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Power Strokes 1994-1997 Upgrades and Aftermarket Upgrading or adding OEM or aftermarket equipment to your 1994-1997 Ford F-Series with Power Stroke engine.

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Old 03-03-2009, 04:15 PM   #1 (permalink)
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how to correct pinion angle

had blocks on the rear to lift it and then went with lift springs. Now I get a vibration at about 40 MPH and maybe 60 can't remember. Anyway my pinion angle is actually pointing up toward the bed of the truck. I need to know where it needs to be, and the best way to figure out what shims I will need to get. If I am correct the axle needs to be at the same angle as the transfer case? if that is correct, how can I figure it out? And will I be ok loosening the u-bolts and re-using them when I do it?
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Old 03-03-2009, 10:03 PM   #2 (permalink)
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You are correct that your pinion angle and transfer case output shaft angle should match. It is also common to drop the carrier bearing to stop vibration. On my truck with 4" lift my carrier bearing is dropped about 1 1/4". You can use a angle finder (available at most hardware store, sears etc.) to determine the degree of shim needed. do you have any block left mainly the one used for the bump stop?
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Old 03-04-2009, 03:55 PM   #3 (permalink)
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Yeah and the springs came with wedges but they are too much wedge I guess. I may try to just remove them and see where it get's me. Carrier bearing= the yoke coming out of the D/S correct?
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Old 03-04-2009, 04:01 PM   #4 (permalink)
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Carrier bearing is bolted to your under carriage with two bolts in the middle of your two piece driveshaft. I think I would pull the wedges also and compare your tranny yoke and pinion yoke with something like this Craftsman Magnetic Angle Finder - 39830 at Sears.com
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Sold: 94 F250 xcab, E4od, 4x4, IDI 7.3 turbo (Put the gears, lift, and goodies on the 97)
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Old 03-04-2009, 07:41 PM   #5 (permalink)
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Looks like he has an extended cab short bed so he has no carrier...just a 1 piece driveshaft
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Old 03-04-2009, 07:46 PM   #6 (permalink)
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Your correct I missed the SB
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Sold: 94 F250 xcab, E4od, 4x4, IDI 7.3 turbo (Put the gears, lift, and goodies on the 97)
97 F250 XLT CCSB 4x4, PSD, stump puller heavy duty E4od, fast spool turbo, deleted ebpv, 203* t-stat, high pressure X line, 140v Idm mod, 6637 filter, 60hp chip, 3" downpipe 4" shorty exhaust, 4" lift, 4:10 gears, 35" tires, over 300,000 miles
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Old 03-05-2009, 11:01 AM   #7 (permalink)
 
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Since you don't have a carrier bearing what Icon recommends for SD's are flat blocks...The rear pinion should be the same * as the TC..if the spring pads are stock so using flat blocks should work. I have reused U bolts and never have had a problem that said its recommended to get new.
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Old 03-06-2009, 12:52 PM   #8 (permalink)
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My truck isn't a SD though, it's a 96. so your saying i should be able to just remove the wedge that's in it now? Thanks for the help guys. Now I know what a carrier bearing is.
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Old 03-06-2009, 01:19 PM   #9 (permalink)
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I would try removing wedges first, that doesn't cost anything but your time.
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Sold: 94 F250 xcab, E4od, 4x4, IDI 7.3 turbo (Put the gears, lift, and goodies on the 97)
97 F250 XLT CCSB 4x4, PSD, stump puller heavy duty E4od, fast spool turbo, deleted ebpv, 203* t-stat, high pressure X line, 140v Idm mod, 6637 filter, 60hp chip, 3" downpipe 4" shorty exhaust, 4" lift, 4:10 gears, 35" tires, over 300,000 miles
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