Stock Posi Unit or not?
04-22-2004, 08:38 PM
#1
Senior Member
Thread Starter
iTrader: (1)
Join Date: Nov 2003
Location: San Lorenzo, California
Posts: 574
Likes: 0
Received 1 Like
on
1 Post
Car: 1987 Firebird Trans AM
Engine: 383 TPI...very soon
Transmission: TH700R4
Stock Posi Unit or not?
So I cracked open the case of a rear end I am planning on swapping into my car pretty soon. I looked at the Posi unit, and something got me thinking about it... I thought stock Posi Units were Clutch and Cone, with no gears inside... is that correct? When I pulled the cover, there was no gasket, someone had used silicone sealant on the cover... someone has been inside here before, maybe it was just an oil change, or maybe something else was changed? Does this unit look stock?
What do you guys think? And my final question, do I have to run GM Posi Additive with this unit?
What do you guys think? And my final question, do I have to run GM Posi Additive with this unit?
04-22-2004, 09:42 PM
#3
Senior Member
Thread Starter
iTrader: (1)
Join Date: Nov 2003
Location: San Lorenzo, California
Posts: 574
Likes: 0
Received 1 Like
on
1 Post
Car: 1987 Firebird Trans AM
Engine: 383 TPI...very soon
Transmission: TH700R4
Ok good to know.. but is my Posi Unit a stock one? Anyone know? Has anyone seen a stock one which looks the same?
Last edited by TheMysticWizard; 04-22-2004 at 11:54 PM.
04-23-2004, 07:48 AM
#5
Supreme Member
Join Date: Jul 1999
Location: Loveland, OH, US
Posts: 18,457
Likes: 0
Received 15 Likes
on
15 Posts
Car: 4
Engine: 6
Transmission: 5
Yes that is a stock one. It's actually made by Auburn.
The clutches don't eliminate the need for side gears and spider gears. There still have to be gears in a posi, along with the clutches of whatever type.
Yes it needs posi additive.
Silicone instead of a gasket is fine. The paper doesn't really doesn't do much of anything.
The clutches don't eliminate the need for side gears and spider gears. There still have to be gears in a posi, along with the clutches of whatever type.
Yes it needs posi additive.
Silicone instead of a gasket is fine. The paper doesn't really doesn't do much of anything.
Thread
Thread Starter
Forum
Replies
Last Post
hectre13
Engine/Drivetrain/Suspension Parts for Sale
2
12-11-2023 08:14 AM
ambainb
Camaros for Sale
11
04-25-2016 09:21 PM
hectre13
Engine/Drivetrain/Suspension Parts for Sale
7
08-26-2015 08:17 AM
