Is this true..........?

[manpowermustang]

Ive heard this alot in the past year and did a search and came across this. I heard that if you change you ring and pinion with Ford gears you can use the same spacers and shim.

I picked up a set of 3.73's to replace my 2.73's and I got Ford gears. I read in alot of threads that guys where able to just swao the gears and use the same shims and they where perfect, even the back lash was right on too.

anybody know of this? I have my differenctial out of my car and up on the work bench awaiting new gears.

 

[mackey]

When I purchased my FRPP Gears they came with new spacers and shims... Why put the old ones back in? They would be worn down some which isn't too good for the rearend.

 

[manpowermustang]

I can see the pinion shim wearing out but not the carrier ones, there no movement to let this occur.

Anyways, I was more concerend w/ what I read from many post and crap on people using these gears and having them set up perfect w/ the stock shims.

Well'p?????????

 

[green]

that might be allright to do but i would throw in the new shims to be safe

 

[manpowermustang]

any other gear heads?

 

[89MustangGX]

I believe the pinion setup is most of the time the same, but the carrier shims need to be checked.

I'd check them all anyway with the amount of work involved in tearing it back apart when you realize it's not right.

 

[manpowermustang]

Ill still use marking compomd to check them. I just ask this cause I rather do all th e work on my car, Ill pay to have a bearing pressed but thats pushing it. I did all the work on my motor from machining it to assemablay. I feel this is the way to know your car.

Anyways I just heard from so many that you can do it, meaning if you use Ford gears.

 

[giddyup306]

Ive heard this alot in the past year and did a search and came across this. I heard that if you change you ring and pinion with Ford gears you can use the same spacers and shim.

Yeah you can. They don't have any wear on them. I like to reuse them that way I know it's put together the same way.

 

[manpowermustang]

So this is somrthing that is do'able?

 

[HardmanGT]

You can use the same pinion and carrier shims. 99% of the time when you use FRPP or stock Ford gears you can leave the carrier shims alone. Generally, the existing pinion shim will be used on the new pinion gear.

Here is a link for the Master Housing Dimension method

Link

 

[manpowermustang]

Thanks guys Ive good alota good feed back on this subject. I feel pretty confident on this task. Atleast the differential is up on my bench so it will be easier to work on, if I can buils and machine the motor I can do this, plus it gives me a reason to by a bearing press and a dial indicator.

Thanks,

Jason

 

[rd]

My 7.5 in axle set up ok with the stock shims, using Ford gears.

I just did a Motive gear in an 8.8, and I used a different pinion shim.

The carrier seemed fine with the stock Ford side shims, so back in they went. Got .009 in backlash.

Ran about 10 miles today and so far so good.

Its doable. I built a case spreader, but I have heard of plenty of people tapping the carrier shims back in. Crushing the crush collar seemed like it took 350 ft lbs to get started.