Whats the minnimum tread required on drive tires?

It's 4/32" on steer tires and 2/32" on drive tires, I don't believe it differs anywhere in the country.

 

2/32nd's for drives. 4/32nd's for steers. DOT regs.

 

I hate to sound rude here, but I gotta ask. How can a person be in this business, and not know this basic stuff.

 

2/32 min in every major tread grove for drives

i normally start tire shopping between 6-4/32 and pull them by 4 though.

 

Probably not a great idea to let any of them get below 4/32 honestly though.

Surely you look at all your tires when you're doing your pretrips... right? I'd think that should be keeping those numbers fresh in your mind... moreso than say, the 1" of play on your slack adjusters or 3/4" deflection in the belts or whether the spring breaks should start thinking about coming on around 40 or 45psi

 

4/64 on the drives

 

You are gonna stress some bodies brain with that answer