Suspension and Chassis Questions about your suspension? Need chassis advice?

Diff oil?

Thread Tools
 
Search this Thread
 
Old Feb 3, 2001 | 07:31 PM
  #1  
gruveb's Avatar
Thread Starter
Supreme Member
 
Joined: Jan 2001
Posts: 1,116
Likes: 0
From: Rio Rico, AZ 85648
Car: 1989 IROC-1
Engine: L98
Transmission: 700r4
Diff oil?

I've got an 84 Z 28. Do I have posi? If so, how much of what type of oil does it take?

Reply
Old Feb 3, 2001 | 10:17 PM
  #2  
RB83L69's Avatar
Supreme Member
 
Joined: Jul 1999
Posts: 18,457
Likes: 16
From: Loveland, OH, US
Car: 4
Engine: 6
Transmission: 5
You might, or you might not have posi. You might have a tag that tells you; but the absence of a tag doesn't mean you don't have one. Jack the rear wheels up and put the car in park (or in gear if it's a stick), turn one wheel; if the other wheel turns the opposite way, it's not posi; if the wheel is real hard or nearly impossible to turn, then it's a posi.

I would recommend synthetic gear lube, in a thin weight like 75W-90. If you're not sure, buy yourself a couple of bottles of the GM posi additive before you bust it open just in case. It will take most of 2 quarts of lube. With the synthetic lube, more of the additive seems to be necessary. Jut put both bottles of it in if you have one, then fill it the rest of the way with gear lube.

------------------
"So many Mustangs, so little time..."
ICON Motorsports
Reply
Old Feb 4, 2001 | 09:20 AM
  #3  
ede's Avatar
ede
TGO Supporter
 
Joined: Aug 1999
Posts: 14,811
Likes: 1
From: Jackson County
i still like the pull the cover and inspect method of telling if you have posi or not ,plus you get a chance to look things over and change the gear lube.

------------------
ICON Motorsports

1st & 3rd
Reply
Old Feb 4, 2001 | 12:15 PM
  #4  
82camaro's Avatar
Supreme Member
 
Joined: Nov 1999
Posts: 2,860
Likes: 3
From: NE
Car: 82 camaro SC
Engine: 350
Transmission: 700r4
If you have the HO engine, you should have 3.73 gears and a posi.

------------------
82 camaro--original steering wheel, brake/gas pedals, seats--everything else modified
82camaro
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Hotrodboba400
Firebirds for Sale
3
Dec 10, 2019 07:07 PM
tyeo098
Tech / General Engine
38
Nov 30, 2015 06:27 PM
CatmanFS
LTX and LSX
1
Sep 19, 2015 09:00 AM
carattini
Transmissions and Drivetrain
6
Sep 10, 2015 07:46 AM
rudolphschenker
Transmissions and Drivetrain
1
Sep 4, 2015 02:41 AM




All times are GMT -5. The time now is 09:41 AM.