Matt Macchiarolo

I think you meant to say speedo drive gear, not pinion angle. Though I am
not sure there is a speedo gear in the 04 GC, might be an induction
transducer in the Tcase like the Rubicon.

At any rate the tires don't care about pinion angle, only the pinion does,
and you would need to change it if you lift.

"tim bur" <dbrider@cac.net> wrote in message
news:4324A08E.4F3DD837@cac.net...
> if you go to a taller tire, make sure the pinion angle is changed to
> reflect tire size or gas milage will suffer and speedo will be off
> you need a scantool to do so
> JeePenn wrote:
>
>> My wife's stock 2004 Grand Cherokee came with P235/65R17 Michelin LTX
>> A/S tires on 17 X 7.5 rims. The stock tires have had a good run with
>> 56,000 miles but it's time to purchase a new set with winter coming
>> around the corner. We live in north western Pennsylvania where we get
>> a great amount of lake effect snow from lake Erie so good winter
>> performance is essential. I would even be open to going to a larger
>> tire size if it will fit the stock rims and not have any body or
>> suspension rub. Any Suggestions?
>