Tire Pressures-Best?

[StephenDelany]

I just got the beast set up with a set on BFG All Terraine KO's in 265/75-16 Load Range D (65 PSI Cold Max)



I was wondering if there are others out there who have discovered the best inflation pressure for these tires? I have got 50Lbs all around right now and every now and then I get a "bouncing" vibration on smoth pavement. I was thinking that it might be the tires are too hard for light load and start a very slight hopping rythem.



The stock Michelin LTX MS's never did this but their tread area did not seem as hard as the BFG's. They were E Load tires that I kept at about 55- 60 PSI.



As a side note it seems that all of my stock steel rims are also Bent to some degree or another! I don't do any off-roading but they were visibly out of true on the ballancing machine and required heavy applications of ballancing lead to spin even for the machine.



I would blame the rims immediately accept that this slight bouncing vibration never occurred with the stock tires on the same rims.



If there is a Tire & Rim Doctor in the house I offer myself as as a Patient. Have At It!

 

[JStemann]

I may be wrong (1st time for everything) . But i believe the lead is more to balance the specific tire to the individual rim. To compensate for variations in the tire not the rim.

Please correct me if I'm wrong.





As for the tire pres. I'm still running stock Michellins @ 65psi

 

[time1]

I have the same tire that you have. Mine are mounted on 8 inch wide rims so there will probably be a difference in inflation pressures. I did not like the side wall bulge when the 265 tires were mounted on the stock 6. 5 inch wide rims. This side wall bulge could allow the tire to flex causing the bouncing vibration you are getting. Any way, I run the front tires at 55 psi and the rear at 35 psi when the truck is empty. When loaded I use 60 psi in the front and 65 psi in the rear.

 

[Beast2B]

I agree with Tim. I still have the stock 265/75R16 Michelins, but the freeway on my way to work is pretty bumpy. Empty I run 55 front and 40 rear.

Balancing is a combination of correcting for imperfections in the tire and wheel, not just for one or the other. If a tire is WAY out of balance, many shops will try to spin the tire 180* on the rim to try to get the closest to neutral balance without weights.

 

[Hammer]

I know the early years(94-96) of the 2nd generation trucks had problems with the wheels easily being bent for no apparent reason and created the slight shake some were experiencing at the time,,Now when you balance the tires you have and curent wheels your only balancing for the tires inperfections and not the out of true wheels,,There is no way to compensate for them except changing them,,One other thing to consider on your bouncing problem along with softer tire pressures is the move you made DOWNWARD in load range(E to D),,The lower the load range the, less the plies,the softer the sidewalls and the increased side to side sway or bounce,,I have myself seen alot of guys drop lower in rating yet trying to make their truck ride more comfortably and not give the trucks weight any second thought,,Some I have seen even try to tow with the lower rated tires and always seem to complain on how the vehicle handles with them,but,when you try to explain it to them they always argue,,Fact is if you'd ever sit your truck on a CAT scale and weigh it you'd see the difference in front to rear weight and realize that lowering load range is not always in your best interest(especially when towing),,A load range D is not all that bad,but I have seen some drop to a C and seen some with tires with no rating at all,,Its your choice on the tires,but,I'd look around for a set of wheels to fix the untrue ones then just run my pressures a little higher then the DC supplement states,probably closer to manufacturers reccomendation,,Hope this helps. .

 

[juicedcummins]

tire pressures

I posted a reply under tire questions it should of went here!I made a mistake and don't know how to fix It does apply to you're post.