3rd Gen / L98 Engine Tech 1982 - 1992 Engine Related

Whats a good rear end?

Thread Tools
 
Search this Thread
 
Old Aug 31, 2007 | 10:18 PM
  #1  
85305Z's Avatar
Thread Starter
Registered User
 
Joined: Jun 2007
Posts: 74
From: Baltimore, MD
Whats a good rear end?

im looking for a good bolt on rear end. i really dont want to do any fabricating because i really dont have the equipment required for something like that.

any help would be great, thanks guys
Old Aug 31, 2007 | 10:21 PM
  #2  
mdacton's Avatar
Banned
 
Joined: Oct 2006
Posts: 4,970
From: Goochland, Va.
what for the 85?

moser and strange have nice set-ups at good prices........what rear brakes to you want to use?
Best thing is to call them,they will ask some questions and help you out
Old Sep 1, 2007 | 05:05 PM
  #3  
85305Z's Avatar
Thread Starter
Registered User
 
Joined: Jun 2007
Posts: 74
From: Baltimore, MD
yea, 85

ok ill look into that....

right now its got rear drums but id like to do a disk brake swap

thanks
Old Sep 1, 2007 | 05:47 PM
  #4  
87DJP2001's Avatar
Registered User
 
Joined: Jan 2001
Posts: 1,790
From: Florida. USA
Originally Posted by 85305Z
yea, 85

ok ill look into that....

right now its got rear drums but id like to do a disk brake swap

thanks
When you check it out also do the same for your bank account. I would say about $2500.
Old Sep 1, 2007 | 05:57 PM
  #5  
Marc 85Z28's Avatar
Registered User
 
Joined: Dec 1999
Posts: 2,022
From: MD
What do you plan to do with the car and with what kind of power?
Old Sep 1, 2007 | 09:30 PM
  #6  
85305Z's Avatar
Thread Starter
Registered User
 
Joined: Jun 2007
Posts: 74
From: Baltimore, MD
Originally Posted by 87DJP2001
When you check it out also do the same for your bank account. I would say about $2500.
haha, also good to know

Originally Posted by Marc 85Z28
What do you plan to do with the car and with what kind of power?
really im building more for the street, it wont see the drag strip to much, maybe once or twice just out of curiosity. im contemplating building a carb'd 350 or an lt-1 swap but im not sure, nore am i shooting for a specific number....hell id be happy with 300
Old Sep 3, 2007 | 07:46 AM
  #7  
Marc 85Z28's Avatar
Registered User
 
Joined: Dec 1999
Posts: 2,022
From: MD
Then stick with the 10 bolt. I'm sure some here will argue that point, but the 10 bolt can and will stand up to a little more than its given credit for. Need proof? I'm right around the corner from you and I'm going high 10s/low 11s on a 10 bolt.

If I were you I would swap in a complete with brakes 10 bolt from a 98+ car. You'll get a stronger housing, a limited slip differential, and if you get one from a 6 speed car, you get 3.42s as well. If your car originally was equipped with front disc and rear drum, you can reuse the stock master cylinder and combo valve with the LS1 rear disc setup.
Old Sep 4, 2007 | 08:30 AM
  #8  
85305Z's Avatar
Thread Starter
Registered User
 
Joined: Jun 2007
Posts: 74
From: Baltimore, MD
is that a bolt on install? i dont really have the tools to be fabricating things
Old Sep 4, 2007 | 09:10 AM
  #9  
87DJP2001's Avatar
Registered User
 
Joined: Jan 2001
Posts: 1,790
From: Florida. USA
4th gen rear with a 3:42 & disc brakes is a bolt on. However it is 4" wider overall then the 3rd gen one and you can not use the stock wheels. Also, NOTHING is a direct fit on a 3rd gen car. You always will be fabbing something up to make it work. Good luck
Old Sep 4, 2007 | 03:12 PM
  #10  
85305Z's Avatar
Thread Starter
Registered User
 
Joined: Jun 2007
Posts: 74
From: Baltimore, MD
good to know, thanks alot!
Old Sep 4, 2007 | 09:27 PM
  #11  
chevynutman's Avatar
Registered User
 
Joined: Mar 2007
Posts: 177
From: beverly,ma
if you do some hunting you can find all the parts out of third gen cars to make what you want---90 -92 has 28 spline axles instead of the 26 that you have then 28 spline posi or locker w/3.42's good for street and strip,if you get axles out of drum rearend i think you just have to grind alittle material off to get rotors on just take your time to find right combo and you won't spend too much cash for your bolt on
Old Sep 4, 2007 | 11:32 PM
  #12  
Kevin91Z's Avatar
3rd Gen Tech Moderator
 
Joined: Jun 1999
Posts: 780
From: Orange County, CA
Originally Posted by 87DJP2001
4th gen rear with a 3:42 & disc brakes is a bolt on. However it is 4" wider overall then the 3rd gen one and you can not use the stock wheels. Also, NOTHING is a direct fit on a 3rd gen car. You always will be fabbing something up to make it work. Good luck
There are many cars out there with a 4th gen rear axle and using stock 16" thirdgen wheels. They line up directly with the fenders, and if you're lowered, they might rub. But thirdgen wheels will fit easily.

The other option is a 85-89 9-bolt rear end, but the good ones are very hard to find and parts are getting scarce.
Old Sep 5, 2007 | 09:45 AM
  #13  
Marc 85Z28's Avatar
Registered User
 
Joined: Dec 1999
Posts: 2,022
From: MD
Originally Posted by Kevin91Z
There are many cars out there with a 4th gen rear axle and using stock 16" thirdgen wheels. They line up directly with the fenders, and if you're lowered, they might rub. But thirdgen wheels will fit easily.
I know appearance tastes are subjective, but don't do this! 85305Z - If you want to see how retarded this looks, I can point you to a local car...

And only some 16" stock wheels "fit"
Old Sep 5, 2007 | 10:23 AM
  #14  
Rice Killer87's Avatar
Registered User
 
Joined: Feb 2003
Posts: 1,601
From: Virginia
Put a good set of gears (Richmond) in it,as well as a posi/locker. Then find someone with a decent welder and have them weld a bead around where the axle tube goes into the center differential.

Marc,I never knew your car was that fast! Whats in that sucker??
Old Sep 5, 2007 | 10:48 AM
  #15  
Marc 85Z28's Avatar
Registered User
 
Joined: Dec 1999
Posts: 2,022
From: MD
Originally Posted by Rice Killer87
Marc,I never knew your car was that fast! Whats in that sucker??
I'm running a 10 bolt in both the cars in my sig. The 85 Z28 runs mid 12s, while the 00 TA recently went high 10s, both NA. The Z28 has a budget/economy minded 355, and the TA has an aggressive H/C 346 setup. Both cars are full weight autos and run well for the mods because the combos were well researched



All times are GMT -5. The time now is 11:05 PM.