Tire pressure with lift and 35's

[IGarbutt]

What PSI is everyone running in there 35's M/T
Mine drives smooth till about 60kms an hour then starts to shake at 80 and really bad at 100km/hr. I'm going to assume I need to re balance my tires but wasn't sure if psi was adding to the roughness

(Was smooth when on stock tires)

 

[TRCM]

Tire pressure makes no difference within reason.......but using the correct weights on the rim, and putting them in the right place does.

I've had shops use steel rim weights on aluminum rims.....barely works.

Aluminum rim weights on a steel rim....they flew off the 1st time I hit 55 mph and I watched them bounce off the other vehicles near me....just glad no one knew what it was.

Also make sure the rim fits the hub/lug studs snug, and that you use the correct taper lug nuts.......you can have issues there as well.



When I first drove the truck in my avatar, it was on 38's, and I used the stock lug nuts on the aftermarket steel rims. Seemed good, but when I got about 1/2 way home, just as I was goping over a tall 2 lane bridghe with very low guardrails, it felt 'squishy'. I stopped after I got across to see what was up.

I was very very lucky.......every, and I mean every as in all 20 lug nuts were within 4-5 threads of coming completely off. I tightened them with the 4 way until they squeaked at me. Made some calls the next day, and it seems the rims I had needed a slightly different taper from the stock ones I had used to seat properly, so I got new lug nuts, and never had any more issues....but I did always tighten them till they squeaked after that.

 

[brandonjansen]

What rims do you have on your truck? Did they install hub rings with them to make the wheels hub centric rather than lug centric? If not that's where your shake is coming from. Very common at highway speeds if using a lug centric setup.

I'd run 40 psi front/35 psi rear when unloaded on a 1500 with MT tires.

 

[xrsman]

I run my A/T's 5 psi off max. My truck runs very smooth!

Sent from my SM-G920W8 using Tapatalk

 

[IGarbutt]

Got them re balanced no more problems!