Charles Goin wrote a good article about this back in the day. None of the old links work, so I can't find it again. Maybe he will chime in and give us all a refresher of what he accomplished. It's basically just slotting the mounting holes slightly to get it to bolt up to the axle flange.
I hope I'm not beating this subject to death with some of you guys. I have read that with some modification you can swap the rear discs off a pre-87 non-turbo Impulse to fit an Opel GT. Anyone have any tech info to share on procedure? Is it more practical to shell out $3000 to OPS? Cliff
Aaarrgg Allright ill be honest im getting a little frustrated. I am looking for an isuzu impulse to take the rear end from, both for the brakes and the diff, but i cannot find the answer to a simple question anywhere in previous posts. What year(s) am i looking for?? I hear an 85 will work...
So I have an Isuzu open diff for 3.67:1 and up crown gears. Does any one know if their spyders are weak like the original Opel ones? I can make an educated guess what the answer will be based on the quality I have seen of the Isuzus in general. Young Olds, you may want to take this and just weld it up. Pretty knarley for a street car though. My buddy had a full spool in his 12 bolt, 400hp Chevelle that chirped around every corner and was impossible to park in tight spaces.
Every time I get the chance to drive the manta I forget it has a welded diff, I think the wheel base and track width plays into that. I’m more worried about deeper gears at this point so welding the Isuzu diff is fine with me.