Complete overhaul somewhat
Thread Starter
Senior Member

Joined: May 2011
Posts: 855
Likes: 1
From: New Bedford MA
Car: 1988 Gta trans am
Engine: LR4 4.8
Transmission: 98-02 t56 6 speed
Axle/Gears: Bw 9 bolt (3.70’s) pbr rotors
Complete overhaul somewhat
Okay everyone it's coming close to the fall/winter season here in new England an I got big intentions on my 89 Gta trans am I'm looking to replace everything/tighten everything up I plan on dropping the rear sub frame an also the front sub-frame for all new suspension an bushing upgrades I also plan on doing either a tremic 5 speed or even the t56 swap so I wanna get all the info I need to get prepped for the job I know alot of you guys an girls have done it to ur 3rd gen or ur 4th gens so everyone help a fellow f body buddy out thanks in advance
Joined: Aug 1999
Posts: 19,282
Likes: 103
From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Thread Starter
Senior Member

Joined: May 2011
Posts: 855
Likes: 1
From: New Bedford MA
Car: 1988 Gta trans am
Engine: LR4 4.8
Transmission: 98-02 t56 6 speed
Axle/Gears: Bw 9 bolt (3.70’s) pbr rotors
Re: Complete overhaul somewhat
Okay I ment the rear end along with the trailing arms torque arm all of it i just don't know On where to start
Joined: Aug 1999
Posts: 19,282
Likes: 103
From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Supreme Member
iTrader: (2)
Joined: Sep 2009
Posts: 1,591
Likes: 5
From: WI.
Car: 1987 iroc
Engine: 383 TPIS intake, Dyno Don headers
Transmission: 700R4 w/Pro-built Auto/transgo 2-3
Axle/Gears: 3.27/3.70 borg warner 9 bolt
Re: Complete overhaul somewhat
The best advice I could give would be to get some good repair manuals, including a factory one from ebay or where ever. Chilton's, even Haynes. You can never have enough information, even from TGO.
Thread Starter
Senior Member

Joined: May 2011
Posts: 855
Likes: 1
From: New Bedford MA
Car: 1988 Gta trans am
Engine: LR4 4.8
Transmission: 98-02 t56 6 speed
Axle/Gears: Bw 9 bolt (3.70’s) pbr rotors
Re: Complete overhaul somewhat
Yea I have a least 2 Haynes manuals on the 3rd gen firebird a tpi service manual, I wanna find a actual service manual for 1989 Gta but there prob big bucks an could only be found on eBay or something like that they would help out alot
Senior Member
Joined: Apr 2006
Posts: 685
Likes: 0
From: CT
Car: 1988 Iroc
Engine: 5.7L
Transmission: '96 T56, Hurst Shifter, Mech VSS
Axle/Gears: 3.45 9 Bolt
Re: Complete overhaul somewhat
I plan on doing the same thing this winter. All new suspension, brakes, bushings and a t56 swap. Good luck man.
What information are you looking for? What is your plan for the car? Whats your budget? We need more information before we can help.
As james said, check the stickies and use the search. I'm sure you will figure out 90% of what you need to know. Then come ask specific questions if you still have some.
What information are you looking for? What is your plan for the car? Whats your budget? We need more information before we can help.
As james said, check the stickies and use the search. I'm sure you will figure out 90% of what you need to know. Then come ask specific questions if you still have some.
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Thread Starter
Senior Member

Joined: May 2011
Posts: 855
Likes: 1
From: New Bedford MA
Car: 1988 Gta trans am
Engine: LR4 4.8
Transmission: 98-02 t56 6 speed
Axle/Gears: Bw 9 bolt (3.70’s) pbr rotors
Re: Complete overhaul somewhat
well i plan on dropping the front sub frame an pulling the motor an trans out gonna do all new bushings an maybe some new front suspensions lca, sway bar, etc for the rear i plan on putting in new torque arm adjustable one, panhard bar, trailing arms, i would also like to do the termic 5 speed since its cheaper an will still be a good trans for cruising on the highway better then the 700r4 at least also new floor pans an trunk well, also a nice set of weld in sub frame connectors. i wanna do all this in a budget of 3 grand an in a time frame of at least 2 years i think it could be done quicker but ive learned that lesson not to rush a project
Joined: Aug 2006
Posts: 12,805
Likes: 107
From: Central NJ
Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Thread Starter
Senior Member

Joined: May 2011
Posts: 855
Likes: 1
From: New Bedford MA
Car: 1988 Gta trans am
Engine: LR4 4.8
Transmission: 98-02 t56 6 speed
Axle/Gears: Bw 9 bolt (3.70’s) pbr rotors
Re: Complete overhaul somewhat
i got pricing on the suspension stuff an all of the stuff that i got from summitracing came to 926.00 thats not after taxes an shipping i will also be able to get some of the stuff off of my race buddies that had 3rd gens for cheap too so i think i might be able to make it work in the 3 grand price range if not ill just do the time frame longer
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