AARONPARFITT

I HAVE 2002 Z28 AUTO WITH 3:42 GEARS AND STOCK DIFF. It is looking like I broke a tooth off one of the gears. Probably going to replace the diff and gears. Not sure what to get. I have Yukon gears that only had a 1 year warranty. A friend told me to go with Anburn Pro another said a detroit locker. Any thoughts?

01ssreda4

iTrader: (96)

A trutrac and a motive gear would be what I would choose. I've had good luck with the stock torsen diffs so I wouldn't be so quick to dismiss it, especially behind an auto trans.

AARONPARFITT

Thanks. I will look into that. I dont know alot about rear ends and just dont want to waist money.

Guitar

iTrader: (9)

Putting money into the 10 bolt is wasting money.

AARONPARFITT

I have a $1000 budget. Is there a non 10 bolt option?

fleetmgr

Not for a grand. New S-60 will set you back closer to $3k.

01ssreda4

iTrader: (96)

No unfourtunatly. But dont listen to people like him, I've got so many ten bolts out there getting the crap beat out of them and not breaking. A properly built ten bolt is not a bad rear end, and can go pretty fast behind an auto without a hiccup. I've got some holding abuse behind m6s too.

AARONPARFITT

I am only at 400hp with what is done to my car I have got one good idea for my cheap budget. Does anyone else have a good path for me to take? Thanks for the help.

mjs1012

iTrader: (36)

I liked blue box motives when I had the 10 bolt in my car because they were quiet. I had 2 10 bolts redone by a friend for free, but after this last one went I bit the bullet for an s60.

ssvert99

iTrader: (26)

Either Eaton clutch type or the Truetrac diff and Motive or US Gear ring and pinion set. I may suggest a solid pinion bearing spacer and a LPW rear girdle cover.

Give us a call... we have all the right parts and the best prices as well!

dailydriver

The Truetrac is definitely stronger than the stock Torsen T-2, but not much more bias than the stocker, sadly enough.

The Eaton Posi, although a different type of diff than the two above, is also very strong, and has more bias than both of them.

guppymech

iTrader: (7)

Is your car a A4 or M6? If it's a A4 then I guess you'll be ok with the 10 bolt like ssred said. I second the recommendation of a Eaton Truetrac. I had a Auburn that wore out in a 10 bolt that I unfortunately put money in....fool me once...not twice, went with a S60 and didn't look back.

AARONPARFITT

It is an A4 with a 2600 stall. The stall don't seem to do much but I have it.

madmike9396

iTrader: (29)

Motive gear

Dan

iTrader: (1)

My motives took a dump at 4,000 miles for some reason..They all of a sudden started whining like a bastard. I was told that I probably was unlucky & got a bad set of gears..I just had Yukons installed. I have the Eaton TruTrac also.

AARONPARFITT

Finley got the cover off the diff. It is in bad shape. The Yukon gears did not hold up very long about 6000 miles. I think it will be motive gears this time.

AARONPARFITT

I got the parts in. Eaton true track, motive 3.42 gears, and motive bearing kit.

dlandsvZ28

I installed motive gears along with a solid pinion spacer but added an LPW brace kit as well. I went from 3.73 gears back to 3.23 gears which will also add some strength because the teeth on 3.23 gears are just a little bit thicker than the 3.73's. I wish now that I would have welded the axle tubes too but was unsure about the skills of the welder and didn't want to make matters worse with bad welds.

With my ATI D1 at only 10 lbs I have 565 to the rear wheel with a Yank 3450 blower stall and Performabilt Level III. So far holding up well.

https://www.flickr.com/photos/183593...7630765750292/

https://www.flickr.com/photos/183593...57623345499537

dannyz

Your an m6.
Totally different animal.

erickcastillo95

iTrader: (1)

just installed a true trac and 4.11s on my truck so far i am very satisfied with the true trac