Which Differential?

[Twisted01GT]

I am looking to upgrade my differential but not sur which one. The tru-trac looked good because of no clutches to ever replace, Auburn looked good because of no clutches and if you ever need to have it rebuilt you send it back and they send you a whole new unit for about the same price as the rebuild kit for a differential that has clutches. I not sure about the Eaton, it seems pretty strait forward, if it ever needs to be rebuilt you order the kit and do it so not a lot of down time.

I do like the 1/4 mi but I want something for primaraly autocross and some roadracing.

 

[Dark Knight GT]

Do you have an automatic or a five speed ?

 

[Twisted01GT]

I have a 5 speed.

 

[Dark Knight GT]

Ok. Are you planning on doing a fair amount of racing ? Are you also planning on using DR's or slicks ?

 

[GinoGT]

Eaton.

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[Twisted01GT]

I do a fair amount of racing. I would like to do more. I will not be using slicks no DR's in the near future. It is a daily driver.

GinoGT why do you suggest an Eaton?

 

[GinoGT]

www.modulardepot.com

That's what I would buy. I haven't heard of anyone breaking an Eaton, as opposed to the Auburns.

 

[Twisted01GT]

Really? I have not heard anything about any of them and I can not find any info except for dealers that are pusing their product line. Does one make a better autocross/roadrace vs drag race differential?

 

[Dark Knight GT]

Well, if you want the best, Eaton and Moser probably make the best. However, if you're not going to be using DR's or slicks, a standard OEM 31 spline Ford differential might do just fine. You can buy one of those at www.stangstore.com for under 200 bucks.

 

[Twisted01GT]

I know the Ford differential with 31 spline axles will be stronger but will the differential be stronger as well? Will it also perform better than the stock differential? I hate it when you take a corner at speed and there is not enough traction on the wheels to accelerate out of it from. The inner wheel spins until it regains traction. Not that I do that a lot, but you can feel the wheel spin before it grabs.

 

[Ronald Jones]

Sound like you would benefit from a torque sensing diff. Do a few searches on the Torsen T-2 diff. This is the route that I'm going, also checkout www.reiderracing.com

 

[99StanGT]

No to the truetrac

I'm swapping in a new rear end to my 99 GT I went with an auburn and strange axles. I would've gone Eaton but there backordered a month. The truetrac for the 8.8's are notorious for breaking due to the end cap on the differential thats held on by 4 bolts. Hard racing loosens the bolts and the diff comes apart possibly ruining the housing.

 

[Twisted01GT]

Good thing you told me about the trutrac, I was just about to buy one. In theory it sounds great. Nothing to rebuild or wear out. It sounds like I might start looking harder to the Eaton or Torsen T-2.