Price
- Firewall Mount; Brite Finish
- Anchor Tight Locking Flexible Transmission Dipstick; TH-350/400 Firewall Mount; Brite Finish;
- Anchor Tight Locking Flexible Transmission Dipstick
- Product Attributes:
- WARNING CA Proposition 65: Yes
- WARNING CA Proposition 65 Message: Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov.
- Trans Model:
- Gm- Th350 (auto) 3 Speed
- Gm- Th400 (auto) 3 Speed
-
Features:
- No Filler Tube Needed
- Eliminates Expulsion Of Dipstick Handle
- Bolted In Sealed Pan Fitting
- Accepts Standard Transmission Funnels
- Made From 6061 Aluminum
- No Pan Fitting Leaks During Storage
- Flexible Inner Dipstick Measuring Cable
- Teflon-Lined Stainless Braided Outer Housing
- Made In The U.S.A.
- Lifetime Warranty
- No filter tube needed. The locking mechanism eliminates expulsion of the dipstick handle under trans pressure. Bolted in sealed pan fitting. Large filter tube accepts standard transmission funnels. Made from 6061 aluminum and features Teflon lined stainless braided outer housing. Flexible inner dipstick measuring cable. No pan fitting leaks during storage. Dipsticks are available with firewall mount or transmount mounting bracket. The transmission and firewall mounts are supplied with transmission storage plug for quick change and storage. Spare transmission fittings are available for quick transmission changes. Available for most GM, Ford and Chrysler transmissions. Available in brite or black.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | Transmission Manuf. Code | CID |
|---|---|---|---|---|---|
| 1978 - Cadillac Seville | V | - | 8 Cyl 5.7L | THM400 | 350 |
- 1900 - 2100 RPM Stall; Requires 10.75 in. Bolt Circle/Dual Pattern Flexplate Req. 10.75 in. Bolt Circle Or Dual Pattern Flexplate
- Tork Master 2000 Torque Converter; 1900 - 2100 RPM Stall; Requires 10.75 in. Bolt Circle/Dual Pattern Flexplate;
- Tork Master 2000 Torque Converter
- Product Attributes:
- Trans Year:
- 1965
- 1966
- 1967
- 1968
- 1969
- 1970
- 1971
- 1972
- 1973
- 1974
- 1975
- 1976
- 1977
- 1978
- 1979
- 1980
- 1981
- 1982
- 1983
- 1984
- 1985
- 1986
- 1987
- 1988
- 1989
- 1990
- 1991
- Automotive Item Grade: High Performance
- WARNING CA Proposition 65: No
- Bolt Circle Diameter: 10.750 In.
- Flexplate Change Needed: Yes
- Stall Speed (RPM): 1900-2100
- Furnace-Brazed: Yes
- Trans Model:
- Gm- Th350 (auto) 3 Speed
- Gm- Th375 (auto) 3 Speed
- Gm- Th375b (auto) 3 Speed
- Gm- Th400 (auto) 3 Speed
- Gm- Th425 (auto) 3 Speed
- Trans Year:
-
Features:
- New Precision Pump Drive Tube
- Pressure Tested
- Fully Balanced
- Needle Thrust Bearing
- New Thrust Washer
- Washer Between Turbine and Cover
- This Tork Master 2000 fits 1965-91 GM TH400, 425, 375 and 1968-81 GM TH350, 375B (not 350C.) Dont let the exceptional value fool you into thinking Tork Master Converters are not packed with lots of quality features which make them the best value-priced street performance converters money can buy. These converters perform best when paired with stock to modified engines up to 350hp/350 ft lbs. of torque, and lighter weight applications, like street rods. The Tork Master will provide noticeably quicker launches and harder acceleration while maintaining normal daily driving qualities. Upgrades like a new precision alloy steel pump drive tube, needle thrust bearing when factory equipped, new thrust washer between turbine and cover when required, and pressure tested and fully balanced by expertly trained technicians. Notes: Higher stall converters can generate more heat, so we highly recommend adding a transmission cooler. Notes: Not recommended for big block, supercharged, plate-type nitrous oxide or trans-brake applications. The product images shown are for illustration purposes only and may not be an exact representation of the product. Has 10.75-inch bolt circle
Additional Fitment Information:
| Vehicle | Block | CC | Engine | Transmission Manuf. Code | CID |
|---|---|---|---|---|---|
| 1978 - Cadillac Seville | V | - | 8 Cyl 5.7L | THM400 | 350 |
- 2800 - 3200 RPM Stall
- Tork Master 3000 Torque Converter; 2800 - 3200 RPM Stall;
- Tork Master 3000 Torque Converter
- Product Attributes:
- Trans Year:
- 1965
- 1966
- 1967
- 1968
- 1969
- 1970
- 1971
- 1972
- 1973
- 1974
- 1975
- 1976
- 1977
- 1978
- 1979
- 1980
- 1981
- 1982
- 1983
- 1984
- 1985
- 1986
- 1987
- 1988
- 1989
- 1990
- 1991
- Automotive Item Grade: High Performance
- WARNING CA Proposition 65: No
- Bolt Circle Diameter: 10.750 In.
