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05-19-2024, 01:41 PM | #1 |
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Join Date: Jul 2018
Location: Catskill Mountains,NY
Posts: 8,319
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Re: Vibration 85 K20
Found the front passenger wheel was 3/8+ inches back from the center eyelet of the front spring shackle bolt as apposed to the drivers side. Took it apart the dowel pin on the leaf spring wasn’t in there . Put a new one in and 99% of the vibration is gone . When th PO redid the truck they must have neglected to put it back in can’t for the life of me figure why it was taken out . Now the truck drifts to the left so I need to get it aligned.
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Mark 72 c20 custom camper Husky edition, 66 SS396 Chevelle 1964 Hawk, 63 Avanti,62 lark 1969 AMX , 1968 c20 stepside ,85 K20 1977 Suburban sold 68 anniversary. |
05-29-2024, 08:08 AM | #2 |
Registered User
Join Date: Jul 2018
Location: Catskill Mountains,NY
Posts: 8,319
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Re: Vibration 85 K20
After alignment truck started vibrating again . I took the front tires off my 72 and put them on the 85 . Vibration is completely gone . Had the takeoffs spinbalanced again and the left front had a radial hop in it . This is the second set (Michelin) tires on the truck so the assumption it’s not the tires . Sure enough the rim has a good amount of radial movement . We put that tire on the spare rim and balanced again . The truck is vibration free . Weird that a factory rim would have so much radial run out .
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Mark 72 c20 custom camper Husky edition, 66 SS396 Chevelle 1964 Hawk, 63 Avanti,62 lark 1969 AMX , 1968 c20 stepside ,85 K20 1977 Suburban sold 68 anniversary. |
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