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Blackedoutharley
11-30-2012, 05:43 PM
Just thought I would let anybody that is looking for a steering box to convert over to power that you are not limited to boxes from Chevy/GMC trucks.

Most Dodge trucks from about '72 to about '78 also used the same Saginaw box.

Afterwards they could have had a reverse rotation box installed so be sure to check which way it rotates if you're sourcing from a junkyard.

A new box is about $125 from most parts stores though.

A1Cardone part number is #7501

YMMV

ROYO
11-30-2012, 07:15 PM
Is there a quick ratio also for older chevy trucks?

Blackedoutharley
11-30-2012, 08:31 PM
Some of the aftermarket companies offer them but I don't remember one being offered from the factory.
I think a stock box is about 3.5 turns lock to lock which really isn't bad for a truck.

ROYO
11-30-2012, 09:59 PM
Do you remember the 605 ps gearbox on the camaro and novas 68 71s how they turned so easy. that is more what i would be looking for

Blackedoutharley
12-01-2012, 01:11 AM
I used a 605 box in my '57 Chevy when I converted it to p/s

ROYO
12-01-2012, 07:12 AM
Do you think a 605 box would have the same bolt pattern as a truck. Or would it just bolt right on a truck frame

Blackedoutharley
12-01-2012, 09:48 PM
The box you mentioned from a Nova, Camaro etc will not work as those cars have them mounted on the inside of the frame rails.

Trucks must use a truck box because of the mounting position if nothing else.

Rich 5150 69
12-02-2012, 01:06 AM
You could potientially change the pitman arm, if there was enough room ( shorter ) thus giving you a little quicker ratio.

ROYO
12-02-2012, 08:21 AM
Have you guys ever modified a ps pump for more preasure?

Az Geezer
12-02-2012, 08:50 AM
No, but I've modified a GM pump to reduce pressure with a Mustang II rack........

Barn Owl
12-02-2012, 10:13 PM
I have reduced the GM to mustang pressure too. If you dont they are too twitchy.
I think if you increase pressure it might not act the way you wan it to.