Getting gears, what do I need?

[scooter3]

Finally getting around to getting gears, but what exactly do I need other then the gear set? Install kit or full bearing kit? Oil, friction modifier? The car only has 24,000 miles so I was not sure if the full bearing kit was necessary or just the install kit.

Thanks in advance!

[Stanger00]

I just dropped my car off at AZ Differential. They did everything for me when I had my rear end rebuilt.

When I first had mine installed I did a master bearing kit since my car had 50k miles. I also got the master bearing kit because the gears I bought didnt come with a shim kit. I suggest buying FRPP since they come with shims.

Stock trak-loks require friction modifier and it should be listed in your owners manual.

[BurnTire]

Finally getting around to getting gears, but what exactly do I need other then the gear set? Install kit or full bearing kit? Oil, friction modifier? The car only has 24,000 miles so I was not sure if the full bearing kit was necessary or just the install kit.

Thanks in advance!

24K isn't a ton of miles, but I would still do the full install kit as it isn't that much more money.
Many lubes have friction modifier added. Check the brand to determine if it has friction modifier built into the lube.

[SloSVO]

are you doing the gear install yourself? most shops want you to replace everything so there are no issues later.. I've changed just the ring and pinion only on my nd friends cars and had no issues.. but for peace of mind...

[trucker]

just take it to AZ Differential and let them take care of it all they do is rear ends Nate or Henery are great to deal with and they stand behind there work

[BurnTire]

This is an alignment bar in my rear end after AZ Differential supposedly straighted it out.
They had my rear end for a few weeks and failed big time.
1. Bent my studs. (They Replaced them)
2. Failed to straighten it correctly (Big chain and jack)
3. Axle tubes Leaked due to their straighten methods. (Resolved)
4. Ordered axles that were too long. (Had to machine)
5. Axle bearing failed and blew grease all over the place after a few miles. (They don't last long when he tubes are bent)




They assured me it was straight after multiple returns to the shop and telling them the axles bearing were tough to get it. I asked them of they had an alignment bar in the rear end and they said yes. Yea Right.
They also looked bad in the eyes of those who referred me to their shop.
Based on my negative experience I do not recommend AZ Differential.



Finally I took the rear end to Darryl Smith Race Cars to straighten and brace the housing. He cut the ends off and used his welding procedure to align the tubes then re-welded the ends back on. His 3.73 gear install lasted many runs. When I switched to the 3:55s the old bearings and gears still looked perfect. The rear end is still working fine after many low 10 second runs. Darryl is an excellent professional to deal with. He may not be the cheapest, but remember you get what you pay for.

[Stanger00]

Tried to save a bent axle and AZ Diff couldnt produce. Personally, I wouldnt take my stuff there for "Race" prep stuff like you had done.

My work was simple and my axle housing wasnt bent. All they had to do was install a Trac-Lok, axles, bearings, seals, set ring and pinion and throw on 3" studs. Picked my car up 2 days later and no gear whine or clunks from the rear end. I have about 1k miles on it now. Nate, also gave me 12 months to try and destroy something...everything is covered except the ring and pinion since those are not pro-gears.

I dont understand something but is it common practice to save a bent axle? I figure its the cheap way to fix it. I have little to no knowledge with bent axle tubes but I figure one would have to cut the bent tubes and re-weld them back on when they are lined up.

[SloSVO]

time to go to the track and make some 6K launches!!!!!!!!!!!!!!!!!

[BurnTire]

I dont understand something but is it common practice to save a bent axle? I figure its the cheap way to fix it. I have little to no knowledge with bent axle tubes but I figure one would have to cut the bent tubes and re-weld them back on when they are lined up.

Yes you don't understand as housing straightening is a common practice. You can take just about any used 8.8 housing and put it in a jig and the axle tubes will not be perfectly straight. You don't cut the tubes off as they pressing into the housing center section. My 9" ends were cut off not the axle tubes. A professional rear end shop will ensure that customers receive a straight housing prior to collecting the customers hard earned cash. I was referred to AZ Diff by a drag racer. AZ Diff assured me they could fix the housing. Anyone that knows me well knows I don't talk negatively about a business unless there is a legitimate reason.

Anyway below is a link on how Darryl Smith Race Cars straightens housings.
http://www.darrylsmithracecars.com/d...g%20narrow.htm

[Stanger00]

Now, if I ever have the need to have 9" axle ends welded to my car I will know where to go.