$80.30
The 3104-301 pinion is part of the 1310 series and is designed to fit the GM 8.5-inch Corvette differential. It features a spline count of 30, a spline diameter of 1.328 inches, and a hub diameter of 1.739 inches. The through-hole measures 1.181 inches, and the centerline-to-end distance is 2.598 inches. Classified as light duty (LD) and in a UB style, this pinion is compatible with the Dana u-bolt kit number 2-94-28X, aligning with the specifications for the GM 8.5″ Corvette differential.
$80.30
| Weight | 10 lbs |
|---|---|
| Dimensions | 25 × 18 × 10 in |
| CJ TO END | 2.598 |
| HUB DIA | 1.739 |
| Notes | GM8.5 VETTE, U BOLT PART NUMBER: 2-94-28 |
| Partn number | 3104-301 |
| SERIES | 1310 |
| SPLINES COUNT | 30 |
| SPLINES DIA | 1.328 |
| STYLE | UB |
| Through hole | 1.181 |
1 in stock (can be backordered)
IMPORTANT: Vehicle must be on a level surface with suspension at normal ride height for proper measurements. When measuring to the center bearing, measure to the center of the round or slotted carrier bearing bolt holes. Many carrier mounts are slotted for adjustment.
Measurement (A) :
Measure from the transmission output flange face to the center of the carrier bearing bolt holes.
Measurement (B) :
Measure from the center of carrier bearing bolt holes to the flats (center of u-joint or flats) on the end yoke at the differential.
IMPORTANT: Vehicle must be on a level surface with suspension at normal ride height for proper measurements. When measuring to the center bearing, measure to the center of the round or slotted carrier bearing bolt holes. Many carrier mounts are slotted for adjustment.
Measurement (A):
Measure from the transmission output flange face to the center of the carrier bearing bolt holes.
Measurement (B) :
Measure from the center of carrier bearing bolt holes to the face of the flange on the differential.
IMPORTANT: Vehicle must be on a level surface with suspension at normal ride height for proper measurements. When measuring to the center bearing, measure to the center of the round or slotted carrier bearing bolt holes. Many carrier mounts are slotted for adjustment.
Measurement (A) :
Measure from end of rubber boot extension on the transmission to the center of the carrier bearing bolt holes.
Measurement (B) :
Measure from the center of carrier bearing bolt holes to the end yoke flats (center of u-joint or flats) on the differential.
Measurement (C) :
Measure from the end of the rubber boot extension to end the of the transmission output/spline. If spline is recessed in rubber boot Extension, enter ø.
IMPORTANT: Vehicle must be on a level surface with suspension at normal ride height for proper measurements. When measuring to the center bearing, measure to the center of the round or slotted carrier bearing bolt holes. Many carrier mounts are slotted for adjustment.
Measurement (A) :
Measure from end of rubber boot extension on the transmission to the center of the carrier bearing bolt holes.
Measurement (B) :
Measure from the center of carrier bearing bolt holes to the flange face on the differential.
Measurement (C) :
Measure from the end of the rubber boot extension to end the of the transmission output/spline. If spline is recessed in rubber boot Extension, enter ø.
IMPORTANT: Vehicle must be on a level surface with suspension at normal ride height for proper measurements. When measuring to the center bearing, measure to the center of the round or slotted carrier bearing bolt holes. Many carrier mounts are slotted for adjustment.
Measurement (A):
from the transmission output end yoke (center of u-joint or flats) to the center of the carrier bearing bolt holes.
Measurement (B):
Measure from the center of carrier bearing bolt holes to the end yoke (center of u-joint or flats) on the differential.
IMPORTANT: Vehicle must be on a level surface with suspension at normal ride height for proper measurements. When measuring to the center bearing, measure to the center of the round or slotted carrier bearing bolt holes. Many carrier mounts are slotted for adjustment.
Measurement (A) :
Measure from the transmission output end yoke (center of u-joint or flats) to the center of the carrier bearing bolt holes.
Measurement (B) :
Measure from the center of carrier bearing bolt holes to the face of the flange on the differential.
IMPORTANT: Vehicle must be on a level surface with suspension at normal ride height for proper measurements. When measuring to the center bearing, measure to the center of the round or slotted carrier bearing bolt holes. Many carrier mounts are slotted for adjustment.
Measurement (A) – Front Driveshaft Length:
Measure from end of rubber seal on the transmission to the center of the carrier bearing bolt holes.
Measurement (B) – Rear Driveshaft Length:
Measure from the center of carrier bearing bolt holes to the end yoke flats (center of ujoint) on the differential.
Measurement (C) – Spline Extrusion Length:
Measure from rubber seal to end the of the transmission output/spline. If spline is recessed in rubber seal, enter ø.
IMPORTANT: Vehicle must be on a level surface with suspension at normal ride height for proper measurements. When measuring to the center bearing, measure to the center of the round or slotted carrier bearing bolt holes. Many carrier mounts are slotted for adjustment.
Measurement (A) – Front Driveshaft Length:
Measure from end of rubber seal on the transmission to the center of the carrier bearing bolt holes.
Measurement (B) – Rear Driveshaft Length:
Measure from the center of carrier bearing bolt holes to the end yoke flats (center of ujoint) on the differential.
Measurement (C) – Spline Extrusion Length:
Measure from rubber seal to end the of the transmission output/spline. If spline is recessed in rubber seal, enter ø.
E.) Cap Diameter:
Diameter measured over bearing cap space.
