
GM 3R Series
Center Supports
PICTURE | PART NUMBER | MAKE | MODEL AND YEAR | BEARING ID | CC OF HOLES | NOTES |
---|---|---|---|---|---|---|
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3R80-10![]() |
Cadillac Buick | Multiple applications | 1.575 | 1.500 | Housing and bearing included |
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3R80-15![]() |
Cadillac Buick | Multiple applications | 1.575 | Bearing only. Fits in housings of 3R80-10, 3R80-25, 3R80-30 and 3R80-35 | |
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3R80-25![]() |
Cadillac Buick | Multiple applications | 1.575 | 2.250 | Housing and bearing included, Housing is 1" taller than 3R80-10 |
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3R80-30![]() |
Cadillac | Factory limo (66-85) | 1.575 | 5.125 | Housing and bearing included |
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3R80-35![]() |
Buick | Electra LeSabre Wildcat |
1.575 | Bearing not included. Order 3R80-15 separately. | |
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3R80-50![]() |
Chevrolet GMC | S10/S15 (94-03) | 1.378 | 6.625 | Square type used with double CV |
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3R80-60![]() |
Chevrolet GMC | 1/2 ton pickups (99-03) | 1.378 | 6.625 | Enclosed type bracket with studs |
Companion Flanges
PART NUMBER | SPLINE COUNT | SPLINE DIA. | HUB DIA. | THRU HOLE | FACE TO END | PILOT DIA. | BOLT CIRCLE DIA. | NOTES |
---|---|---|---|---|---|---|---|---|
3R01-02![]() |
27 | 1.188 | 1.521 | 1.475 | 1.985 | 2.875 | 3.937 | |
3R01-292![]() |
30 | 1.312 | 2.110 | 1.150 | 3.125 | Serrated | Chry 9.25" Front / Serrated Flange |
End Yokes
PART NUMBER | SPLINE COUNT | SPLINE DIA. | HUB DIA. | THRU HOLE | C/L TO END | UJOINT | NOTES |
---|---|---|---|---|---|---|---|
3R01-292![]() |
30 | 1.312 | 2.110 | 1.150 | 3R | Chry 9.25" Front / Serrated Flange | |
3R04-01![]() |
27 | 1.188 | 1.692 | 1.475 | 3.575 | 3R | Strap type / Includes new pinion seal |
3R04-02![]() |
30 | 1.312 | 1.938 | 1.150 | 3.375 | 3R | Strap type |
3R04-03![]() |
30 | 1.312 | 2.110 | 1.150 | 3.375 | 3R | Strap type |
3R04-04![]() |
27 | 1.188 | 1.692 | 1.475 | 3.575 | 3R | Strap type / Has dampener/ Includes new pinion seal |
3R04-271![]() |
27 | 1.170 | 1.942 | 1.287 | 2.866 | 3R | 2-94-58X Ubolt Kit Included |
Flange Yokes
PART NUMBER | PILOT DIA. | BOLT CIRCLE DIA. | BOLT HOLE DIA. | FACE TO C/L | UJOINT | NOTES | TYPE |
---|---|---|---|---|---|---|---|
3R02-21![]() |
3.125 F | 4.250 | .455 | 1.687 | 3R | Saginaw non-CV | STD |
3R02-291![]() |
Serrated | 2.913 | .334 | 2.000 | 3R | Serrated flange face / Fits front shaft on 03+ Dodge pickups | STD |
3R02-311CV![]() |
3.125 F | 4.250 | .455 | 1.687 | 3R | Saginaw CV flange / Replaces 3R02-20 / Includes CV kit with ball | CV |
3R02-361CV![]() |
3.622 | 4.440 | .422 | 1.687 | 3R | Saginaw CV flange / For Hummer H3 conversion / Includes CV kit with ball | CV |
3R02-391CV![]() |
3.125 F | 4.000 | .455 | 1.687 | 3R | Saginaw CV flange / For early Buick/Cadillac / Includes CV kit with ball | CV |
H Yokes
PART NUMBER | C/L TO C/L | NOTES |
---|---|---|
3R24-20![]() |
3.250 | 3R Barrel type |
Pinion Yokes
DIFF MODEL | PART NUMBER | SPLINE COUNT | SPLINE DIA. | HUB DIA. | THRU HOLE | C/L TO END | UJOINT | NOTES |
---|---|---|---|---|---|---|---|---|
GM 7.25 | 3R01-02![]() |
27 | 1.188 | 1.521 | 1.475 | 1.985 | N/A | 3.937 BC flange with 2.875 pilot |
Chrysler 9.25 Front | 3R01-292![]() |
30 | 1.312 | 2.110 | 1.150 | 3.125 | 3R | Chry 9.25" Front / Serrated Flange |