- Flexplate Change Needed: Yes
- Stall Speed (RPM): 2800-3200
- Furnace-Brazed: Yes
- Trans Model:
- Gm- Th350 (auto) 3 Speed
- Gm- Th375 (auto) 3 Speed
- Gm- Th375b (auto) 3 Speed
- Gm- Th400 (auto) 3 Speed
- Gm- Th425 (auto) 3 Speed
- Trans Year:
-
Features:
- New Precision Pump Drive Tube
- Pressure Tested
- Fully Balanced
- Needle Thrust Bearing
- New Thrust Washer
- Washer Between Turbine and Cover
- The Tork Master 3000 fits 1965-91 GM TH400, 425, 375 and 1968-81 GM TH350, 375B (not 350C) transmissions. Dont let the exceptional value fool you into thinking Tork Master Converters are not packed with lots of quality features, making them the best value-priced street performance converters money can buy. These converters perform best when paired with stock to modified engines up to 350hp/350 ft lbs. of torque, and lighter weight applications, like street rods. The Tork Master will provide noticeably quicker launches and harder acceleration while maintaining normal daily driving qualities. Upgrades like a new precision alloy steel pump drive tube, needle thrust bearing when factory equipped, new thrust washer between turbine and cover when required, and pressure tested and fully balanced by expertly trained technicians. Notes: Higher stall converters can generate more heat, so we highly recommend adding a transmission cooler. Not recommended for big block, supercharged, plate-type nitrous oxide or trans-brake applications. The product images shown are for illustration purposes only and may not be an exact representation of the product. 10.75-inch bolt circle
Additional Fitment Information:
| Vehicle | Block | CC | Engine | Transmission Manuf. Code | CID |
|---|---|---|---|---|---|
| 1978 - Cadillac Seville | V | - | 8 Cyl 5.7L | THM400 | 350 |
- 2300 - 2500 RPM Stall; Requires 10.75 in. Bolt Circle/Dual Pattern Flexplate Req. 10.75 in. Bolt Circle Or Dual Pattern Flexplate
- Holeshot 2400 Torque Converter; 2300 - 2500 RPM Stall; Requires 10.75 in. Bolt Circle/Dual Pattern Flexplate;
- Holeshot 2400 Torque Converter
- Product Attributes:
- Trans Year:
- 1965
- 1966
- 1967
- 1968
- 1969
- 1970
- 1971
- 1972
- 1973
- 1974
- 1975
- 1976
- 1977
- 1978
- 1979
- 1980
- 1981
- 1982
- 1983
- 1984
- 1985
- 1986
- 1987
- 1988
- 1989
- 1990
- 1991
- Automotive Item Grade: High Performance
- WARNING CA Proposition 65: No
- Bolt Circle Diameter: 10.750 In.
