Suspension and Chassis Questions about your suspension? Need chassis advice?

Torque arm clearance

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Old Nov 17, 2013 | 11:50 AM
  #1  
grover85's Avatar
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From: New Germany, MN
Car: 1986 Iroc
Engine: 5.3
Transmission: 4L80E
Axle/Gears: 9 Inch w/ 3.55
Torque arm clearance

I have a quick performance rear in my car with Wolfe adjustable spring perches. My problem is the torque arm bracket hits the tunnel when the suspension compresses. My plan is to raise the tunnel for clearance. Just wondering if anyone else has had this problem. Car has 15x10 wheels with 6.5 back spacing and 28x11.5 et streets on it. Pick shows where I am trying to set ride height.
Attached Thumbnails Torque arm clearance-image.jpg  
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Old Nov 17, 2013 | 12:56 PM
  #2  
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Re: Torque arm clearance

Couldn't say about that particular combo; but LOTS of aftermarket rear/TA combos have a similar problem. (btdtgtts)

Best plan would be to simply look at where there's clearance issues, examine the surrounding carefully both inside and underneath the car, and make delicate and finely-tuned calibrated optimizations with about a 20-lb BFH.
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Old Nov 17, 2013 | 01:50 PM
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From: New Germany, MN
Car: 1986 Iroc
Engine: 5.3
Transmission: 4L80E
Axle/Gears: 9 Inch w/ 3.55
Re: Torque arm clearance

I understand allot of them hit the side of the tunnel but mine hits the top. Like bfh is not going to be enough.
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Old Nov 18, 2013 | 12:45 PM
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From: CT
Car: 1984 Trans Am
Engine: 355
Transmission: T-56
Axle/Gears: 10 Bolt, Torsen Diff, 3.73's
Re: Torque arm clearance

You know what they say...when in doubt get a bigger...you know...hammer.

In all seriousness, it should clearance itself before too long. You may have to deal with some banging for a little while, but eventually you should be fine.
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Old Nov 18, 2013 | 04:38 PM
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//<86TA>\\'s Avatar
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Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Re: Torque arm clearance

If it hits the top you cant do much aboit it except cut the floor and make some room. Or you have to raise the ride height to compensate.
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Old Nov 21, 2013 | 01:19 PM
  #6  
grover85's Avatar
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From: New Germany, MN
Car: 1986 Iroc
Engine: 5.3
Transmission: 4L80E
Axle/Gears: 9 Inch w/ 3.55
Re: Torque arm clearance

Raising ride height would be the easiest solution. But when ride height goes up coolness goes down. In all seriousness I think I am going to cut up the floor.
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Old Nov 21, 2013 | 05:02 PM
  #7  
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From: qualicum beach b.c.
Car: 18 chevys,2 beaumonts,and a vw beet
Engine: 283,305,327,350,383,396,400,427,468
Transmission: m21,m20,m22,powerglide,turbo350
Axle/Gears: lots
Re: Torque arm clearance

don't cut it up what do you think it is a mustang or something. all you will do is end up perched on every speed bump and it will drive like a shopping cart
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Old Nov 21, 2013 | 07:53 PM
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From: New Germany, MN
Car: 1986 Iroc
Engine: 5.3
Transmission: 4L80E
Axle/Gears: 9 Inch w/ 3.55
Re: Torque arm clearance

Well since its more of a race car and has mini tubs, cut up core support, motor plate i am not to worried about cutting it up.
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Old Nov 23, 2013 | 01:17 PM
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From: Charlestown, IN
Car: 1971 Camaro
Engine: 427
Transmission: TKO600
Axle/Gears: 3.73
Re: Torque arm clearance

The ta hits before anything else? Tires, etcc.. Do you still have bumpstops?
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Old Nov 23, 2013 | 10:21 PM
  #10  
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From: New Germany, MN
Car: 1986 Iroc
Engine: 5.3
Transmission: 4L80E
Axle/Gears: 9 Inch w/ 3.55
Re: Torque arm clearance

Originally Posted by Johnny Blaze
The ta hits before anything else? Tires, etcc.. Do you still have bumpstops?
Yes it hits before anything else. No bump stops due to mini tub. As it sits there is about 2-2.5 inches from the upper torque arm mount to the tunnel.
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