I have a 1993 f150, it had 35 inch dick cepeks on it and they drove great. After putting my 39 inch mickey's the truck will literally bounce after about 35 or 40 mph and it wont stop until you get the truck under 30, it is literally a bounce... the tires were supossedly balanced as well, no bent rims either as this is the wheels the dicks were on. Are the shocks just not able to take that size of tire or are there flat spots on the tires? If so, what should I do to get rid of them?? Thanks, Robert

 

i really doubt its the shocks

get the tires rebalanced, or try borrowing a buddies set of tires (similar size/weight) and running them down the road to see if it still does it....

 

the 35's run fine, but not the 39's

 

get the tires warm (ride around some) then try (wont have bald spots from sitting).......also try going past 40mph.....to see if it stops again.....

could also be da DEATH WOBBLE!!!!! from warn out steering components, check all steering joints, ball joints....etc

 

sounds like flat spots from sitting. do as he said and drive them around for about 10-15 minutes and see if they lose it.

 

That's kinda what I thought, so I checked everything out and there isnt much play in the steering, i've drove them for around ten miles and they still bounce, I need to drive on them more to see if it will go away but I was wondering if there were any other methods that would help

 

I had a set of 39x18 Micky Ts. Took 18 oz. and still shook. I had clamp on weights and stick on weights. Maybe those beads you put in the tire will help.

 

I think it sounds like you need to use some balancing media. Heres a link.

https://www.ford-trucks.com/forums/7...uestion-3.html

 

what air pressure are you running in the tires. on the 5 tons with 52s they bounce like no tommarow because we run them at a low psi and if you dont speed up slowly on the pavement they bounce.

 

39s on a TTB....hahahaaha

 

thats axle wrap though... top loaders do it reeaaal easily, mainly because of the amount of rotating mass

he shouldn't have axle wrap @ 40mph

 

I know sounds crazy, right. I climbed sand hills to the floor with a mild 302 and never broke it. Ill post pics one day. When I find them.

 

soft...............

 

also in part because they dont run shocks in the back of our 5 tons but when the tires get low its gets real bad.