- Flexplate Change Needed: Yes
- Stall Speed (RPM): 2300-2500
- Furnace-Brazed: Yes
- Trans Model:
- Gm- Th350 (auto) 3 Speed
- Gm- Th375 (auto) 3 Speed
- Gm- Th375b (auto) 3 Speed
- Gm- Th400 (auto) 3 Speed
- Gm- Th425 (auto) 3 Speed
- Trans Year:
-
Features:
- Furnace Brazed Impeller
- Steel Alloy Pump Drive Tube
- Heavy Duty Needle Bearing
- Between Stator and Turbine
- Furnace Brazed Turbine
- New Turbine Hub
- New Springs/Rollers In Stator
- HoleShot 2400 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) are for serious-minded performance enthusiasts and offer additional strength and durability features not found in our Tork Master or Traveler series of converters. The Holeshot converter is an excellent choice for vehicles with some performance engine modifications, particularly big cams that tend to reduce low-end power and torque. The higher stall speed of this converter will launch the car in a higher rpm range where more torque is readily available, resulting in quicker acceleration. Holeshot converters feature furnace brazed impeller fins and turbine, new precision alloy impeller hub and new heavy duty needle bearings. Other features include fully balanced and pressure tested by expert technicians. If your vehicle is equipped with a plate type nitrous system or supercharger, please refer to the Nitrous Holeshot line of converters. Notes: Stall speed listings are based on engines producing 230lb. ft. of torque at 2,500 rpm. More torque at 2,500 rpm will give you more stall speed, less torque at 2,500 rpm will give you less stall speed than the stall speed ratings indicated. Higher stall converters can generate more heat, so we highly recommend adding a transmission cooler. This converter is Not recommended for supercharged, plate-type nitrous oxide or trans-brake applications. The product images shown are for illustration purposes only and may not be an exact representation of the product. 10.75-inch bolt circle.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | Transmission Manuf. Code | CID |
|---|---|---|---|---|---|
| 1978 - Cadillac Seville | V | - | 8 Cyl 5.7L | THM400 | 350 |
- 2300 - 2500 RPM Stall
- Tork Master 2400 Torque Converter; 2300 - 2500 RPM Stall;
- Tork Master 2400 Torque Converter
- Product Attributes:
- Trans Year:
- 1965
- 1966
- 1967
- 1968
- 1969
- 1970
- 1971
- 1972
- 1973
- 1974
- 1975
- 1976
- 1977
- 1978
- 1979
- 1980
- 1981
- 1982
- 1983
- 1984
- 1985
- 1986
- 1987
- 1988
- 1989
- 1990
- 1991
- Automotive Item Grade: High Performance
- WARNING CA Proposition 65: No
- Bolt Circle Diameter: 10.750 In.
- Flexplate Change Needed: Yes
- Stall Speed (RPM): 2300-2500
- Furnace-Brazed: Yes
- Trans Model:
- Gm- Th350 (auto) 3 Speed
- Gm- Th375 (auto) 3 Speed
- Gm- Th375b (auto) 3 Speed
- Gm- Th400 (auto) 3 Speed
- Gm- Th425 (auto) 3 Speed
- Trans Year:
-
Features:
- New Precision Pump Drive Tube
- Pressure Tested
- Fully Balanced
- Needle Thrust Bearing
- New Thrust Washer
- Washer Between Turbine and Cover
- The Tork Master 2400 fits 1965-91 GM TH400, 425, 375 and 1968-81 GM TH350, 375B (not 350C.) Dont let the exceptional value fool you into thinking Tork Master Converters are not packed with lots of quality features, making them the best value-priced street performance converters money can buy. These converters perform best when paired with stock to modified engines up to 350hp/350 ft lbs. of torque, and lighter weight applications, like street rods. The Tork Master will provide noticeably quicker launches and harder acceleration while maintaining normal daily driving qualities. Upgrades like a new precision alloy steel pump drive tube, needle thrust bearing when factory equipped, new thrust washer between turbine and cover when required, and pressure tested and fully balanced by expertly trained technicians. Notes: Higher stall converters can generate more heat, so we highly recommend adding a transmission cooler. Not recommended for big block, supercharged, plate-type nitrous oxide or trans-brake applications. The product images shown are for illustration purposes only and may not be an exact representation of the product. 10.75-inch bolt circle
Additional Fitment Information:
| Vehicle | Block | CC | Engine | Transmission Manuf. Code | CID |
|---|---|---|---|---|---|
| 1978 - Cadillac Seville | V | - | 8 Cyl 5.7L | THM400 | 350 |
- 2900 - 3200 RPM Stall; w/1.71 in. Crank Pilot
- Holeshot 3200 Torque Converter; 2900 - 3200 RPM Stall; w/1.71 in. Crank Pilot;
- Holeshot 3200 Torque Converter
- Product Attributes:
- Crank Pilot Diameter: 1.710 In.
- Automotive Item Grade: High Performance
- Package Contents: Torque Converter, Mounting Hardware
- WARNING CA Proposition 65: No
- Bolt Circle Diameter: 10.750 In./11.500 In.
