3R Series Driveshaft Parts

All series

The 3R is the GM Saginaw series (1.125" caps, 2.556" width) used on 1960s-80s GM cars and trucks and on many GM-pattern double-cardan heads; it is often combined with a 1310 or 1350 on conversion joints. Nominal 3R dimensions: 1.125" bearing cap diameter, 2.556" snap-ring-to-snap-ring width. Measure the caps on your old joint to confirm the series before ordering.

1.125" Cap diameter (nominal)
2.556" Width, ring to ring
59 Parts in stock
12 Categories

3R Series Transmission Yokes 23

All 23 in the table

3R03-700 Transmission Yoke Inside Snap Ring 3R Ser' 26/27 Splines GM APP...
$32.92
3R03-350 Transmission Yoke 3R Fits various 27 spline (GM) Output Shafts:...
$36.71
3R03-276U Transmission Yokes, 3R Series, 26/27 X 1.176 Splines, 1.500" Hub...
$57.73
3R03-702 Transmission Yokes, 3R Series, 26/27 X 1.176 Splines, 1.500" Hub...
$59.95
3R-3-6081X Transmission Yokes, 3R Series, 26/27 X 1.176 Splines, 1.500" Hub...
$67.16
3R03-703 Transmission Yoke Inside Snap Ring 3R TH 700/700R4,It has the sa...
$70.86

3R Series Weld Yokes 9

All 9 in the table

3R26-30 Weld Tube Yoke 3R, Fits: 3.000x 0.083 Tube, Butt: 2.845 Inch Cen...
$29.30
3R-28-437 Weld Tube Yoke 3R, Fits: 3.000x 0.083 Tube, Butt: 2.844 Inch Cen...
$29.30
3R26-29 Weld Yokes, 3R Series, Butt Dia 2.562", Tube Dia Wall 2.750X0.09...
$35.42
3R26-31 Weld Yokes, 3R Series, Butt Dia 2.874", Tube Dia Wall 3.000X0.06...
$35.48
3R26-40 Weld Yokes, 3R Series, Butt Dia 3.875", Tube Dia Wall 4.000X0.06...
$46.85
3R26-35 Weld Yokes, 3R Series, Butt Dia 3.383", Tube Dia Wall 3.500X0.06...
$50.14

3R Series End Yokes 5

All 5 in the table

3R04-02 End Yoke, 3R Series, 1.312" splines dia, 1.940" Hub Dia"
$98.09
3R04-271 End Yoke, 1.170" Splines Dia, 1.942" Hub Dia, 27 Spline
$119.07
3R01-292 End Yoke, 3R Series, 1.312" Splines Dia, 2.110" Hub Dia
$119.09
3R04-01 End Yoke, 1.188" Splines Dia, 1.692" Hub Dia, 27 Spline
$131.94
3R04-03 End Yoke, 3R Series, 1.312" Splines Dia, 2.110" Hub Dia
$138.80

3R Series CV Flange Yokes 4

All 4 in the table

3R02-311CV Cv Flange Yokes, 3R Series, Ball Stud Dia 0.5", Bolt Circle Dia...
$67.96
3R02-391CV Cv Flange Yokes, 3R Series, Ball Stud Dia 0.5", Bolt Circle Dia...
$82.55
3R02-361CV Cv Flange Yokes, 3R Series, Ball Stud Dia 0.5", Bolt Circle Dia...
$84.96
N3R-83-627 Cv Flange Yoke, Ball Stud Dia 0.91", Bolt Circle Dia 4.25", Bolt...
$155.35

3R Series Yoke Shafts 4

All 4 in the table

3R82-321 Yoke Shafts, 3R Series, 1.375" splines dia, 32 Spline
$72.28
40006885 Yoke Shafts, 3R Series, 1.375" Splines dia, 32 Spline
$84.56
40020347 Yoke Shafts, 3R Series, 1.375" Splines Dia, 31/32 Spline
$108.82
3R82-322 Yoke Shafts, 3R Series, 1.375" Splines Dia, 31/32 Spline
$108.82

3R Series CV Ball Kits 3

All 3 in the table

2-9302 Cv Ball Kit, Stud Bore Dia 0.46", Ball Dia 0.91", Seal Height 0....
Call for price
3R25-20 Cv Ball Kit, Stud Bore Dia 0.5", Ball Dia 908", Seal Height 197"...
Call for price
2-9301 Cv Ball Kit, Stud Bore Dia 625", Ball Dia 0.91", Seal Height 197...
Call for price

3R Series Flange Yokes 3

All 3 in the table

3R02-291 Flange Yoke 3R Rectangle Pattern 1.871 x 2.232 Serrated, Bolt Ci...
$26.51
3R02-21 Flange Yokes, 3R Series, Pilot Dia 3.125-F, Bolt Circle Dia 4.25...
$48.27
N3R-2-8268 Flange Yokes, 3R Series, Bolt Circle Dia 4.250", Pilot Dia 3.125...
$94.45

3R Series Strap Kits 2

All 2 in the table

1-2025 Strap Kit, Bolt Length 1.5", Bolt Torque 32 ft-lb, Center To Cen...
$8.49
2-70-48X Strap Kit, Bolt Length 1.5", Bolt Torque 32 ft-lb, Center To Cen...
$8.49

3R Series Universal Joints 2

All 2 in the table

5-795XU Universal Joint, 3R Series Sealed, GM APP
$15.22
5-795X Universal Joint 3R Series, ISR
$26.45

3R Series Ball Stud Yokes 2

All 2 in the table

3R26-20 3R Ball Stud Yoke 3RL fits 2.000 X 0.120 Butt Dia 1.766"
$60.56
3R26-13 3R Ball Stud Yoke 3RL fits 1.250 X 0.120 Butt Dia 1.016
$98.62

3R Series Slip Yoke 1

All 1 in the table

3R-3-9170KX Slip Yoke 3R series, Splines: 1.375x16 Center Joint To End 7.375
$29.61

3R Series H Yokes 1

All 1 in the table

3R24-20 H Yokes, 3R Series, Swing Dia 4.000", 3.250" Ctr To Ctr Of Mount...
$50.86

3R series questions

What size is a 3R series u-joint?

A 3R series universal joint has 1.125" diameter bearing caps and measures 2.556" from snap ring to snap ring (outside of cap to outside of cap). These are nominal figures; measure the caps on your old joint with a caliper to confirm the series.

Is the 3R series the same as the 7290?

No. The 3R and 7290 series share the same 1.125" cap diameter but differ in width, so their yokes are not interchangeable. Use a conversion u-joint when you need to join a 3R yoke to a yoke from a different series.

Which 3R series parts does UDS stock?

59 3R series parts across 12 categories: 23 transmission yokes, 9 weld yokes, 5 end yokes, 4 cv flange yokes, 4 yoke shafts, 3 cv ball kits and more. Most parts listed in stock ship the same day from Florida when ordered before 2 pm EST.

How do I match 3R series parts on a driveshaft?

Every u-joint on the shaft must match the yokes it sits in: a 3R series joint needs 3R series weld yokes, slip yokes, end yokes or flange yokes (1.125" cap bores). Mixed-series shafts use a conversion joint with a different cap size on each axis.

Other u-joint series

Series designations (1310, 1350, 3R, SPL…) are Spicer^® / Dana^® nomenclature used across the industry and are shown for identification and cross-reference only. Dimensions are nominal; verify fitment before ordering. Copyright & trademark notice