454/t56 and AC
Senior Member
Joined: Sep 2007
Posts: 568
Likes: 1
From: Leander,TX
Car: 84 Z28 / 88 Trans Am / 87 base
Engine: L69 H.O. / 468 BBC / 2.8 v6
Transmission: 89 700R4 / TH375B / 700R4
Axle/Gears: 3.73 open / 3.23 posi / 3.42 open
Re: 454/t56 and AC
the astro vans used them due to space restraints, also i believe they were valved differently from the trucks. the 2500's had some but much less than the 3500's. as light as our cars are compared to the trucks I'd go towards the astro set the hydraulic valving would be much closer for our cars weight. the trucks used them for slowing down 10,000 lb trailers.
Thread Starter
Senior Member
Joined: Mar 2010
Posts: 567
Likes: 2
From: middle of nowhere between farms in New York
Car: 1987 pontiac firebird
Engine: 6.5 turbo diesel
Transmission: t56
Axle/Gears: Ws6 axle
Re: 454/t56 and AC
the astro vans used them due to space restraints, also i believe they were valved differently from the trucks. the 2500's had some but much less than the 3500's. as light as our cars are compared to the trucks I'd go towards the astro set the hydraulic valving would be much closer for our cars weight. the trucks used them for slowing down 10,000 lb trailers.
Senior Member
Joined: Sep 2007
Posts: 568
Likes: 1
From: Leander,TX
Car: 84 Z28 / 88 Trans Am / 87 base
Engine: L69 H.O. / 468 BBC / 2.8 v6
Transmission: 89 700R4 / TH375B / 700R4
Axle/Gears: 3.73 open / 3.23 posi / 3.42 open
Re: 454/t56 and AC
it should work just make sure you have the pressure lines connected properly, they should be from the pump to the booster to the steering box in that order. if you hook the lines up wrong you wont have the boosted brakes. also the pump should have 2 return lines on it 1 for the booster the other for the steering.
Member

Joined: Feb 2010
Posts: 395
Likes: 3
From: San Antonio TX.
Car: Currently have 3 cars and 1 truck.
Engine: 1970&92 Cams,both BBC's
Transmission: LS1 T-56 & PG w/vendor's
Axle/Gears: Built 10 bolt& 9inch w/spool
Re: 454/t56 and AC
Use a flywheel that is for a Mk V one piece rear seal, and external balanced.




