Stock Differential and gear swap out?

[popeye]

Ok I am just about at the end of my build and funds are on fumes.
I have a 2012 3.7 with the 2.73 gears and want to swap them out to a 3.55. I have an entire rear end out of a 2012 Gt500 with the 3.55 gears in it. Axle tube is tweaked so i cant swap out the entire rear. Having the better carbon fiber discs in the diff I want to just swap out the entire differential assembly and gear.
I myself can swap the assemblies and was wondering since its the entire assembly how little I can get away with on the swap.
I would love to just swap shims and assembly from one to the other and be good to go but im not sure if it will swing. Being that the rears are of the same year they must be very close to the same tolerances. I know the short answer is replace all bearings and follow the standard gear swap proceedure but I just cant pay to have someone do it right now.
So what I am asking is what I can get away with doing myself. Which is pretty much a parts swap.
Anyone?

Sent from my SAMSUNG-SGH-I337 using Tapatalk

 

[AutoXRacer]

You can't really just swap parts. Being that you are installling the parts into a totally different housing, you will need to re-shim everything.

There have been forum members that have swapped their own gears with a youtube video. DiMora was one of them which successfully swapped gears.

Why not just wait and swap gears when you have the funds?

 

[RED09GT]

Do you have access to a hydraulic press? At the bare minimum, you need a new pinion nut and a crush sleeve or crush sleeve eliminator. I'd strongly suggest the eliminator.
You may get lucky and be able to just swap the shims from your diff but things need to get measured or things can go very wrong.

awesome autocorrect malfunctions brought to you by tapatalk

 

[skwerl]

Years ago I swapped gears into my 88 F150. I didn't have any way of measuring and didn't really understand the process so I just tossed the shims and stuck the gears in. Everything worked fine for about a year and a half, then one day I whipped a U turn and blew my spider gears out the rear cover.

 

[popeye]

You can't really just swap parts. Being that you are installling the parts into a totally different housing, you will need to re-shim everything.

There have been forum members that have swapped their own gears with a youtube video. DiMora was one of them which successfully swapped gears.

Why not just wait and swap gears when you have the funds?

Well the manifold I will be running will need some gear to run well. Guess I will have to wait or sacrifice something else to get it done.

Sent from my SAMSUNG-SGH-I337 using Tapatalk

 

[popeye]

Do you have access to a hydraulic press? At the bare minimum, you need a new pinion nut and a crush sleeve or crush sleeve eliminator. I'd strongly suggest the eliminator.
You may get lucky and be able to just swap the shims from your diff but things need to get measured or things can go very wrong.

awesome autocorrect malfunctions brought to you by tapatalk

No one off hand has one that I know of, for that matter I am I North east Pa and no one seems to want to swap gears out or has any experience at it.

Sent from my SAMSUNG-SGH-I337 using Tapatalk

 

[torchred]

The 8.8 is REALLY simple to work on in terms of rearends.......a few years back I did my own gear swap using USED 3.73 gears into a 3.08 geared fox body. The trick to doing the ghetto no measurement method is to buy used gears that already have the bearing install on pinion, then reinstall the old crush sleeve and torque it up till its "snug." I did this on my 88 Fox and the gears worked perfect and never made any noise years afterward....That being said, I would NEVER trust doing some half-ass stuff like that to my newer s197 mustang. I paid a local guy a couple hundred bucks to put my 4.10s in....So yeah, swapping stuff is doable if you are on an extreme budget, measure everything out with your harbor freight micrometer, and driving a beat-up s*** box, but if you spent money on a newer 2012 mustang I'd imagine you have some coin to pay a gear install company to install stuff properly....just MHO.

 

[popeye]

The 8.8 is REALLY simple to work on in terms of rearends.......a few years back I did my own gear swap using USED 3.73 gears into a 3.08 geared fox body. The trick to doing the ghetto no measurement method is to buy used gears that already have the bearing install on pinion, then reinstall the old crush sleeve and torque it up till its "snug." I did this on my 88 Fox and the gears worked perfect and never made any noise years afterward....That being said, I would NEVER trust doing some half-ass stuff like that to my newer s197 mustang. I paid a local guy a couple hundred bucks to put my 4.10s in....So yeah, swapping stuff is doable if you are on an extreme budget, measure everything out with your harbor freight micrometer, and driving a beat-up s*** box, but if you spent money on a newer 2012 mustang I'd imagine you have some coin to pay a gear install company to install stuff properly....just MHO.

Well I paid cash for a light wreck and have done all the work myself and tons of custom and mods as I went. Im just getting cheap cause im tired of not driving it and really want it finished. Im sure I will break down and pay for it but the swap seems simple ive just never done one yet.

Sent from my SAMSUNG-SGH-I337 using Tapatalk