all wheel drive and tires
 

I hope someone can give me a good answer to this one. My all wheel drive durango blew out a front tire. I replaced the front two tires and left the rear alone. The difference in the tread depth between the new tires on front and the rear tires is 3/32. My dealer said that that is OK, but the tire dealer said I have to replace all the tires if there is any difference in tread depth due to a transmission wear issue. Whats the truth. What does Dodge think? I cant find any definitave answer from Chrysler. Thanks. LM.

RE: all wheel drive and tires
 

A .090 difference in the diameter is not going to create any issue with the transmission. Sounds like the tire dealer was looking for a sale. That's the kind of thing that sends me elsewhere to do business.

RE: all wheel drive and tires
 

I'd tend to agree with Sarg! The Jeep Qradra-Trac system is the only AWD system I've seen on domestic 4X4s that is sensitive to tread depth differences.

Cheers -Douglas (CDJ Service manager in NC)

RE: all wheel drive and tires
 

I agree guys, it sounds like someone was trying to seel 2 more tires valve stems and maybe an extra alignment!

RE: all wheel drive and tires
 

The only thing you must be careful of is changing tire models and brands. Just because you have a 235 75r15 in one brand, doesn't mean it matches height with other brands or models. (Yeah, I know that it is supposed to, but it doesn't.)

Suggestion: Check your mounted tire height front and rear. If they're not pretty close (Within 0.1") you can (depending on design) create issues in your gearbox. Keep 'em close.

RE: all wheel drive and tires
 

If you think that the difference of just under 1/8th of an inch of a tire's diameterhas ANY impact on the "gearbox" .... I'd like to better understand the "issue" you're talking about.

I have 14k miles on a Pacifica and I just acquired a factory wheel and a new tire of the same make & model as on the car. I am going to put the new tire on the car today as part of the rotation .... and imagine there is "at least" 1/8 inch difference in the diameters.

I anticipate ZERO problems.