Hi, briank, I installed Coker classics 650-16 white walls on my 49 1/2 ton about 2 years ago. I have had no problem with the tires thumping ( about 2000 mi.)but I must add that my truck had 3/4 or 1 ton springs in the back and worn out front springs up front. ( Front springs would bottom out and rear would kick me in the [censored]). I have now installed good springs front and rear. The truck will be on the road in about 1 month, so I will update at that time.
Last edited by hippy; 02/20/2010 4:32 AM.
