2001 GT Rear Differential Gear Kit HELP

[Hibouh]

Hello all!

I am working on a 2001 GT Mustang

I have purchased 10 sets of differential gears for this car and every…single…one has been incorrect. I need Help .

Here are some part numbers

Rearend TAG: S229H 3L27 88 1E11
Differential Casting: F5AW-BA

The old diff gears are all chipped up.

They are 28 spline
Have clutch packs
And
The S Spring pushing against the axle gears

 

[90sickfox]

What had been wrong with the 10 sets ? All ford 8.8 gear sets should be interchangeable from 85 to 2014. If you have the S clip then its traction lok ( limited slip- posi traction ). Some people and places send a thicker S clip to apply more pressure on the clutch pack inside the carrier. The gears the S spring holds are called spider gears. There is an order of clutch rings, spacers, and measurements involved. If unfamiliar with setting it up then it's best to order the whole traction lok already assembled. When replaced you will need to check ring gear pattern and shim accordingly if needed.

 

[Mustang5L5]

I beleive he is looking for the spider gears. Ford has the kit, but it's for 31-spline. A lot of the spider gears being sold individually are for non-limited slip diff. He needs a pair that are for a limited slip 8.8 differential.

 

[manicmechanic007]

The spider gears always only came with a carrier assembly from Ford IIRR
Unless you are going racing, then the 31 spline stuff is available
The side gears were available with some clutch pack kits
Those spiders in the 31 spline side gear kit are probably the same as the 28 spline ones?

 

[90sickfox]

The spider gears always only came with a carrier assembly from Ford IIRR
Unless you are going racing, then the 31 spline stuff is available
The side gears were available with some clutch pack kits
Those spiders in the 31 spline side gear kit are probably the same as the 28 spline ones?

They're the same except the spline count in the center.