The Ford Barn

Lawrie · 07-18-2020, 05:19 PM

I have been doing a few 33/34 rear ends lately , and see they are different in the pinion and carrier bearings to the later ones. I think the engineers beefed them up.they also have a larger lube hole through to the centre of the pinion bearing.
The bearings also cost a lot more, this got me thinking and I got a later centre section out and have done some measuring,
If I skim .060 off the face of each axle trumpet and each side of the centre section and .040 off the brake backing plate mounting flange on the axle tube it will be the same over all dimension as the 33/34 axle assembly ,
and if you are using a later 3.78 or the 6 spline pinion the driveshaft will already be the correct length.
Then only thing that will have to be done is to shorten the torque tube to suit.This I have not done yet as it will take some fancy maching and setting up and my lathe is not that long.
any one done this?
Lawrie

07-18-2020, 05:19 PM	#1
Lawrie Senior Member Join Date: May 2010 Location: Qld, Australia Posts: 4,221	33/34 rear end I have been doing a few 33/34 rear ends lately , and see they are different in the pinion and carrier bearings to the later ones. I think the engineers beefed them up.they also have a larger lube hole through to the centre of the pinion bearing. The bearings also cost a lot more, this got me thinking and I got a later centre section out and have done some measuring, If I skim .060 off the face of each axle trumpet and each side of the centre section and .040 off the brake backing plate mounting flange on the axle tube it will be the same over all dimension as the 33/34 axle assembly , and if you are using a later 3.78 or the 6 spline pinion the driveshaft will already be the correct length. Then only thing that will have to be done is to shorten the torque tube to suit.This I have not done yet as it will take some fancy maching and setting up and my lathe is not that long. any one done this? Lawrie