[Bob Mulry]

If you think you have a problem just measure from the area that the front pinion bearing mounts to the end of the spline.....

Measure the bearing mount diameters of the front and rear pinion bearing..

Does the companion flange fit the new gear set???????????

Just looking at the pix it just appears that difference is the length of the gear teeth on the pinion caused by a ratio change.....

Just my 2 cents....

Bob