Minitubs and rear control arm relocation??

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Minitubs and rear control arm relocation??

Postby LSnotchback » Fri Jan 18, 2019 4:31 am

Hello guys,

I am planning to minitub my 74 notchback to get little bit more room for decent 17” tires. Nothing wild, just 2”-3” each side.

What I have understood lover control arms needs to be relocated. Should I bay new tubular arms and just make new inboard mounting points or is universal 4 link kit better? I am swapping S-10 rear axle same time with new axle brackets.

I will use the car for slalom/road course / street. So no drag race systems.
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Re: Minitubs and rear control arm relocation??

Postby Smiley » Fri Jan 18, 2019 5:07 pm

The uppers and the lowers must both be relocated as well as the springs.
A lot of work for a 2” wider tire.
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Re: Minitubs and rear control arm relocation??

Postby LSnotchback » Sat Jan 19, 2019 6:11 am

I know it is a big job. I am looking for a sleeper look with little bit wider wheels. Allso want to keep backseat
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Re: Minitubs and rear control arm relocation??

Postby cosvega76 » Sat Jan 19, 2019 8:49 am

I was able to fit a 17"x8" wheel and a 245/40-17 tire inside the stock wheel well on a '73 Vega.


Chuck
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Re: Minitubs and rear control arm relocation??

Postby hammerdown7 » Sat Jan 19, 2019 10:34 am

Here is Chuck's thread when he advertised his car for sale, good pictures to give you ideas.

viewtopic.php?f=5&t=46124
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Re: Minitubs and rear control arm relocation??

Postby Smiley » Sat Jan 19, 2019 3:52 pm

Moving the lower control arms inward you will loose the ability to use a stock swaybar.

I would use a small web Ford 9 inch for a mini tub job, the stamped housing is better for relocating the upper control arm brackets and the 9 inch uses pressed on wheel bearings instead of C-clips.
GM rear end housings have a cast center with the tubes pressed in, it is harder to weld the upper control arm brackets to a casting.

Here are 2 mini tub projects using the stock 4 link suspension:

Speedphreak
viewtopic.php?f=3&t=27198

KZVEGA sectioned a bit more of the floor moving the whole spring pocket and control arm mount areas inwards as units
viewtopic.php?t=40850

S10 rear end with Vega upper control arms in stock location, see how close they are to the cast center section.
IMG_1095.JPG
IMG_1095.JPG (222.48 KiB) Viewed 316 times
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