Differential Help

[MikeC]

I opened up my new (used) 03 IRS differential to have the cover plate modified for use on my car (94 RX7) and discovered that the Trac Loc is shot. The teeth on the spider gears are mangled pretty bad. So, it appears that I have to replace the Trac Loc. I am leaning towards the Detriot TrueTrac. The plan is to daily drive and occasional weekend road race or autocross.

I have a couple questions regarding changing out the diff. Since the diff is being replaced and not just rebuilt, does the ring and pinion need to be reshimmed as well which basically means a complete rebuild. Does the TrueTrac have the circlip grooves machined in for the IRS axles? Anything else that I am missing?

Aslo, I am not planning to do the rebuild myself, any suggestions on shops in the northwest suburbs?

Any help you guys could give would be appreciated.

Mike C

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[Fast99Snake]

the diff will more than likely have to be reshimmed
the truetrac will work with irs axles.
the truetrac is a phenomenal street/track diff(i run it in my car and love it)
it runs a little bit cooler than the stock clutch type diff also, just an added bonus.

 

[Fast99Snake]

speed inc can install it, and they are in the northwest suburbs

 

[Mystic Terminator]

RX7 guys need to stop buying up our spares! :BoomS:


At least you bought up one that was trashed...

 

[Fast99Snake]

ford still makes the actual t-loks units which is the part that was trashed
that pumpkin on the other hand...

their are plenty of mark8's around to steal those out of at least

 

[ShelbyGuy]

You can snag a torsen t2 for 8.8 from nearly any 4x4 light duty pickup [ranger, f150] and probably sploders too.

 

[MikeC]

RX7 guys need to stop buying up our spares! :BoomS:


At least you bought up one that was trashed...

When I bought this one, I was told it was in good working order. Opening the cover and seeing pieces of the spider gears laying in the bottom of the housing said otherwise.