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- Grease/Oil Seal
- 8.25 in., 9.25 in. Ring Gear
- Vent holes allow lubricants to flow freely around the seal lip - cooling seal components and removing heat build-up
Additional Fitment Information:
| Vehicle | Position | Drive Type |
|---|---|---|
| 1999 - GMC K2500 | Front | 4WD |
- Differential Pinion Seal
- with 9.5 (in) Ring Gear with AAM Axle
- National 710507 Differential Pinion Seal
- Product Attributes:
- Flanged Outside Diameter (MM): 84.050
- Inside Diameter:
- 2.088
- 53.040
- Shaft (Inch): 2.088
- Width (Inch): 0.500
- Unit of Dimension: Inch
- Housing Bore (Inch): 2.911
- Outside Diameter:
- 2.915
- 74.040
- Outside Diameter (Inch): 2.915
- Shaft (MM): 53.040
- Part Description: Oil Seal
- Flanged Outside Diameter (Inch): 3.309
- National® has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.
This Part Fits the Following OEM/Substitute Numbers:
20880, 26064029, 710507, YMS710507
Additional Fitment Information:
| Vehicle | Position |
|---|---|
| 1999 - GMC K2500 | Rear Outer |
- Differential Pinion Seal
- with 10.5 (in) Ring Gear with AAM Axle
- National 710508 Differential Pinion Seal
- Product Attributes:
- Shaft (Inch): 2.324
- Width (Inch): 0.591
- Overall Width with Side Lip (Inch): 0.606
- Overall Width with Side Lip (MM): 15.392
- Flanged Outside Diameter (Inch): 4.018
- Inside Diameter:
- 2.324
- 59.030
- Flanged Outside Diameter (MM): 102.060
- Helix Type: Clockwise-spiral Lip Design
- Unit of Dimension: Inch
- Housing Bore (Inch): 3.541
- Outside Diameter:
- 3.546
- 90.070
- Outside Diameter (Inch): 3.546
- Shaft (MM): 59.030
- Part Description: Oil Seal
- National® has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.
This Part Fits the Following OEM/Substitute Numbers:
05086789AA, 23244, 26064030, 5086789, 5086789AA, 710508, YMS710508
Additional Fitment Information:
| Vehicle | Position |
|---|---|
| 1999 - GMC K2500 | Rear Outer |
- This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
- 10.50" Ring Gear
Additional Fitment Information:
| Vehicle | Position | Body |
|---|---|---|
| 1999 - GMC K2500 | Rear | Crew Cab Pickup |
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