- Anti Balloon Plate: No
- Mounting Stud: No
- Torque Converter Series: Holeshot
- Lock Up Type: No
- Transmission Model: Th350
- Stall Speed (RPM): 2900-3200
- Trans Model:
- Gm- Th350 (auto) 3 Speed
- Gm- Th375 (auto) 3 Speed
- Gm- Th400 (auto) 3 Speed
- Gm- Th425 (auto) 3 Speed
-
Features:
- Furnace Brazed Impeller
- Steel Alloy Pump Drive Tube
- Heavy Duty Needle Bearing
- Between Stator and Turbine
- Furnace Brazed Turbine
- New Turbine Hub
- New Springs/Rollers In Stator
- This Holeshot 3200 fits 1965-91 GM TH400, 425, 375 and 1968-81 TH350, 375B (not 350C) transmissions. Holeshot torque converters are for serious-minded performance enthusiasts and offer additional strength and durability features not found in our Tork Master or Traveler series of converters. The Holeshot 2400 converter is an excellent choice for vehicles with some performance engine modifications, particularly big cams that tend to reduce low-end power and torque. The higher stall speed of this converter will launch the car in a higher rpm range where more torque is readily available, resulting in quicker acceleration. Holeshot converters feature furnace brazed impeller fins and turbine, new precision alloy impeller hub and new heavy duty needle bearings. If your vehicle is equipped with a plate type nitrous system or supercharger, please refer to the Nitrous Holeshot line of torque converters.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | Transmission Manuf. Code | CID |
|---|---|---|---|---|---|
| 1978 - Cadillac Seville | V | - | 8 Cyl 5.7L | THM400 | 350 |
- StarShifter Automatic Shifter
- For GM TH400,350,250,200 Ford C4 and C6, Mopar 727 and 904
- StarShifter Automatic Shifter; Detent Ratchet Combo 3-Speed; Floor; Fits w/TH400/TH350/250/200/C4/C5/C6/AOD/1966 And Later A727/A904/A518 Transmissions;
- Product Attributes:
- Automotive Item Grade: High Performance
- Backup Light Switch: Yes
- California Proposition 65 Chemical Name 4: Alprazolam
- California Proposition 65 Chemical Name 3: Acetochlor
- Cover Included: Yes
- California Proposition 65 Chemical Name 2: Abiraterone Acetate
- Shift Lever Length: 12.120 In.
- California Proposition 65 Chemical Name 1: A-alpha-c (2-amino-9h-pyrido[2,3-b]indole)
- Mechanism: Dual
- Package Contents: Shifter Assembly, Retaining Ring, Washers, T-handle, Cover Plate, Trigger Spring
- WARNING CA Proposition 65: No
- Neutral Safety Switch Included: Yes
- Indicator Light Included: No
- NHRA Accepted: Yes
- Cable Included: Yes
- Trans Model:
- Chrysler- Torqueflite A727 (auto) 3 Speed
- Chrysler- Torqueflite A904 (auto) 3 Speed
- Ford- C- 4 (auto) 3 Speed
- Ford- C- 6 (auto) 3 Speed
- Gm- Th200 (auto) 3 Speed
- Gm- Th250 (auto) 3 Speed
- Gm- Th350 (auto) 3 Speed
- Gm- Th400 (auto) 3 Speed
-
Features:
- Base Trims For Custom Fit
- Cable Operated
- Quick Installation
- Accurate Shifting
- NHRA/IHRA Reverse Lockout Meets Requirements
- Includes Neutral Safety Switch
- Polished Aluminum. T-Handle and Cable
- The B&M StarShifter is our 3-speed shifter with a split personality of performance, function, and that classic muscle car styling. The first personality is as a straight-line detent shifter, meaning you can move between gears without a positive stop, like an OEM shifter. The racing personality comes into play when you want a ratcheting function, you just put the shifter down into low gear, pull the trigger up while pulling the shift handle down and it drops into ratchet mode. In this mode, the ratchet function will shift one gear at a time so you cant over-shift and miss a gear at that critical moment. Another cool feature is the reverse lockout which meets NHRA/IHRA safety rules for those weekend grudge races at the track. The look and feel of the T-handle and accordion-style shift boot really shows off the racing heritage of the StarShifter and looks a lot like its big brother, the MegaShifter. Other features include a black console that you can trim to fit your vehicles floor contour for a perfect fit, a 5-foot shift cable, cable brackets, transmission shift levers, chrome-plated top plate, and everything needed for an easy at home installation. Be sure to check out our optional T-handle with a 12-volt button for actuating a trans-brake, nitrous oxide, or other accessories for the hard-core performance enthusiast. This shifter fits most popular Chrysler A727, A904, A518 transmissions, Ford C4, C5, C6, and AOD transmissions, along with GM 3-speed automatic transmissions. Note: AOD transmissions require optional kit #40496. Overall Dimensions - 12.22L x 6.25W x 12.12H
Additional Fitment Information:
| Vehicle | Transmission | Trans. Speed | Transmission Manuf. Code |
|---|---|---|---|
| 1978 - Cadillac Seville | Automatic | 3 | THM200/M29 |
- Automatic Transmission Gasket
- FEL-PRO TOS 18621 Automatic Transmission Gasket
- Product Attributes:
- Bolt Hole Quantity: 13
- Configuration: One Piece
- Length: 16.375
- Fel-Pro® gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust
This Part Fits the Following OEM/Substitute Numbers:
30152, 7432511, 749020-PO, 76-3010, 8130227, 8623266, 8626931, 8626998, 8629807, 8655625, GB12736, T3204, T6197H, W39341, W39341TC
Additional Fitment Information:
| Vehicle | Transmission | Trans. Speed | Transmission Manuf. Code |
|---|---|---|---|
| 1978 - Cadillac Seville | Automatic | 3 | THM400 |
- Deep; Includes Drain Plug/Mounting Hardware; Adds An Additional 2 qts.
