Custom Driveshaft/Tailshaft - How to Measure
Figure 1:
(Transmission seal to Centre of U-Joint)
This is for vehicles with a slide in transmission yoke (TH350 / TH400 / T56 / etc.) and a pinion yoke with
U-bolts or straps on the differential (Ford 9″, GM 12-Bolt, etc.):
****PLEASE NOTE: Some Transmissions (T56 / T56 Magnum, TKO, etc.) have a rubber dust boot that protrudes off of the back of the transmission.
If you do have one of these types of transmissions, measurements must be taken from the end of the transmission tail housing as this point will be flush with the oil seal.
When Measuring:
If you have a solid or live rear axle, measurement MUST BE TAKEN WITH REAR AT RIDE HEIGHT (The car can be lifted under the differential but make sure it has weight on the rear springs)
– We prefer your measurement to be taken from the OIL SEAL (flush with the end of tail housing). Do not measure from the tip of the output shaft or from any dust boot that may protrude from the transmission.
– See below for information on measuring your pinion yoke and flange
Figure 2:
(Transmission Seal to Flange)
This is for vehicles with a slide-in transmission yoke (TH350 / TH400 / T56 / etc.)
and a flat flange on the differential (can be 3-bolt, 4-bolt or 6-bolt, etc.):
****PLEASE NOTE: Some Transmissions (T56 / T56 Magnum, TKO, etc.) have a rubber dust boot that protrudes off of the back of the transmission.
If you do have one of these types of transmissions, measurements must be taken from the end of the transmission tail housing as this point will be flush with the oil seal.
When Measuring:
If you have a solid or live rear axle, measurement MUST BE TAKEN WITH REAR AT RIDE HEIGHT (The car can be lifted under the differential but make sure it has weight on the rear springs)
– We prefer your measurement to be taken from the OIL SEAL (flush with the end of tail housing). Do not measure from the tip of the output shaft or from any dust boot that may protrude from the transmission.
– See Below for information on measuring your pinion yoke and flange
Figure 3:
(Transmission Flange to Centre of u-Joint)
This is for vehicles with a flat flange (can be 3-bolt, 4-bolt or 6-bolt, etc.) on the transmission and a pinion yoke with U-bolts or straps on the differential (Ford 9″, GM 12-Bolt, etc.):
When Measuring:
If you have a solid or live rear axle, measurement MUST BE TAKEN WITH REAR AT RIDE HEIGHT (The car can be lifted under the differential but make sure it has weight on the rear springs)
– We prefer your measurement to be taken from the BOLT FACE on the transmission flange (Centre of u-Joint)
ANY RUBBER GUIBO COUPLERS MUST BE REMOVED BEFORE MEASURING
– See below for information on measuring your pinion yoke and flange
Figure 4:
(Transmission Flange to Differential Flange)
This is for vehicles with a flat flange (can be 3-bolt, 4-bolt or 6-bolt, etc.) on the transmission and a flat flange on the differential (can be 3-bolt, 4-bolt or 6-bolt, etc.):
When Measuring:
If you have a solid or live rear axle, measurement MUST BE TAKEN WITH REAR AT RIDE HEIGHT (The car can be lifted under the differential but make sure it has weight on the rear springs)
– We prefer your measurement to be taken from the BOLT FACE on the transmission and differential flanges
– ANY RUBBER GUIBO COUPLERS MUST BE REMOVED BEFORE MEASURING
– See Below for information on measuring your pinion yoke and flange
Rear Pinion Yoke and Flange Measurement Diagrams:
Pinion Yoke:
-If you aren’t sure what size u-joint you have, measure the pinion yokes as shown here:
– Be very careful and accurate with these measurements as the size changes in increments of 1/16″ (1-1/16″ | 1-1/8″ | 1-3/16″)
-Let us know if you have “locating” tabs (as shown) or if your yoke uses an inside clip:
Flat Flange:
-We may need a flange measurement to identify the correct one, see the diagrams below for how to measure 3-Bolt, 4-Bolt, and 6-Bolt Flange patterns.
– ANY RUBBER GUIBO COUPLERS MUST BE REMOVED BEFORE MEASURING
Rear Pinion Yoke and Flange Measurement Diagrams:
Measure Flange Pattern:
1. Centre of the bolt to centre of the bolt -Horizontal
2. Cantering pilot diameter (Can be male OD of Female ID- Must Specify)
Measure Flange Pattern:
A. Centre of the bolt to centre of the bolt -Vertical
B. Centre of the bolt to centre of the bolt -Horizontal
C. Cantering pilot hole diameter (Can be male OD of Female ID- Must Specify
**Notes**
Please keep in mind that we are a full custom CV Axle and Driveshaft/Tailshaft shop able to attach most ends together. If you have any questions do not hesitate to contact us HERE. Please make sure you have all of the correct information readily available.
Once you have the measurements and vehicle specific information
CLICK HERE
