This the right Detroit Locker ???

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05-03-2009, 12:18 AM
r.barn

This the right Detroit Locker ???

Someone help make sure this is the right Detroit True-Trac for
my '02 Tahoe ??? ... before I order it.

Detroit Locker 913A481 - Eaton Detroit Truetrac Differentials

Thanks

and what do you think for my turbo project
3.73's or 4.10's ???

I am running a 30" tire I think.
05-03-2009, 12:27 AM
WARLOCK

Get one from Rons machine on ebay. And I would think 4.10s would be a little much for a turbo setup.
05-03-2009, 10:02 AM
r.barn

Bump

Is that the right True-Trac or not ????
05-03-2009, 10:23 AM
GasGuzzler

Yes, that's the one I'd pick.
05-03-2009, 10:25 AM
SLO TRUCK

yup thats it, also the 4.10's to low of a gear, would be better off with 3.42, or 3.73's
05-03-2009, 10:36 AM
GasGuzzler

It is a heavy Yukon with big wheels and a 4.8. Maybe 3.73's are better.
05-03-2009, 10:46 AM
r.barn

Quote:

Originally Posted by GasGuzzler

It is a heavy Yukon with big wheels and a 4.8. Maybe 3.73's are better.

What is stock gear thats in there now ?
05-03-2009, 10:52 AM
GasGuzzler

Probably 3.42 or 3.73. Post up the G codes on the SPID label in the glove box.
05-03-2009, 11:18 AM
r.barn

Well I got this truck as a company car few years back from my Dad
who I was working with at the time.

I know him, and he would have ordered the most base base model he
could. ..... down to the 4.8 engine

so I know it doesnt have 3.73's now.

Seems like go to a 3.73 with the oversized tires I have would just
put me back at a stock 3.42 "feel" and wouldnt really be much of
an upgrade.

I know they make a 3.90 gear for my Stang now, Anyone seen a 3.90
for our trucks ???
05-03-2009, 08:16 PM
gtxbrad

GT4 - 3.73
GU6 - 3.42

If i remember correctly
05-03-2009, 08:22 PM
r.barn

I did some playing around with rear gear calculators.

with my 275 75R16 tires thats a 32" tire vs 30" for stock.
4.10 gears with my 32" tires would give similar ratio to 3.73's with stock tire size.

So going to go with 4.10's and that True-Trac dif.
05-03-2009, 09:30 PM
GasGuzzler

:thumb: sorry to disagree with those that actually have experience with this stuff but it should be a fun combo on a heavy SUV with a 4.8.
05-03-2009, 10:00 PM
gtxbrad

ya...I think 4.10's would be fine. I've got 3.73's with like 27-8ish tires and it would still be happy with a lil lower gear. I mean were not cursed by the ole 3speeds anymore. so take advantage of it.