F.) Width:
Distance Measured Between Machined Flats
| Series | Width | Cap Diameter |
|---|---|---|
|
7260 CHRYSLER |
2 1/8″ = 2.125 |
1 5/64″ = 1.078 |
|
7290 CHRYSLER |
2 5/8″ = 2.625 |
1 1/8″ = 1.125 |
|
3R GM |
2 9/16″ = 2.563 |
1 1/8″ = 1.125 |
E.) Cap Diameter:
Diameter measured over bearing cap space.
F.) Width:
Distance measured over compressed bearing cap.
| Series | Width | Cap Diameter |
|---|---|---|
|
1210 |
2 7/16″ = 2.438 |
1 1/16″ = 1.063 |
|
1310 |
3 7/32″ = 3.219 |
1 1/16″ = 1.063 |
|
1310 FORD* |
3 7/32″ = 3.219 |
1 1/8″ = 1.125 |
|
1330 |
3 5/8″ = 3.625 |
1 1/16″ = 1.063 |
|
1330 FORD* |
3 5/8″ = 3.625 |
1 1/8″ = 1.125 |
|
1350 |
3 5/8″ = 3.625 |
1 1/16″ = 1.063 |
|
1410 |
4 3/16 = 4.188 |
1 3/16″ = 1.188 |
|
1415** |
4.178 |
1 3/16″ = 1.188 |
|
1480 |
4 3/16 = 4.188 |
1 3/8″ = 1.375 |
|
1485** |
4.178 |
1 3/8″ = 1.375 |
|
1550 |
4 31/32″ = 4.969 |
1 3/8″ = 1.375 |
|
1555** |
4.9464 |
1 3/8″ = 1.375 |
Width: measure from the inside flat of one yoke ear to the inside flat of the other ear
Cap Diameter: measure the width of the opening where the cap sits in the yoke
| Series | Width | Cap Diameter |
|---|---|---|
|
7260 CHRYSLER |
2 1/8″ = 2.125 |
1 5/64″ = 1.078 |
|
7290 CHRYSLER |
2 5/8″ = 2.625 |
1 1/8″ = 1.125 |
|
3R GM |
2 9/16″ = 2.563 |
1 1/8″ = 1.125 |
Width: measure from inside of tab to inside of tab. If you do not see a tab as shown, then you have an inside snap ring U-Joint.
Cap Diameter: measure the width of the opening where the cap sits in the yoke
| Series | Width | Cap Diameter |
|---|---|---|
|
1210 |
2 7/16″ = 2.438 |
1 1/16″ = 1.063 |
|
1310 |
3 7/32″ = 3.219 |
1 1/16″ = 1.063 |
|
1310 FORD* |
3 7/32″ = 3.219 |
1 1/8″ = 1.125 |
|
1330 |
3 5/8″ = 3.625 |
1 1/16″ = 1.063 |
|
1330 FORD* |
3 5/8″ = 3.625 |
1 1/8″ = 1.125 |
|
1350 |
3 5/8″ = 3.625 |
1 1/16″ = 1.063 |
|
1410 |
4 3/16 = 4.188 |
1 3/16″ = 1.188 |
|
1415** |
4.178 |
1 3/16″ = 1.188 |
|
1480 |
4 3/16 = 4.188 |
1 3/8″ = 1.375 |
|
1485** |
4.178 |
1 3/8″ = 1.375 |
|
1550 |
4 31/32″ = 4.969 |
1 3/8″ = 1.375 |
|
1555** |
4.9464 |
1 3/8″ = 1.375 |
Width:
U Joint: Please measure the distance to the outer edge of the snap ring grooves.
End Yoke: Please measure from the inside flat of one yoke ear to the inside flat of the other ear
Use the picture above for reference
Cap Diameter:
U Joint: Simply measure the U-Joint cap.
End Yoke: Please measure the width of the opening where the cap sits in the yoke.
Use the picture above for reference
| Series | Width | Cap Diameter |
|---|---|---|
|
7260 CHRYSLER |
2 – 1⁄8 (2.125) |
1 – 5⁄64 (1.078) |
|
7290 CHRYSLER |
2 – 5⁄8 (2.625) |
1 – 1⁄8 (1.125) |
|
3R GM |
2 – 9⁄16 (2.563) |
1 – 1⁄8 (1.125) |
|
2R GM |
2.342 |
1.00 |
Width:
U joint: Please compress the caps and measure from outside of cap to outside of cap .
End Yoke: Please measure from inside of tab to inside of tab, using the picture above for reference, If you do not see a tab as shown, then you have an inside snap ring u joint.
Use the picture above for reference
Cap Diameter:
U joint: Simply measure the U-Joint cap diameter .
End Yoke: Please measure the width of the opening where the cap sits in the yoke. use the picture above for reference
Use the picture above for reference
| Series | Width | Cap Diameter |
|---|---|---|
|
1210 |
2 7/16″ = 2.438 |
1 1/16″ = 1.063 |
|
1310 |
3 7/32″ = 3.219 |
1 1/16″ = 1.063 |
|
1310 FORD* |
3 7/32″ = 3.219 |
1 1/8″ = 1.125 |
|
1330 |
3 5/8″ = 3.625 |
1 1/16″ = 1.063 |
|
1330 FORD* |
3 5/8″ = 3.625 |
1 1/8″ = 1.125 |
|
1350 |
3 5/8″ = 3.625 |
1 3/16″ = 1.188 |
|
1410 |
4 3/16 = 4.188 |
1 3/16″ = 1.188 |
|
1415** |
4.178 |
1 3/16″ = 1.188 |
|
1480 |
4 3/16 = 4.188 |
1 3/8″ = 1.375 |
|
1485** |
4.178 |
1 3/8″ = 1.375 |
|
1550 |
4 31/32″ = 4.969 |
1 3/8″ = 1.375 |
|
1555** |
4.9464 |
1 3/8″ = 1.375 |
