This example from a well-known San Antonio differential shop highlights what should never be done. It’s shocking and unsafe that a customer was charged for such subpar work and advised to use it on their vehicle. This is a clear case of poor craftsmanship.
Pinion Yokes
Driveshaft Specialist has New Pinion Yokes for most vehicles. All of listings are shown down the page.
Pinion Yoke Types
General Information
This pinion yoke does not have tabs. The C-Clips that go on the U-Joint cap actually center and lock the U-Joint in place. You MUST use clips or this U-Joint will come out.
This pinion yoke with tabs is used with a outside lock regular U-Joint. The tabs center and lock the U-Joint in place.
Cautionary Example of Poor Workmanship
Pinion Yoke Maintenance
- Replacement Needed: If the tabs on your pinion yoke are broken or worn, replace the pinion yoke immediately.
- Wear and Tear: Worn tabs can cause side-to-side movement of the U-joint, even with a high-quality U-joint. This wear can lead to high-speed vibrations (50-70+ mph).
- Prevent Further Damage: A vibrating driveshaft accelerates wear on the tabs, so addressing the issue promptly is crucial.
Measuring Pinion Yokes:
Getting accurate dimensions on pinion yokes is critical. A dial or digital caliper is recommended. We can go by Differential type but checking all dimensions is the best. Attached are 2 sheets that outline the different measurements needed. With those measurements you can compare on the listings below.
Download PDF
AAM American Axle (Dodge & GM)
| Diff Type | UJ Series |
Part Code |
Series # |
Spline Dia. |
Grnd Hub Seal Dia. |
Length Thru Hole |
Centerline to End |
Ring Bplts |
Hardware Kit |
Notes |
|---|---|---|---|---|---|---|---|---|---|---|
| 7.5 | 3RL | 75G.3R | 27 | 1.188 | 1.692 | 1.475 | 3.575 | 10B | BS | Seal |
| 10B-8.5 | 3RL | 85.3R | 30 | 1.312 | 1.938 | 1.150 | 3.575 | 10B | BS | Inside Lock UJ |
| 10B-8.6 | 3RL | 86-3R | 30 | 1.312 | 2.110 | 1.150 | 3.575 | 10B | BS | Later Model |
| 10B-8.6 | 1350 | AAM1350 | 30 | 1.315 | 2.113 | 1.145 | 3.354 | |||
| 10B-8.6 | 1410 | AAM95-C1410 | 30 | 1.315 | 2.113 | 1.145 | 3.354 | |||
| 9.25-IFS | 3RL | 925-3RL | 30 | 1.312 | 1.938 | 1.150 | 3.375 | 12B | BS | |
| 9.5 | 1350 | AAM1350 | 30 | 1.315 | 2.113 | 1.145 | 3.354 | |||
| 9.5 | 1350 | AA95.1450.1 | 32 | 1.400 | 2.113 | 1.187 | 3.375 | 12 | BS | Late Models |
| 9.5 | 1410 | AAM95-C1410 | 30 | 1.315 | 2.113 | 1.145 | 3.354 | |||
| 10.5 | 1410 | AAM105-C1410 | 30 | 1.588 | 2.369 | 1.655 | 3.994 | |||
| 11.5 | 1480 | AAM115-C1480 | 30 | 1.588 | 2.369 | 1.655 | 3.905 | |||
| 9.25 | Flange | AAM-9.25 | 30 | 1.315 | 2.113 | 1.154 | 3.135 | SErrated Flange | ||
| 10.5 | Flange | AAM-D | 30 | 1.588 | 2.369 | 1.655 | 2.5055 | |||
| 11.5 | Flange | AAM-D | 30 | 1.588 | 2.369 | 1.655 | 2.505 | |||
| 10.5 | 1350 | 32 | 0 | 0.000 | 0.000 | 0.000 |
General Motors
| Diff Type | UJ Series |
Part Code |
Series # |
Spline Dia. |
Grnd Hub Seal Dia. |
Length Thru Hole |