- Transmission Oil Pan; Deep; Includes Drain Plug/Mounting Hardware; Adds An Additional 2 qts.;
- Transmission Oil Pan
- Product Attributes:
- Instructions Included: Yes
- California Proposition 65 Chemical Name 1: Chromium (hexavalent Compounds)
- Mounting Hardware Included: Yes
- Package Contents: Transmission Pan, Pan Gasket, Drain Plug With Seal, Filter Extension, O-rings, Filter Extension Screws, Nuts, Bolts, Washers And Instructions
- WARNING CA Proposition 65: No
- Style: Deep
- Filter Extension Included: Yes
- Drain Plug Kit: Yes
- Additional Fluid Capacity: 2 Qt.
- Temperature Sensor Bung: Yes
- Drain Plug Included: Yes
- Trans Model: Gm- Th400 (auto) 3 Speed
-
Features:
- Additional Oil Capacity
- More Cooling Ability
- No Dipstick Modification
- Some Include Fluid Pickup Extension
- Built-In Drain Plugs
- Cast Aluminum
- Our Hi-Tek deep transmission pans are constructed from A356-T6 aluminum and are cast with thick internal and external fins, adding additional strength and increased cooling properties. The deep pan design increases fluid capacity by 2-quarts over the stock O.E. steel pan. All these features combined help dissipate heat quicker netting lower transmission and fluid temperatures prolonging the life of your transmission, transmission fluid and corresponding components. Other features for this popular pan include a filter extension, pan gasket and drain port with magnetic drain plug for clean and easy servicing. Also includes a 1/8 inch NPT temperature sensor port for easily adding a temp gauge for monitoring transmission temperatures while daily driving, towing or racing. Includes detailed instructions with all necessary hardware for an easy at home installation.
Additional Fitment Information:
| Vehicle | Transmission Manuf. Code |
|---|---|
| 1978 - Cadillac Seville | THM400 |
- Standard SFI; Internal Balance; 168 Tooth; 10.75 in. and 11.5 in. Bolt Circle
- Automatic Transmission Flexplate; Standard SFI; Internal Balance; 168 Tooth; 10.75 in. and 11.5 in. Bolt Circle;
- Automatic Transmission Flexplate
- Product Attributes:
- California Proposition 65 Chemical Name 1: Cadmium And Cadmium Compounds
- WARNING CA Proposition 65: No
- SFI Certification Sticker: Included
- SFI Approved: Yes
- Crankshaft Bolt Hole Quantity: 6
- Dual Pattern: No
- Item Weight: 7.000 Lbs.
- Balance: Internal
- NHRA Accepted: Yes
- Outside Diameter: 14.100 In.
- IHRA Legal: Yes
- Timing Marks: 168
-
Features:
- NHRA/IHRA Legal For All Classes
- Includes SFI Certification Sticker
- Ideal For Street Applications
- To Extreme Duty Racing
- To High RPM Use
- As performance levels increase, an O.E. style flexplate just wont cut it and a stronger option is a necessity to prevent transmission and/or converter failure. B&M has you covered with our high performance SFI approved flexplate designed for 1955-1985 GM small block (internally balanced) V8 engines along with 4.3L V6 engines. Also fits 1965-up GM big block (internally balanced) V8 engines with two piece rear main seal. Features include high tensile strength steel construction to resist elongation and cracking, dual bolt pattern 10.75 or 11.5 inch converter mounting locations, 168 tooth ring gear with double-sided welds for added strength and comes with SFI 29.1 safety certification insuring the ultimate in safety and performance. The assembly is then Zinc plated and treated with a Chromate Conversion Coating for added corrosion resistance and durability. B&M SFI approved flexplates are ideal for extreme duty race applications as well as street cars, tow vehicles or other vehicles needing the added protection and toughness that B&M has been delivering since 1953.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | Transmission Manuf. Code | CID |
|---|---|---|---|---|---|
| 1978 - Cadillac Seville | V | - | 8 Cyl 5.7L | THM400 | 350 |
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