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Rear suspension and brakes

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Old Apr 26, 2022 | 09:13 AM
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midlifecrisis8's Avatar
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Rear suspension and brakes


I bought my 91 Z28 about 6 months ago. It's got relatively low miles (53k), but behind the rear wheels looked terrible. This was my first project on this car, cost about $700 and I couldn't be happier with the results.

1) new sway bar and end links
2) new panhard bar
3) new control arms
4) new drum breaks, wheel cylinders and drums
5) new brake lines
6) cleaned and painted the wheel well
7) new springs (lowered 1.25”)
8) new shock
9) lots of sanding and painting
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Old Apr 26, 2022 | 10:01 PM
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From: Salt Lake City
Car: 1987 iroc convertible
Engine: 5.0
Transmission: 5 spd
Axle/Gears: 3:45
Re: Rear suspension and brakes

Looks nice!! What lowering springs did you go with??
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Old Apr 27, 2022 | 08:05 AM
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Re: Rear suspension and brakes

Thanks Mike! All the fantastic people making thirdgen YouTube videos really helped me. Don't get me wrong it was a lot of work, but all the parts are relatively easy to change. The only issues I came across was removing the rusty nuts. I had to cut about half of them off. The lowering springs I got were BMR. I went with them based on online reviews and the price.
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Old Apr 27, 2022 | 07:58 PM
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From: Salt Lake City
Car: 1987 iroc convertible
Engine: 5.0
Transmission: 5 spd
Axle/Gears: 3:45
Re: Rear suspension and brakes

Originally Posted by midlifecrisis8
Thanks Mike! All the fantastic people making thirdgen YouTube videos really helped me. Don't get me wrong it was a lot of work, but all the parts are relatively easy to change. The only issues I came across was removing the rusty nuts. I had to cut about half of them off. The lowering springs I got were BMR. I went with them based on online reviews and the price.

Share a picture if you have it available. Thanks again
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Old Apr 27, 2022 | 08:36 PM
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Car: '83 Firebird (T/A Clone)
Engine: 350 with L-69 components
Transmission: 700R-4, 2000 RPM stall converter
Axle/Gears: 10-bolt/3.73 ..
Re: Rear suspension and brakes

Don't forget to paint the brake drums, or else they'll look like the old ones in a short time...
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Old Apr 28, 2022 | 07:17 AM
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Re: Rear suspension and brakes

Good advice T.L.! Thanks!
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Old Apr 28, 2022 | 09:09 AM
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Re: Rear suspension and brakes

Kind of amazing what a bit of detail work will make on an old third gen, looks great. I usually use some VHT clear on brake drums to keep them looking new for a good while.
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Old Apr 29, 2022 | 12:30 PM
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Re: Rear suspension and brakes

Great advice tom3! Thanks!
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Old Jul 1, 2022 | 10:01 AM
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Car: 1987 Chevrolet Camaro IROC-Z
Engine: 305 TPI
Transmission: 700R4
Axle/Gears: 2.73 posi
Re: Rear suspension and brakes

That turned out great! Did you use BMR for the other suspension components? I assume adjustable because of the lowering? Poly ends or swivel ends? Thanks!
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Old Jul 1, 2022 | 11:22 AM
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Re: Rear suspension and brakes

Thank you! And yes! BMR adjustable panhard bar and some LCARBs to boot!
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Old Jul 14, 2022 | 07:21 AM
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Car: 1991 BandittII Firebird
Engine: 5.7 HSR
Transmission: 700R4
Axle/Gears: 3.27 9 bolt
Re: Rear suspension and brakes

Did you re-center the rear end after the lowering spring install?
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Old Jul 14, 2022 | 07:45 AM
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Re: Rear suspension and brakes

Yeah. I didn't realize that I needed to do that until someone on here told me though haha! I took off the old panhard bar and replaced it with an adjustable one and then adjusted it until the wheels were centered in the well. I also put on some LCARBs.
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Old Jul 14, 2022 | 09:14 AM
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Re: Rear suspension and brakes

It came out nice, good work. I used Rustoleum Industrial paint, Aluminum color, on my drums and they look great even 2 yrs. down the road.
If you can take a pic of the car on the ground. I am thinking on lowering just the rear of my car like you did and would like to see how yours turned out.
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Old Jul 14, 2022 | 12:45 PM
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Re: Rear suspension and brakes

The top photo is the before. The middle is the after (tried to get the same angle and position). And the third is a side shot so you can better see what the lower it looks like. I was wrong about the springs in my initial post though. They are 1.75" lower, not 1.25". I personally like the look of only the rear end being a little lower and I feel that 1.75" was just about perfect.


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Old Jul 14, 2022 | 01:17 PM
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Re: Rear suspension and brakes

Originally Posted by Mike Jendrycka
Share a picture if you have it available. Thanks again

Top is before, middle is after (tried to get the same angle) and the last is also after but a good profile shot. I personally like the way the rear lowered only looks.
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