Centerline to End |
Ring Bplts |
Hardware Kit |
Notes |
|---|---|---|---|---|---|---|---|---|---|---|
| 7.5 | 3RL | 75G-3R | 27 | 1.188 | 1.692 | 1.475 | 3.575 | 10B | BS | Seal# 710474 |
| 7.5 | 1350 | 75G-1350 | 27 | 1.188 | 1.692 | 1.475 | 3.575 | 10B | BS | |
| 8.2 | 1310 | 82-17-10 | 17 | 1.310 | 1.739 | 1.181 | 2.595 10B | 10B | UB | |
| 8.2 | 1310 | 82.25.10 | 25 | 1.0825 | 1.521 | 1.500 | 2.875 | 10B | UB | |
| 8.2 | 3RL | 82-3R | 27 | 1.188 | 1.942 | 1.287 | 2.866 | 10B | UB | |
| IRS-Vette | 1310 | IRS.10 | 30 | 1.328 | 1.740 | 1.190 | 2.590 | 10B | UB | |
| 10B-8.5 | 1310 | 85-10 | 30 | 1.312 | 1.938 | 1.150 | 3.169 | 10B | UB | |
| 10B-8.5 | 3RL | 85-3R | 30 | 1.312 | 1.938 | 1.150 | 3.375 | 10B | BS | Inside Lock UJ |
| 10B-8.5 | 1350 | 85-13500E | 30 | 1.312 | 1.938 | 1.150 | 3.175 | 10B | BS | |
| 10B-8.6 | 3RL | 86-3R | 30 | 1.312 | 2.110 | 1.150 | 3.375 | 10B | BS | Later Model |
| 10B-8.6 | 1350 | AAM1350 | 30 | 1.315 | 2.113 | 1.145 | 3.354 | |||
| 10B-8.6 | 1410 | AAM95.C1410 | 30 | 1.315 | 2.113 | 1.145 | 3.354 | |||
| 12B-8.875 | 1310 | 8875-10 | 30 | 1.328 | 1.739 | 1.172 | 2.860 | 12B | BS | OEM Type |
| 12B-8.875 | 1330 | 8875-30 | 30 | 1.328 | 1.739 | 1.190 | 2.593 | 12B | UB | |
| GM-12B | 1350 | 12-50P | 30 | 1.328 | 1.739 | 1.172 | 3.375 | 12B | UB | NEW |
| 9.25-IFS | 3RL | 925-3RL | 30 | 1.312 | 1.938 | 1.150 | 3.375 | 12B | BS | |
| 9.25-IFS | 1350 | 925.50 | 30 | 1.312 | 1.938 | 1.150 | 3.125 | 12B | BS | |
| 9.5 | 1350 | 95.1350 | 30 | 1.312 | 1.938 | 1.150 | 3.125 | 12B | BS | |
| 9.5 | 1350 | AAM1350 | 30 | 1.315 | 2.113 | 1.145 | 3.354 | |||
| 9.5 | 1410 | AAM95-C1410 | 30 | 1.315 | 2.113 | 1.145 | 3.354 | |||
| 10.5 | 1350 | 1025-1350 | 30 | 1.575 | 2.200 | 1.642 | 3.913 | 14B | BS | |
| 10.5 | 1410 | 1025.1410 | 30 | 1.575 | 2.369 | 1.655 | 3.913 | 14B | BS | |
| 10.5 | 1410 | AAM105-C1410 | 30 | 1.588 | 2.369 | 1.655 | 3.994 | |||
| 11.5 | 1480 | AAM115-C1480 | 30 | 1.588 | 2.369 | 1.655 | 3.905 | No Counterweight |
Ford Products
| Diff Type | UJ Series |
Part Code |
Series # |
Spline Dia. |
Grnd Hub Seal Dia. |
Length Thru Hole |
Centerline to End |
Ring Bplts |
Hardware Kit |
Notes |
|---|---|---|---|---|---|---|---|---|---|---|
| 7.5 | 1310 | 75F-10 | 28 | 1.218 | 1.812 | 1.262 | 3.625 | 10B | UB | |
| 7.5 | Flange | 75F-3.5F | 28 | 1.218 | 1.812 | 1.262 | Flange | 10B | 3.5 BC | 3.50 Bolt Circle |
| 7.5 | Flange | 75F-4.25F| | 28 | 1.218 | 1.812 | 1.262 | Flange | 10B | 4.25 BC | 4.25 Bolt Circle |
| 8.0 | 1310BC | 8.0-1310 | 25 | 1.098 | 1.812 | 2.625 | 4.375 | ?? | UB | New |
| 8.8 | Flange | 88.3.54.25F | 30 | 1.312 | 1.812 | 1.242 | Flange | 10B | 4.25 BC | 4.25 Bolt Circle |
| 8.8 | 1310BC | 88.30BC | 30 | 1.312 | 1.812 | 1.275 | 3.145 | 10B | UB | |
| FD – 9 | 1310 | 928-10 | 28 | 1.218 | 1.812 | 2.425 | 4.000 | 10B | UB | |
| FD – 9 | 1330BC | 928.30BC | 28 | 1.218 | 1.812 | 2.425 | 4.000 | 10B | UB | |
| FD – 9 | 1330BC | 928.30BCL | 28 | 1.218 | 1.812 | 2.425 | 5.000 | 10 | UB | |
