BALTHIS

id run 4.88s if 35s are as big as ur goin. i got 5.13s with 37s and a 6 speed and its perfect i turn 2300rpms at 60 all day long and get good millage

swaite3

I just regeared my 2012 auto from 3.21's too 4.56's with 35" Nitto trail grapplers and the 4.56's are the perfect setup. 4.88 would be way too much gear if you plan on running the hwy at 65-75 mph



Steve

jeepmojo

3.73 and 410s pull 35s no prob .

now see this guy has the 4.56 and said the same as me that 4,88 would be overkill ! I guess its a crap shoot id never go to 4.88 gearing for highway dd and 35s but if you think so go for it id rather keep the dam 3.21 s

pwain

Best advice imo.

4.88 would be for weekend warior and thinking of going to 37+.

swaite3

Anyone who comments and does not have an 12-13 auto has no idea what they are talking about its not just the engine the auto trans changed and they reduced the overall gear ratio in overdrive from .69 in the 07-11 4 speed too .83 on the new 5 speed.

Steve

jeepmojo

not here to fight but dam if your going to say 4.88 for 35s on a 2012 that's over kill with 35s is all I was sayin

pwain

I said 4.56, but that I would consider 4.88. Give it a rest and enjoy what works best for you. One doesn't need to own a certain model to "know", just look at gear chart...

swaite3

Yes look at it depending on the 35's ( my nitto's run larger than most 35's) on the hwy w4.88's you would be at 2700-2800 rpm Way too much!

Steve

pwain

Swaite have you noticed an improvement in mpg? After my own regear I am starting to doubt tangible improvements can be made.

jeepmojo

or own the 2012 or 2013 that was someone else I agreed with him on the new transmissions but whatever lets both rest it . im pleased with 410s& 33s lol if I had 35s id still be satisfied w/410