I currently have a chrysler 8.25 axle in the rear, what gearing is in it? I believe everything is stock still. Im currently running 235's and get about 18 mpg. Can I lift it and put 31's on or will I have to regear or axle swap? If I dont have to change anything, will there be a noticeable decrease in gas mileage?

 

No they won't, I've had my 33s on my jeep for 6 months with no problems. I did all off uwharrie And a few others that I wheel with have 35s with stock gears and 8.25. No probs.

 

I'm gonna sec you to a point 97 and after are tuff. But anything out of a later model xj you might as well have a D35 and I have had 33s on my D35 for a year now with no breakage.

 

if he has a 29 spline rear 8.25 hes fine for 33s. and he would be "OK" with 35s. As long as he dont wheel hard all the time. I have a late modle 96 and i most likely have the 29 spline. The u joints are bigger than normal in my front axle shafts and my rear axle yoke looks diff than 27 spline yokes ive seen. if i do im gonna lock the rear with a no-slip and go 33s.

 

In 95 they made the drive ends bigger and 29 spline 8.25 was only in 97 xj or. Newer

 

Ok think what ya want, ive seen it done.

 

This is my question.

 

drive a 98 2x4 grand cherekee and oil pressure stays very low round 40-50 ponds even at highway speeds. Need help

 

Mpgs will drop, and you will loose a bit of off the line speed. I have this setup on mine, and it's ok.

 

If I was to reagear it, what gearing would be best for 31's for best mpg and how much would it cost for me to do it myself?

 

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I installed aftermarket Halo LED and eyebrow projector headlights on a 2001 Grand Cherokede Laredo. Initially all appeared to work. Low beam, high beam, halo, eyebrow and signal light. Next time I turned tha car on, only low and high beams worked. I tapped into my parking/signal light assembly. 2 ground (black) wires from headlight to ground (black) then the 2 white wires to the Minor (parking light) wire of the assembly. Some research indicates I may also need a new flasher relay which can hadle the LED's.

 

wrong forum. You need the grand cherokee forum. This is regular cherokee.

 

Wrong some late modle 96s had 29 splines

 

My Flashers AND Hazards went out today. Completely dead.
Checked fuses what else?