| FD – 9 | 1350 | 928-50 | 28 | 1.218 | 1.812 | 2.425 | 4.000 | 10B | UB | |
| 9.75 | Flange | 975-4.25F | 31 | 1.343 | 1.812 | 1.640 | Flange | 12B | 2* Pilot | 4.25 Bolt Circle |
| 10.25 | 1310BC | 1025-30BC | 31 | 1.343 | 1.812 | 1.262 | 3.143 | 12B | UB | |
| 10.25 | 1310BC | 1025-30BC | 31 | 1.343 | 1.812 | 1.640 | 3.545 | 12B | UB | |
| 10.25 | 1350 | 1025.50 | 31 | 1.343 | 1.812 | 1.262 | 3.150 | 12B | BS | |
| 10.25 | 1350 | 1025-50D | 31 | 1.343 | 1.812 | 1.640 | 3.500 | 12B | BS | Black Plastic |
| 10.5 | 1350 | 1050-50 | 31 | 1.343 | 1.812 | 1.640 | 3.500 | 12B | BS | 3.00°C-Seal |
| 10.5 | 1410 | 1050-1410 | 31 | 1.343 | 1.812 | 1.640 | 3.525 | 12B | BS | |
| 10.5 | Flange | 1050/4.75F | 31 | 1.343 | 1.812 | 1.640 | 3.525 | 12B | 2.935″P | 4.75″ Bolt Circle |
Ford BC (Big Cap) Note: BC Diameter = 1 1/8″ In 1310 & 1330 Series. Standard Cap Diameter = 1 1/1€
MOPAR: Dodge – Chrysler – Plymouth
Almost all Early Dodge differential yokes were an inside lock style.
Be absolutely certain that you install the C-Clips on the 2 U-Joint caps that go in the pinion yoke (as shown on the right). Turn these cap/clips to the back and make sure they fully seat in the back machined edges of the pinion yoke The C-Clips perfectly center the U-Joint in the pinion yoke and lock it in place. A U-Joint cap will surely come out if you fail to install the clips.
Note: A 7260 is 2 1/8 (2.125) in between the inner edges and a 7290 is 2 5/8 (2.622) in between the inner edges.
| Diff Type | UJ Series |
Part Code |
Series # |
Spline Dia. |
Grnd Hub Seal Dia. |
Length Thru Hole |
Centerline to End |
Ring Bplts |
Hardware Kit |
Notes |
|---|---|---|---|---|---|---|---|---|---|---|
| 7.25 | 1310 | 725.10 | 27 | 1.172 | 1.688 | 1.062 | 2.750 | 8B | BS | |
| 7.25 | 7260 | 725-60 | 27 | 1.172 | 1.688 | 1.062 | 2.750 | 8B | BS | |
| 7.25 | 7290 | 725-90 | 27 | 1.172 | 1.688 | 1.062 | 2.750 | 8B | BS | |
| 8.25 | 1310 | 825-10 | 27 | 1.172 | 1.688 | 1.062 | 2.750 | 10B | BS | |
| 8.25 | 7290 | 825.90 | 27 | 1.172 | 1.688 | 1.062 | 2.750 | 10B | BS | |
| 8.75 | 7260 | 875.60 | 29 | 1.263 | 1.875 | 1.500 | 3.188 | 12B | BS | |
| 8.75 | 7260 | 875.10.60 | 10 | 1.188 | 1.875 | 1.500 | 3.350 | 12B | BS | |
| 8.75 | 7290 | 875.10.90 | 10 | 1.188 | 1.875 | 1.500 | 3.350 | 12B | BS | |
| 8.75 | 1350 | 875-10.50 | 10 | 1.188 | 1.875 | 1.650 | 3.125 | 12B | BS | |
| 9.25 | 7260 | 925-60 | 29 | 1.263 | 1.875 | 1.500 | 3.350 | 12B | BS | |
| 9.25 | 7290 | 925-90 | 29 | 1.263 | 1.875 | 1.500 | 3.359 | 12B | BS | |
| 9.25 | Flange | 925-FL | 29 | 1.263 | 1.875 | 1.500 | 1.980 | 12B | 3.94″BC | 2.16 Pilot & 3.94 BC |
| 10.5 | Flange | AAM.D | 30 | 1.588 | 2.369 | 1.655 | 2.505 | |||
| 11.5 | Flange | AAM.D | 30 | 1.588 | 2.369 | 1.655 | 2.505 |
Note: MOPAR typically use a Square Cut Spline. Dana uses a Involute Spline. Measurements appear the same but will not always interchange due to spline cut. Square Cut is very flat at end and Involute is more pointed at end of spline.
