Posi swap
#1
Junior Member
Thread Starter
Join Date: Jun 2010
Location: NH
Posts: 11
Likes: 0
Received 0 Likes
on
0 Posts
Car: '86 Iroc-Z, '98 A4 Quattro
Engine: 5.0 TPI
Transmission: 700R4
Axle/Gears: 2.73
Posi swap
I plan on swapping out my 2.73 limited slip rear end for a 9 bolt posi with 3.27's. my question is do I need to change the master cylinder or was in the same in all models of the iroc?
#2
Supreme Member
Join Date: Mar 2003
Location: Florida
Posts: 4,771
Likes: 0
Received 14 Likes
on
10 Posts
Car: 1987 Black IROC-Z (SOLD)
Re: Posi swap
Swapping complete rear axles....All you will need is the Proportioning valve and the parking brake cables from the 9-bolt. The master cylinder dose not need to be replaced.
#6
Supreme Member
iTrader: (1)
Join Date: Sep 2005
Posts: 26,150
Received 1,692 Likes
on
1,286 Posts
Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: Posi swap
If the change involves a change to or from the cast-iron calipers, to or from ANYTHING else, a new combo valve will be required.
If the change is from drums to PBRs (aluminum), the existing one will work fine.
The key here is not "9-bolt" or "3.27"; it's the calipers, both the new and the old.
If the change is from drums to PBRs (aluminum), the existing one will work fine.
The key here is not "9-bolt" or "3.27"; it's the calipers, both the new and the old.
#7
Junior Member
Thread Starter
Join Date: Jun 2010
Location: NH
Posts: 11
Likes: 0
Received 0 Likes
on
0 Posts
Car: '86 Iroc-Z, '98 A4 Quattro
Engine: 5.0 TPI
Transmission: 700R4
Axle/Gears: 2.73
Re: Posi swap
I have the complete rear end. It doesnt currently have disk breaks, and the 9 bolt does
Thread
Thread Starter
Forum
Replies
Last Post
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
1992 Trans Am
Engine/Drivetrain/Suspension Parts for Sale
1
08-08-2015 08:16 PM