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10-27-2012, 10:15 AM
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#1 |
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Registered User
 
Join Date: Mar 2011
Location: bolivar, mo
Posts: 839
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Changing Pinion Angle
I have fought pinion angle changes on other cars Ive built.
My question is-- how much change have you noticed(on pinion angle) and how thick of a shim have you used on a 3" to 4" rear drop on the coil spring trucks. Is it easier to fab. your own spacers or do the aftermarket spacers work? I see alot of discussion on suspension drops but not much said about adjusting the pinion angle.
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1997 shortie stepside 1968 short stepside 1966 mustang 1966 chevelle ss Dont always go the cheapest route--You can save yourself into the poorhouse! My Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=489030 |
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10-27-2012, 12:37 PM
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#2 | |
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Senior Member
Join Date: Feb 2010
Location: Falls City, Nebraska "100 Miles From Nowhere"
Posts: 2,219
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Re: Changing Pinion Angle
Quote:
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Michael of the clan Hill, "Two Seventy Two's" 71 1-ton Dually 350 4-Speed 71 C/50 Grain Truck, 350 Split-Axle 4-Speed 02 3/4 ton Express 14 Indian Chief Vintage 1952 Ford 8N, "Only Ford Allowed On The Property"  "Be American, Buy American" 
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10-27-2012, 02:49 PM
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#3 |
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Registered User
Join Date: Mar 2011
Location: bolivar, mo
Posts: 839
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Re: Changing Pinion Angle
When I bought the truck, it had been driven for 1 or 2 years in its present configuration, which was supposedly a 3" drop in the rear by heating the springs (?) It was lower but I never measured because I knew it was all comming apart anyway. I drove it very little before I took it apart and didnt detect any vibration--but there are no shims for pinion angle either. surely if it is an issue, someone here will have worked on it.
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1997 shortie stepside 1968 short stepside 1966 mustang 1966 chevelle ss Dont always go the cheapest route--You can save yourself into the poorhouse! My Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=489030 |
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10-27-2012, 03:17 PM
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#4 |
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Registered User
Join Date: Nov 2009
Location: newbury park california
Posts: 1,038
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Re: Changing Pinion Angle
If I'm not mistaken, our trucks with the calculated load (maximum live load) is @ 5" of drop on the rear end witch puts the drive line/ pinion in line. I remember some one telling me this years ago and not sure of its validity so please don't use this information without checking this theory out for your self. cheers, Pat
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10-28-2012, 11:19 AM
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#5 |
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the boat guy
Join Date: Jul 2007
Location: springfield mo
Posts: 2,339
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Re: Changing Pinion Angle
You can flip the control arm mounts on the crossmember.
Posted via Mobile Device
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67, swb, fleet, tach, throttle, 5.3, 4l60e, 3.73's, fuel cell, 5 lug, p.d.b., 4-6 drop. great little truck 66, stevens drag/ski 18' silouette, 350, 2.02 doublehump heads. comp extreme marine 278 cam, vette 7 fin valve covers, old polished edelbrock intake, velvetdrive, casale v-drive, adj cavitation plate. 28, model a rpu project, |
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