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07-10-2013, 08:51 PM
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#1 |
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Registered User
Join Date: Jul 2011
Location: Moorpark, California
Posts: 159
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Correct Rack & Pinion
Hello everyone,
I have a 54 chevy pick up with a big block in it. Right now I have a R&P from a 76 Mustang II. The problem is the steering is real sensitive and you turn the wheel a little and your almost in the next lane. I have heard of people using an 88 T-Bird rack and also a 93 Mustang rack. I have had the pressure reduced in my Saginaw pump but that did not help. I also am changing the front springs. I had Mustang V8 springs but I foolishly cut off one coil. Now the springs have settled and my lower A-frames are no longer parallel with the ground. Finally do I buy 2" dropped spindles now or do I wait to see where the ride height is after these new springs settle? Thanks everyone for your help. |
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07-11-2013, 12:29 PM
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#2 |
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Senior Member
 
Join Date: Aug 2010
Location: Shasta Lake, CA.
Posts: 1,619
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Re: Correct Rack & Pinion
Wait for the new springs to settle.
Re set the alignment. See how it drives then. You can add an adjustable flow control valve to the system. After all that if you want it lower then go with dropped spindles and realign it.
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Glen & Jane's Rides ‘57 GMC NAPCO Long Bed V8 4 speed Bought 2008 7 other cars & trucks , 5 trailers '56 Chevy Long Bed I6, 4 speed Bought 1990 Sold 8.22.2020 ’56 GMC Suburban Pickup V8, 4 speed Hydramatic Bought 1996 Sold 10.11.2020 My Other Tinkerings http://67-72chevytrucks.com/vboard/s...75#post8967275 |
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07-11-2013, 09:50 PM
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#3 |
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Registered User
Join Date: Apr 2010
Location: Granbury ,TX
Posts: 268
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Re: Correct Rack & Pinion
the mustang rack needs a lower pressure , 900psi
the gm pumps 1100-1800 the Tbird rack works at a higher pressure, than the mustang rack, i use a tbird rack with the small Aluminum Haden Pump, it's not twitchy at all. |
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07-12-2013, 12:24 AM
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#4 |
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Registered User
Join Date: Dec 2002
Location: Cactus Patch So. Az
Posts: 4,749
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Re: Correct Rack & Pinion
When I aligned my Mll I asked him to put as much castor as the slots in the crossmember would allow, that made a big difference in the "feel" of the steering
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53 TuTone Extended Cab 350 4-Spd 3:08 (SOLD) 53 Chevy Moldy pearl green ZZ-4 4L60E 9" 3:25 55 GMC 1st Black Mll (ZZ4) ZZ6 TKO 600 5 sp 3:73 62 Solidaxle Corvette Roman Red (327 340hp 4spd 3:36) C4 & C5 suspension tube chassis LS 3 4L70E 65 Corvette Coupe 327 350hp 4spd 4:11 78 Black Silverado SWB (350/350) 5.3 & 4L60E 3:42 2000 S-Type 3.0 (wife cruiser) 2003 GMC SCSB 5.3 4L60E 3:42 |
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07-12-2013, 11:09 PM
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#5 |
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Registered User
Join Date: Jul 2011
Location: Moorpark, California
Posts: 159
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Re: Correct Rack & Pinion
Thank you all for your help. i am going to go with the 88 T-bird rack and see how the new springs settle. My biggest concern was/is how "fast" the 74-78 Must. II R&P is. I feel like I'm driving a go kart. Anyone used those offset bushings to mount a 88 T-Bird R&P in a crossmember that was drilled for 16" center mounting? Thanks again everyone who replied.
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