7 1/4 SG rebuild

[Corbetts_Auto]

We are rebuilding the 7 1/4 sure grip in a customer's 66 Barracuda. He does not want to swap rears and will only be running the stock V-8.

The question we have is about the carrier shims. when the assembly was disassembled it did not contain any shims only thick spacer on each side of the carrier. It also did not have a crush collar only a thin spacer. We have replaced all of the bearings and are ready to reassemble the unit. The problem is getting the right spacing. The assembly will not go back together with the spacers that were in it before.

The main question is it ok to not use one of the thicker spacers and just use a few of the shims supplied in the kit? We are just concerned that there is nothing to keep the shims in place (other than friction) because the bearing caps do not extend over where the shims will be. We have rebuilt many rear ends (mostly DANA & GM) with no problems, but the set up of this unit is different in many ways.

Also it doesn't look like we will be able to run any shims in front of the pinion, does this sound normal?

 

[Max340]

We are rebuilding the 7 1/4 sure grip in a customer's 66 Barracuda. He does not want to swap rears and will only be running the stock V-8.

The question we have is about the carrier shims. when the assembly was disassembled it did not contain any shims only thick spacer on each side of the carrier. It also did not have a crush collar only a thin spacer. We have replaced all of the bearings and are ready to reassemble the unit. The problem is getting the right spacing. The assembly will not go back together with the spacers that were in it before.

The main question is it ok to not use one of the thicker spacers and just use a few of the shims supplied in the kit? We are just concerned that there is nothing to keep the shims in place (other than friction) because the bearing caps do not extend over where the shims will be. We have rebuilt many rear ends (mostly DANA & GM) with no problems, but the set up of this unit is different in many ways.

Also it doesn't look like we will be able to run any shims in front of the pinion, does this sound normal?

The carrier has adjustable bearing saddles. The FSM calls them "hex adjusters". The hex adjusters are held in a locked position by lock bolts. There is a collapsable spacer on the pinion shaft. I'm not sure why you would have any other shims or spacers, since I don't see any on the exploded parts diagram in the FSM.

 

[Corbetts_Auto]

The carrier has adjustable bearing saddles. The FSM calls them "hex adjusters". The hex adjusters are held in a locked position by lock bolts. There is a collapsable spacer on the pinion shaft. I'm not sure why you would have any other shims or spacers, since I don't see any on the exploded parts diagram in the FSM.

First off thanks for the info. I do not see any thing that looks like an adjustable bearing saddle. The bearings simply press on the carrier similar to a GM unit.

I'll try and post a few pictures tomorrow. For now here is a picture prior to disassembly.

 

[Max340]

The adjustable hex is threaded to the caps and saddles in the housing, according to the FSM. I wish I could tell you for sure, but my last 7 1/4" axle went out to scrap when prices were high and my trailer of stuff to move to the new house was full... that and I was too damn hot and tired to give a doggone about it....