Early Vega rear ends

Moderator: Moderators

Early Vega rear ends

Postby smoby » Sun Sep 22, 2019 12:37 pm

What year did GM start using the 7.5" rear end in the H-body? I'm building a '74 Vega wagon and I have the rear end from a '75 Monza 5.7 Town Coupe. Could used some help identifying both, hoping the Monza is a 7.5 being a factory 350 car.
smoby
 
Posts: 1
Joined: Sat Sep 21, 2019 1:13 pm


Re: Early Vega rear ends

Postby hammerdown7 » Sun Sep 22, 2019 1:24 pm

The Monza rear end is the torque arm variety. To confirm it is a 7.5 the left front side of the differential has four pass through bolt holes for the 7.5. If it is the smaller 6.5 there will be 4 threaded holes. I was looking for a picture but couldn't find one to post.

Dick
User avatar
hammerdown7
 
Posts: 3805
Joined: Mon Jun 26, 2006 7:53 pm
Location: Clawson, MI

1976 Chevrolet Vega Cosworth

Re: Early Vega rear ends

Postby Joey » Fri Nov 06, 2020 5:23 pm

Hey There,

I am about to do the exact same. I have a '74 pontiac astre and a 1980 monza posi rear end.
I do have the lower control arms, sway bar and torque arm with the monza rear end.
What would be the best solution? Welding the old astre brackets to the monza rear end to use the excisting upper control arms,
OR find a way to attach the torque arm to my (not original) volvo gearbox and find a panhard/trackbar?
Any advice is welcome, also if there are brackets or such availble.
Joey
 
Posts: 19
Joined: Fri Aug 17, 2018 12:36 pm


Return to Transmission and Driveline Tech

Who is online

Users browsing this forum: No registered users and 2 guests