How To Measure For A Custom Driveshaft

Measure from the edge of the seal (Not the output shaft) to the flat of the rear pinion yoke

Also measure the flange pattern as shown here:

For vehicles that use a flat flange on the transmission and a yoke on the differential:

 Also measure the flange pattern as shown here:

For vehicles with a slide in transmission yoke and a flat flange on the differential:

Measure from the edge of the seal (Not the output shaft) to the flat of the rear pinion flange

Also measure the flange pattern as shown here:

For vehicles that use a flat flange on the transmission and on the differential:

Also measure the flange pattern as shown here:

On all live axle applications these measurements must be done at ride height.

The car can be lifted under the differential but make sure it has weight on the rear springs.

 Be very careful and accurate with these measuements.

The size changes in increments of 1/16" (1-1/16" | 1-1/8" | 1-3/16")