vadeere
LawnSite Member
- Location
- Winchester, VA
I was driving down the interstate last week at about 70 mph in my 1988 K5 blazer. Coming down a hill the truck starts bucking up and down. So I pull to the side of the road. The thumping remains until I put the truck in park. I tried to move it again and you could hear something knocking around, the sound was coming out of the tranny hump. It will still move but had to be towed to prevent further damage. Some people tell me it is a flex plate others say it is a torque converter. I just dont know what the problem is. Any help would be much appreciated. BTW 350 engine with a TH700-R4 auto tranny. Truck has 98500 miles.