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498 Posts
Howdy,
I have a rotary-powered (12A) 71 GT (in progress).
I've been trying to figure out what rear end to use. Possibilities include:
This is what is kicking around the local wrecking yards.
Early 80's Mazda Rx7 GSL SE - Disk brakes, width could be accomodated by FWD high offset wheels or narrowing. Flange to Flange 57.125" Seems relatively easy to mount, as it's similar to the stock Opel.
IRS:
Mid to late 80's BMW 325 - disk brakes, only 3 mounting points for the whole thing! (2 for moustache bar, 1 for diff.) Problem is, the mounting points are 48" apart, and the Opel just ain't that wide. mounting points may be a problem. Flange to Flange 56"
78 280Z - drum brakes, very narrow mounting points, driveshaft is 3/4" offset towards right side of car. nice and narrow, but Macpherson strut, have to build some towers? Flange to Flange 54.5"
Flange to Flange distances refer to wheel mount flanges.
So... anybody had any success/horror stories with any of these units?
I don't care about hacking up the rear floor pan, the car is so far from stock.
Thanks,
James
I have a rotary-powered (12A) 71 GT (in progress).
I've been trying to figure out what rear end to use. Possibilities include:
This is what is kicking around the local wrecking yards.
Early 80's Mazda Rx7 GSL SE - Disk brakes, width could be accomodated by FWD high offset wheels or narrowing. Flange to Flange 57.125" Seems relatively easy to mount, as it's similar to the stock Opel.
IRS:
Mid to late 80's BMW 325 - disk brakes, only 3 mounting points for the whole thing! (2 for moustache bar, 1 for diff.) Problem is, the mounting points are 48" apart, and the Opel just ain't that wide. mounting points may be a problem. Flange to Flange 56"
78 280Z - drum brakes, very narrow mounting points, driveshaft is 3/4" offset towards right side of car. nice and narrow, but Macpherson strut, have to build some towers? Flange to Flange 54.5"
Flange to Flange distances refer to wheel mount flanges.
So... anybody had any success/horror stories with any of these units?
Thanks,
James