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08-09-2014, 10:53 PM
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#1 |
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Registered User
Join Date: Mar 2014
Location: mascoutah IL
Posts: 8
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shot in the dark
ok the the guy I got my 69 GMC from removed a few leafs out of the leaf springs to lower the truck......I have got my pinion angle close....what I am wondering is do you guys think that becase there are leafs missing that it is allowing the rear end to over flex on accelertation and that could be the reason that I am still eating rear ujoints????just a shot in the dark.....any advice would be wonderful......thanks..........
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08-09-2014, 11:42 PM
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#2 |
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Registered User
Join Date: Aug 2009
Location: Bowser
Posts: 13,590
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Re: shot in the dark
It could!
One piece or two piece driveshaft? What's your pinion angle? What's the angle on your tranny output? Are you checking your pinion angle with the suspension loaded? |
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08-10-2014, 02:28 PM
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#3 |
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Registered User
Join Date: Mar 2014
Location: mascoutah IL
Posts: 8
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Re: shot in the dark
2 piece drive shaft.....one more degree and I should be perfect...i drive it up on patio blocks so I can check it loaded......Im almost to the point of trying to find out what rear end leafs and all will bolt underneith the truck....u joints last about two weeks.....this is driving me nuts
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08-10-2014, 03:25 PM
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#4 |
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Registered User
Join Date: Aug 2009
Location: Bowser
Posts: 13,590
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Re: shot in the dark
Try some spring clamps. Clamp the leafs togethor in the front. Make them yourself out of 1/4 inch flat plate.
Or try a pinion snubber. Not hard to build one to see if the pinion is climbing too far. Here's some troubleshooting links. http://www2.dana.com/pdf/J3311-1-DSSP.pdf http://www.drivetrain.com/parts_cata..._problems.html |
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08-11-2014, 02:50 PM
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#5 |
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Registered User
Join Date: Mar 2014
Location: mascoutah IL
Posts: 8
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Re: shot in the dark
thanks for the info
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08-11-2014, 04:07 PM
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#6 |
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Registered User
Join Date: Jan 2014
Location: Sacramento,California
Posts: 696
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Re: shot in the dark
have you had the drive line checked for balanced? how is the carrier bearing? Is the truck a short bed conversion? maybe the drive line was not done right? just some ideas...
__________________
Built not bought! My dad always tried to convince me HEI was pointless! Welding is a lot like sex, you don't have to be great with the rod as long as you thoroughly prep the surface and your good at grinding  My build : 68 C10 Short Bed Conversion |
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