GM 7.5 | 3R04-01![]() |
27 | 1.188 | 1.692 | 1.475 | 3.575 | 3R | Strap type, Includes new pinion seal |
GM 8.5 | 3R04-02![]() |
30 | 1.312 | 1.940 | 1.150 | 3.375 | 3R | Strap type |
GM 9.25 | 3R04-02![]() |
30 | 1.312 | 1.938 | 1.150 | 3.375 | 3R | Strap type |
GM 8.6 | 3R04-03![]() |
30 | 1.312 | 2.110 | 1.150 | 3.375 | 3R | Strap type |
GM 7.5 | 3R04-04![]() |
27 | 1.188 | 1.692 | 1.475 | 3.575 | 3R | Strap type / Has dampener / Includes new pinion seal |
GM 8.2 BOP | 3R04-271![]() |
27 | 1.170 | 1.942 | 1.287 | 2.866 | 3R | 2-94-58X Ubolt Kit Included |
Slip Yokes
PART NUMBER | SPLINE COUNT | MAJOR SPLINE DIA. | C/L TO END | UJOINT |
---|---|---|---|---|
3R03-32![]() |
31/32 | 1.378 | 7.375 | 3R |
Small Parts and Kits
PART NUMBER | PART TYPE | DESCRIPTION |
---|---|---|
3R18-321![]() |
Boot | Boot kit with 2 clamps for GM T/C yoke shaft |
3R25-20![]() |
CV repair kit | Complete 3R center ball repair kit |
3R94-10![]() |
U-bolt kit | 3R Series u-bolt kit includes (2) u-bolts and (4) nuts and washers |
Splined Stubs
PART NUMBER | SPLINE COUNT | MAJOR SPLINE DIA. | END TO POINT OF WELD | TUBE SIZE | NOTES |
---|---|---|---|---|---|
3R53-320![]() |
31/32 | 1.375 | 8.750 | 2.75X.065 | Midship type for slip yoke / Non-coated splines |
3R53-321![]() |
31/32 | 1.375 | 8.750 | 2.75X.065 | Midship type for slip yoke / Coated splines |
Transmission Yokes
PART NUMBER | SPLINE COUNT | MAJOR SPLINE DIA. | C/L TO END | GROUND HUB DIA. | UJOINT | NOTES |
---|---|---|---|---|---|---|
3R03-350![]() |
26/27 | 1.176 | 5.460 | 1.500 | 3R | Full spline non-vented, GM 7812557 |
3R03-400![]() |
31/32 | 1.391 | 8.000 | 1.866 | 3R | Full spline non-vented, GM 7838665 |
3R03-401CV![]() |
31/32 | 1.391 | 6.875 | 1.866 | 3R | Recessed spline vented |
3R03-402![]() |
31/32 | 1.391 | 7.187 | 1.866 | 3R | Full spline non-vented |
3R03-403![]() |
30/32 | 1.391 | 7.875 | 1.866 | 3R | Full spline non-vented with dampener |
3R03-700![]() |
26/27 | 1.176 | 6.760 | 1.500 | 3R | Recessed spline vented, GM 7848635 |
3R03-701![]() |
26/27 | 1.176 | 6.760 | 1.500 | 3R | Full spline non-vented with dampener / GM 7845093 |
3R03-702![]() |
26/27 | 1.176 | 6.760 | 1.500 | 3R | Recessed spline non-vented, GM 26042557 |
3R03-703![]() |
26/27 | 1.176 | 6.760 | 1.500 | 3R | Full spline non-vented, GM 26051658 |
UJoints
PART NUMBER | BEARING CAP | SNAP RING LOCATION | SNAP RING STACKUP | NOTES |
---|---|---|---|---|
3R51-31![]() |
1.125 | Inside | 2.562 | 3R Saginaw with recess center in cross |
Weld Yokes
PART NUMBER | BUTT DIA. | TUBE SIZE | C/L TO WELD | UJOINT | NOTES |
---|---|---|---|---|---|
3R26-20![]() |
1.766 | 2.00X.120 | 1.675 | 3R | CV style with ball |
3R26-22![]() |
1.958 | OE Tube | 1.750 | 3R | Fits front shaft of late model GM pickups |
3R26-27![]() |
2.625 | 2.75X.065 | 2.250 | 3R | .5" longer than OE |
3R26-271![]() |
2.625 | 2.75X.065 | 1.750 | 3R | |
3R26-29![]() |
2.562 | 2.75X.095 | 2.250 | 3R | .5" longer than OE |
3R26-30![]() |
2.844 | 3.00X.083 | 1.750 | 3R | |
3R26-30A![]() |
2.844 | 3.00X.083 | 2.280 | 3R | 3R aluminum |
3R26-31![]() |
2.875 | 3.00X.065 | 1.750 | 3R | |
3R26-35![]() |
3.383 | 3.50X.065 | 1.940 | 3R | |
3R26-40![]() |
3.875 | 4.00X.065 | 1.690 | 3R | |
3R26-40A![]() |
3.844 | 4.00X.083 | 2.100 | 3R | 3R aluminum |
3R26-41![]() |
3.844 | 4.00X.083 | 1.690 | 3R |
Yoke Shafts
PART NUMBER | SPLINE COUNT | MAJOR SPLINE DIA. | C/L TO END | SPLINE LENGTH | UJOINT | NOTES |
---|---|---|---|---|---|---|
3R82-321![]() |
32 | 1.378 | 7.810 | 3.350 | 3R | GM transfer case |