4:88s or 5:13s ??????
#11
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I'm running 5.13's on BFG KM2 35's. I have the Accupro Programmer and I highway commute between 75 and 80. At 80, it's around 2875/2925 in overdrive. You get lots of bottom end but at speed overtaking can kick the rpms pretty close to redline.
I REALLY like my 5.13's and think they are as close to perfect as you can get with 35's. I'm planning on seeing how 37's do real soon, I feel 37's and 5.13's WILL be the perfect combo.
I just don't think 4.88's are enough, I have 2 friends locally with 4.88's (I auto on 36's and 1 manual on 35's) the manual loves his, the auto wishes he would have went 5.13's.
I REALLY like my 5.13's and think they are as close to perfect as you can get with 35's. I'm planning on seeing how 37's do real soon, I feel 37's and 5.13's WILL be the perfect combo.
I just don't think 4.88's are enough, I have 2 friends locally with 4.88's (I auto on 36's and 1 manual on 35's) the manual loves his, the auto wishes he would have went 5.13's.
#12
I've never taken my Jeep about 70. But, you can go here and get this handy spreadsheet to calculate what your RPMS will be. It's been pretty accurate for me.
http://cid-aa4d5756727fb33c.skydrive...RPM-Table.xlsx
http://cid-aa4d5756727fb33c.skydrive...RPM-Table.xlsx
#14
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#17
I am thinking of regearing, but only have 33"s M/T now and will run them till i need new ones. I might go to 35"s but never bigger than that, but that is atleast 1-2 years away. If I go 35's, i will go to A/T as well... Would 4.88 work better with 33"s ? I am pretty happy with that size now, but with my 3.7 gears, it really does just suck right now, any incline at all kicks it out of O/D
#18
I have an auto also and I'm planning on 5:13's also with 35's, my question is do you have to go to the dealer to get the computer re-programmed for the diferent gears???
Last edited by 7Slots; 12-15-2008 at 09:19 AM.
#19
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I used the Pro-Comp AccuPro, basically a rebadged Hypertech. I'm not sure if the dealer with calibrate it or not, I never asked them.