Rear Suspension
Rear Suspension
Is there anyone that can make a post like front suspension 101 the one at the top of suspension and chassis title, talking about rear suspension? Also if someone can inform me on what parts I can refurbish and what ones I should buy new?
Joined: Sep 2005
Posts: 27,819
Likes: 2,406
Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: Rear Suspension
Buy new:
Have done by competent welder (if you're not):
Takes nearly as long to jack the car up and let it back down as it does to change out those parts. Except of course for the welding. And of course, dealing with any rusted-up frozen hardware, and repairing the upper shock mounts if they're punched out of the sheet metal.
Not much of a sticky, but then, it's not much work or danger or $$$ either.
- LCAs
- Shocks
- Springs
- Sway bar bushings & end links
- Panhard bar
Have done by competent welder (if you're not):
- LCARBs
Takes nearly as long to jack the car up and let it back down as it does to change out those parts. Except of course for the welding. And of course, dealing with any rusted-up frozen hardware, and repairing the upper shock mounts if they're punched out of the sheet metal.
Not much of a sticky, but then, it's not much work or danger or $$$ either.
Joined: Aug 2013
Posts: 4,795
Likes: 895
From: MICHIGAN
Car: 1988 Trans Am
Engine: L03
Transmission: 700R4
Axle/Gears: 10 Bolt 2.73 Open
Joined: Sep 2005
Posts: 27,819
Likes: 2,406
Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: Rear Suspension
Happens to all of em sooner or later. Mine lasted until about 250k miles, when it started making a strange banging noise behind the rear seat on one side when going over bumps, and seemed like the shock on that side wasn't doing anything. Popped the seat out and pulled back the carpet to change out the shocks, and found that. The other side wasn't far from doing the same thing.
I had somebody weld acoupla big washers in place of the sheet metal that had broken out. Then finished putting the new shocks in.
What causes it is, poor design. The shock is mounted to a flat place stamped in the sheet metal, and as it does its job damping the car's (and axle's) bouncing motions, it flexes the sheet metal. Sooner or later the metal fatigues.
Take a look. Yours might already be that way and you don't even know it.
I had somebody weld acoupla big washers in place of the sheet metal that had broken out. Then finished putting the new shocks in.
What causes it is, poor design. The shock is mounted to a flat place stamped in the sheet metal, and as it does its job damping the car's (and axle's) bouncing motions, it flexes the sheet metal. Sooner or later the metal fatigues.
Take a look. Yours might already be that way and you don't even know it.
Joined: Aug 2013
Posts: 4,795
Likes: 895
From: MICHIGAN
Car: 1988 Trans Am
Engine: L03
Transmission: 700R4
Axle/Gears: 10 Bolt 2.73 Open
Re: Rear Suspension
I will check it out. Thank for the info. I'm hoping that at 58k easy miles, it's still fairly sound. But it might be a place to think about reinforcing when I put in new rear shock.
Supreme Member




Joined: Sep 1999
Posts: 2,985
Likes: 811
From: Colorado USA
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
Yep, they're cheap-a$s POS cars, but we love 'em...
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