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How would you center a 9" in the wheel well??

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Old 07-06-2023, 10:29 PM
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Car: 1991 camaro Z28
Engine: Forged 370" LS turbo s480
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Axle/Gears: 35 spline 3.25 gears
How would you center a 9" in the wheel well??

Looking for some input on how y'all would so this. So I've got to move the rear end forward about 3/8" to get it centered in the wheel wells. I've got single adjustable control arms on order. Question is how would a guy accomplish this coming from stock length control arms without unbolting both sides possibly creating a mess?? Or unbolt one side and loosen the other to get some wiggle room??

Thanks for the input everybody
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Old 07-06-2023, 10:47 PM
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Re: How would you center a 9" in the wheel well??

Lay the new arm next to the old and line up the mounting holes and then shorten the new by about 3/8 inch. If you have to make more adjustments then you're going to have to unbolt it.

Double adjustable arms let you keep it on car while making adjustments.
Old 07-06-2023, 10:57 PM
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Car: 1991 camaro Z28
Engine: Forged 370" LS turbo s480
Transmission: Built 4L80e Circle D converter
Axle/Gears: 35 spline 3.25 gears
Re: How would you center a 9" in the wheel well??

Originally Posted by QwkTrip
Lay the new arm next to the old and line up the mounting holes and then shorten the new by about 3/8 inch. If you have to make more adjustments then you're going to have to unbolt it.

Double adjustable arms let you keep it on car while making adjustments.
Yea I do get that part for sure but it's actually bolting the shortened arm into the car, would there be enough wiggle room to get it with the other side still at stock length?? I guess I'll find out when these pieces get here. Sometimes I make things seem harder in my head then they actually are

The double adjustable would be nice but it seems like everything is out of stock or two months out. I got these from founders performance a few days away on eBay
Old 07-07-2023, 01:27 AM
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Re: How would you center a 9" in the wheel well??

Originally Posted by thatsupnow
Yea I do get that part for sure but it's actually bolting the shortened arm into the car, would there be enough wiggle room to get it with the other side still at stock length??
Oh ya, I think so. Getting the axle droop in the sweet spot is the key. Like anything, first one will be a bugger and take 2 hours and then you'll be a pro and next one will take 1 minute.

In my experience it's easier to install to body side first and then the axle. That's my personal preference anyway with my combination of parts.

Last edited by QwkTrip; 07-07-2023 at 02:28 AM.
Old 07-07-2023, 06:28 AM
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Re: How would you center a 9" in the wheel well??

I little trick I did was use a rachet strap hooked to the axle and the trans mount. Use it to pull the axle forward to line up the bolt holes.
Definitely bolt the body side first and do one at a time. I used non adjustable arms and I still needed to pull the axle forward for the holes to line up.
Old 07-07-2023, 12:24 PM
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Engine: Forged 370" LS turbo s480
Transmission: Built 4L80e Circle D converter
Axle/Gears: 35 spline 3.25 gears
Re: How would you center a 9" in the wheel well??

Originally Posted by QwkTrip
Oh ya, I think so. Getting the axle droop in the sweet spot is the key. Like anything, first one will be a bugger and take 2 hours and then you'll be a pro and next one will take 1 minute.

In my experience it's easier to install to body side first and then the axle. That's my personal preference anyway with my combination of parts.
Ahahaha oh man I don't know how many times I've been in situations like that

Originally Posted by vinny R
I little trick I did was use a rachet strap hooked to the axle and the trans mount. Use it to pull the axle forward to line up the bolt holes.
Definitely bolt the body side first and do one at a time. I used non adjustable arms and I still needed to pull the axle forward for the holes to line up.
Sweet yea I was also thinking ratchet strap too and get the chassis side bolted up first
Old 07-07-2023, 01:29 PM
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Re: How would you center a 9" in the wheel well??

The only reason you end up fighting getting things aligned is because of the swing path of the torque arm. If you just attach front torque arm last then nothing will fight you.

Last edited by QwkTrip; 07-07-2023 at 01:39 PM.
Old 07-07-2023, 01:34 PM
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Car: 1991 camaro Z28
Engine: Forged 370" LS turbo s480
Transmission: Built 4L80e Circle D converter
Axle/Gears: 35 spline 3.25 gears
Re: How would you center a 9" in the wheel well??

Originally Posted by QwkTrip
The only reason you end up fighting getting things aligned is because of the swing path of the torque arm. If you just attach front torque arm last then nothing will fight you.
I was actually planning on moving my torque arm up at the front to hit the tires a bit harder so I guess that settles it. Setting the pinion angle with this 2 piece race arm is a breeze, 2 jam nuts and give it a twist with my hand.
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