Jeep Wrangler Forum banner

1 - 4 of 4 Posts

·
Jeeper
Joined
·
1,307 Posts
Discussion Starter #1
hey everyone!

Im going to 37 inch km2s, and I want to know if 4.88s is over gear for me. can anyone who has this set up with a 6pd weigh in about how they like it?

The truck is supercharged, so i cruise at 85 now with 34' duratracs and 4.10s.

I dont want to humm at 3k rpm at 70 mph.

Anyone gone to 4.88s and wished they didnt?
 

·
Registered
Joined
·
666 Posts
The charts say you'll be a bit over 2500 RPM at 70 in an AT and just under that with an MT on 37s with 4.88 gears. (assuming you're in the 3.6)

(edit, also assumes a normal tune, I don't know what, if any, map/computer/injection mods you do with an SC set up in this thing)
 

·
Jeeper
Joined
·
1,307 Posts
Discussion Starter #3
anyone running 37s with 4.88s ?
 

·
Registered
Joined
·
310 Posts
At 70mph its a difference of about 170rpm's between 4.56 and 4.88. I have the duratracs and 4.10's for now but will be switching to 37" mtr and 4.88 in the future. I rarely run much over 70mph though. If I were routinely running 85, id probably stay with 4.10's. Especially since youve got an extra 125hp.

Even so, I say go 4.88 and then let us all know how much you like it. :D
 
1 - 4 of 4 Posts
Top