Thread: 1988 gmc k2500
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Old 06-06-2019, 12:04 PM   #4
Second Series
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Join Date: May 2015
Location: Tukwila Washington
Posts: 179
Re: 1988 gmc k2500

I went for a drive around town this week. The brake issue seems to be resolved. Sometimes when I'm driving the truck starts to shake violently, usually around 40mph. I think it may be a wheel bouncing. Awhile ago I picked up a set of 8 lug rims with tires for my '47 truck for $100. those tires had good tread, so I had them mounted on this truck's rims. I don't know if they were balanced then. When I drove it this week, I may have hit a pot hole as I was getting up to speed, but it started shaking, wheel hop? I plan on replacing the shocks first. I think if a wheel was out of balance it would be consistent, but I later got it up to 50mph with no shakes. The shocks look crusty too. I can take off pretty hard without issue, it shakes while I'm already moving. I've read about axle wrap and pinion angle causing wheel hop, I don't think that's going on here. I did grab the driveshaft and it didn't seem loose, I do need to hit every zerk with the grease gun though.
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