I'm planning on purchasing a set of BFG At's before the snow falls.
I've been planning on getting 235/75/15 but my friend says I should go
with 30's. I've got a 00 XJ with a 4.0 and auto. I'm pretty sure the
rear end is 3.73
3 questions:
1. Will I notice much of a difference in fuel economy going from the
225's to the 30's?
2. Can I still use my original spare if I go with 235 or 30? I know I
should have a full size spare but I don't do much offroading and right
now I can't afford an extra tire.
3. Can I fit one of the above sizes, on a steel rim in the stock spare
location, inside the back or will I need to mount it on the exterior?

Thanks in advance

Mort

 

Last time I had AT's in the snow, they were horrible. They packed up
quickly and turned into slicks. A guy in a Geo Tracker passed me while
giving me the finger and saying "Tracked it!", as I looked down, I noticed
his tires were clearing immediatly after leaving ground.
Nick

"Mort" <jmorton@on.aibn.nospamcom> wrote in message
news:P1a5b.7601$Pa1.345156@read1.cgocable.net...
> I'm planning on purchasing a set of BFG At's before the snow falls.
> I've been planning on getting 235/75/15 but my friend says I should go
> with 30's. I've got a 00 XJ with a 4.0 and auto. I'm pretty sure the
> rear end is 3.73
> 3 questions:
> 1. Will I notice much of a difference in fuel economy going from the
> 225's to the 30's?
> 2. Can I still use my original spare if I go with 235 or 30? I know I
> should have a full size spare but I don't do much offroading and right
> now I can't afford an extra tire.
> 3. Can I fit one of the above sizes, on a steel rim in the stock spare
> location, inside the back or will I need to mount it on the exterior?
>
> Thanks in advance
>
> Mort
>

 

Last time I had AT's in the snow, they were horrible. They packed up
quickly and turned into slicks. A guy in a Geo Tracker passed me while
giving me the finger and saying "Tracked it!", as I looked down, I noticed
his tires were clearing immediatly after leaving ground.
Nick

"Mort" <jmorton@on.aibn.nospamcom> wrote in message
news:P1a5b.7601$Pa1.345156@read1.cgocable.net...
> I'm planning on purchasing a set of BFG At's before the snow falls.
> I've been planning on getting 235/75/15 but my friend says I should go
> with 30's. I've got a 00 XJ with a 4.0 and auto. I'm pretty sure the
> rear end is 3.73
> 3 questions:
> 1. Will I notice much of a difference in fuel economy going from the
> 225's to the 30's?
> 2. Can I still use my original spare if I go with 235 or 30? I know I
> should have a full size spare but I don't do much offroading and right
> now I can't afford an extra tire.
> 3. Can I fit one of the above sizes, on a steel rim in the stock spare
> location, inside the back or will I need to mount it on the exterior?
>
> Thanks in advance
>
> Mort
>