Caprice/Impala Steering Box?
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chevellelaguna
sportster_restorer
6 posters
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Caprice/Impala Steering Box?
Does anyone know the ratio of the stock steering box on a 74 Laguna?
I was wondering if there was any performance benefit to swapping over to the 90-96 Caprice/Impala steering box? One reason for considering this is to get the late O-ring fittings and hoses, and where I could use a hydraboost system using all stock hoses.
I was wondering if there was any performance benefit to swapping over to the 90-96 Caprice/Impala steering box? One reason for considering this is to get the late O-ring fittings and hoses, and where I could use a hydraboost system using all stock hoses.
sportster_restorer- G3GM Member
- Street Cred : 1
Re: Caprice/Impala Steering Box?
Not sure of the ratio differences between the boxes. I do know however, that they do sell fittings to convert your original box to later model hoses with I rings. I know the 90's Astro van hydro boost set up fits our cars with some modification to the brake pedal rod. That system runs off of the pressure generated by the power steering pump. You'd want to ensure that your system is up to the task, also consider plumbing in a power steering cooler, these newer cars have some pretty fancy small ones. I've been stock piling a few for an upgrade to my ps system.
chevellelaguna- G3GM Enthusiast
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Re: Caprice/Impala Steering Box?
I know some of the late model Caprices had the 12.7:1 ratio steering box, like police cars. There are lists online of which cars had them.
Stock ratio for a 1974 Malibu is 16.0:1 on center to 13.0:1 (variable ratio). Overall ratio with the steering linkage is 18.7:1 on center to 16:1. You can also have your current box rebuilt with quicker ratio internal parts. That's what I plan to do this winter when the car is off the road.
Stock ratio for a 1974 Malibu is 16.0:1 on center to 13.0:1 (variable ratio). Overall ratio with the steering linkage is 18.7:1 on center to 16:1. You can also have your current box rebuilt with quicker ratio internal parts. That's what I plan to do this winter when the car is off the road.
76 Malibu- G3GM Member
- Street Cred : 2
Re: Caprice/Impala Steering Box?
I used a Jeep Grand Cherokee box on my 73 when I swapped the LS in, it bolts right up after swapping the original pitman arm onto the jeep box, using a rag joint for a mid 80s Chevy pickup, and gets you 12.7:1 ratio and the new style fittings (I used a PS hose for a 86 Monte Carlo as it had the right fittings for the JGC box and the PS pump on the LS engine)
alowerlevel- G3GM Member
- Street Cred : 6
Re: Caprice/Impala Steering Box?
I might do this as winter project. Sounds good. What box do you need to get? There is more than one ,correct?
ant7377- G3GM Addict
- Street Cred : 36
Re: Caprice/Impala Steering Box?
Jeep Grand Cherokee would probably be your cheapest and most reliable option. There's even a write up for it.
http://classicoldsmobile.com/forums/custom-aftermarket-suspension-handling/22736-93-97-jeep-grand-cherokee-steering-box-swap-w-pics.html
http://classicoldsmobile.com/forums/custom-aftermarket-suspension-handling/22736-93-97-jeep-grand-cherokee-steering-box-swap-w-pics.html
brownbomber77- G3GM Member
- Street Cred : 4
Re: Caprice/Impala Steering Box?
Yep lots of info here as well http://www.chevelles.com/forums/showthread.php?t=334534
alowerlevel- G3GM Member
- Street Cred : 6
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