4.88s and D30?
- Thread starter matt1171
- Start date
cozdude
Guy with a Red 2-Door
^^^^ this. It's a solid set up indeed. 5.13's will give you more than enough power but you do run the risk of a break. That being said i run 5.13's in my d30 but I'm doing it with the future in mind. That future being PR44 and 37's. I hope I just don't break my ring gear before than
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JKFlyer
New member
Me and Cozdude are a complete ditto. If u r not going 37, go 4.88. If u r, go 5.13. This is assuming automatic
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JKFlyer
New member
C gussetts at minimum. Sleeving jury is out....but I did anyway.
Really get a pr44 if u can afford it
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904Jeep
New member
In my opinion I say it depends on what your going to be doing with your jeep. For me I went with 5.13's on 35's on my 2dr automatic. I'd say I get a chance to go wheeling once or twice month, and when I do its usually mud, mild rock gardens, and hill climbs. Never had a problem with a lack of power on or off the road and it sure makes for a fun daily driver. I say I spend about 90% of my miles in city driving. However the general consensus seems to be that if your going to be doing more "technical" or "extreme" wheeling where you may be locked up, low gear, and high RPMS, then you should stick with 4.88's to play it safe. Might also have better gas mileage too with 4.88's by keeping the RPMS lower, particularly if you put on a lot of highway miles. I current get 13mpg with my setup.
Since Matt seems to have gotten his questioned answered,
What are the thoughts on 4.88 with 32-33" tires? My thought with staying close to stock tire size was I would have two sets of wheels. One with say BFT MT, and one with Goodyear Wranger. I would keep the wranglers on 95% of the time, but switch to the less road friendly, more costly BFG's when planning to wheel.
Also, thoughts on the following quote:
Ziplockers installed front and rear
regear to 4.88
sleeve and gusset the front D30 axle
Total ~$3400
Thanks again, and as this is my first post, and I HOPE to have my 2007 JKU this weekend, I am looking forward to this!
What are the thoughts on 4.88 with 32-33" tires? My thought with staying close to stock tire size was I would have two sets of wheels. One with say BFT MT, and one with Goodyear Wranger. I would keep the wranglers on 95% of the time, but switch to the less road friendly, more costly BFG's when planning to wheel.
Also, thoughts on the following quote:
Ziplockers installed front and rear
regear to 4.88
sleeve and gusset the front D30 axle
Total ~$3400
Thanks again, and as this is my first post, and I HOPE to have my 2007 JKU this weekend, I am looking forward to this!
steve_r2
New member
Woogi,
I run 4.88s with 33's (09 Auto JKU).....was the best upgrade I have done. If you want to get back some ooooommmpppphhh then this is a good way to go. Be aware that as cozdude said you do run the risk of a break if you go 5.13 due to a smaller pinion.