Dana Pinion Yokes
| Diff Type | UJ Series |
Part Code |
Series # |
Spline Dia. |
Grnd Hub Seal Dia. |
Length Thru Hole |
Centerline to End |
Ring Bplts |
Hardware Kit |
Notes |
|---|---|---|---|---|---|---|---|---|---|---|
| AMC 20 | 1310 | A20-10 | 28 | 1.229 | 1.844 | 1.375 | 2.938 | 8B | BS | |
| AMC 20 | 1350 | A20-50 | 28 | 1.229 | 1.844 | 1.375 | 3.031 | 8B | BS | |
| 28 | 1310 | A20-50 | 23 | 1.031 | 1.552 | 1.500 | 3.000 | 10B | BS | |
| 30 | 1310 | D30-10 | 26 | 1.146 | 1.552 | 1.500 | 3.000 | 10B | BS | |
| 35 | 1310 | D35-10 | 26 | 1.146 | 1.844 | 1.375 | 2.938 | BB | BS | |
| 35 | 1330 | D35-30 | 26 | 1.146 | 1.844 | 1.375 | 3.562 | 8B | BS | OBSOLETE |
| 35 | 1330 | D35-30 | 26 | 1.146 | 1.844 | 1.375 | 3.562 | 8B | BS | OBSOLETE |
| 44 | 7290 | D44-90 | 26 | 1.146 | 1.552 | 1.500 | 3.350 | 10B | BS | OBSOLETE |
| 44 | 1310 | D44-10 | 26 | 1.146 | 1.552 | 1.500 | 3.000 | 10B | BS | |
| 44 | 1310 | D44-10-10 | 10 | 1.125 | 1.562 | 1.500 | 3.000 | 10B | UB | OBSOLETE |
| 44 | 1330 | D44.30 | 26 | 1.146 | 1.552 | 1.500 | 3.000 | 10B | BS | |
| 44 | 1330BC | D44-30BC | 26 | 1.146 | 1.562 | 1.500 | 3.000 | 10B | UB | |
| 44 | 1350 | D44-50 | 26 | 1.146 | 1.562 | 1.500 | 3.000 | 10B | BS | |
| 50 | 1310 | D50-10 | 26 | 1.146 | 1.552 | 1.500 | 3.000 | 10B | BS | |
| 60 | 7290 | 060.90 | 29 | 1.276 | 1.875 | 1.500 | 3.359 | 12B | BS | |
| 60 | 1310 | D60.10 | 29 | 1.276 | 1.875 | 1.500 | 2.938 | 12B | BS | |
| 60 | 1330 | D60.10 | 29 | 1.276 | 1.875 | 1.500 | 2.938 | 12B | BS | |
| 60 | 1330 | D60-30L | 29 | 1.276 | 1.875 | 1.500 | 3.188 | 12B | BS | OBSOLETE |
| 60 | 1350 | D60.50 | 29 | 1.276 | 1.875 | 1.500 | 3.000 | 12B | BS | |
| 60 | 1350 | D60-50UB | 29 | 1.276 | 1.875 | 1.500 | 3.375 | 12B | UB | U.BOLT OFF ROAD |
| 60 | 1480 | D60-1480 | 29 | 1.276 | 1.875 | 1.500 | 3.500 | 12B | BS | |
| 60 | 1410 | D60-1410 | 29 | 1.276 | 1.875 | 1.500 | 3.188 | 12B | UB | |
| 70 | 7290 | D70-90 | 29 | 1.276 | 1.875 | 1.500 | 3.359 | 12B | BS | OBSOLETE |
| 70 | 1310 | D70-10 | 29 | 1.276 | 1.875 | 1.500 | 2.938 | 12B | BS | |
| 70 | 1330 | D70-30 | 29 | 1.276 | 1.875 | 1.500 | 2.938 | 12B | BS | |
| 70 | 1330 | D70.30L | 29 | 1.276 | 1.875 | 1.500 | 3.188 | 12B | BS | OBSOLETE |
| 70 | 1350 | D70-50 | 29 | 1.276 | 1.875 | 1.500 | 3.000 | 128 | BS | |
| 70 | 1350 | D70-50UB | 29 | 1.276 | 1.875 | 1.500 | 3.375 | 12B | UB | |
| 70 | 1410 | D70-1410 | 29 | 1.276 | 1.875 | 1.500 | 3.188 | 128 | BS | |
| 70 | 1480 | D70.1480 | 29 | 1.276 | 1.875 | 1.500 | 3.500 | 12B | BS | |
| 80 | 1410 | D80-1410 | 37 | 1.609 | 2.500 | 2.000 | 4.312 | 12B | BS | |
| 80 | 1410 | D80-1410 | 37 | 1.609 | 2.500 | 2.000 | 4.300 | 12B | BS | |
| 80 | 1410 | D80-1410 | 37 | 1.609 | 2.500 | 2.000 | 4.312 | 12B | BS |
Note: MOPAR typically use a Square Cut Spline. Dana uses a Involute Spline. Measurements appear the same but will not always interchange due to spline cut. Square Cut is very flat at end and Involute is more pointed at end of spline.
