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overhaul with annoying vibration/ fast clicking sound

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Old 04-16-2015, 09:54 PM
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overhaul with annoying vibration/ fast clicking sound

Hey guys, have an single cab short bed 87 4x4 that I just did a SAS on.

Had fully built front axle with a Detroit. I did the f150 leaf swap which ended up moving my rear axle an inch forward. I noticed I have a slight vibration because of it and in 4th gear it'll vibrate intermittently when I'm lugging it till I pick up speed then it'll go away. It raised the rear 4-5in or so but the drivehshaft is only sticking out 1\2in more then stock. I! Guessing my angle is do much...

But I just put the trail gear long slip front driveshaft and I have a HORRIFIC grinding\ fast clicking sound that I feel in the whole truck when accelerating hard or coasting. Its never done it before with the ifs so I do not know why it's doing it now. If I unlock the hubs it still does it. It goes away when in 2wd. Only in 4wd it does it. Could my tcase be messed up all of a sudden or ???

Last edited by tomczaksdiesel; 04-16-2015 at 09:58 PM.
Old 04-17-2015, 07:10 AM
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Driveshaft out of balance, ujoints bad, bad pinion angle. Start weeding them out.
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