Dalton gang
New member
I got a set of 35 bfg km2s on my rig wondering if 37s would work with 4:10 gearing? I don't want to get to sluggish on or off road. What you think?
35s or 37s hmmm
- Thread starter Dalton gang
- Start date
Speedy_RCW
Hooked
I'm running 4.10's and 37's and can't complain. I'm also a 3.6 but 6-speed so take it for what it's worth. I'll regear eventually but it's not high on my priority list. I'm sure you'll see a little performance loss but it's to be expected.
Dalton gang
New member
Thanks! Im running a 3.6 manual as well. Im still on the fence haha
Nguyenning
New member
Got 35's and running 4.88
DWiggles
Caught the Bug
I was running my 37" toyos with the factory 4.10s for a while (6 speed, 3.6)
I thought just as you guys... its fine, its not that bad, blah blah blah.
THEN, I regeard the jeep (5.13s)
WHY THE HELL DID I WAIT SO LONG!?!?! OMG! Moral of the story, trust in the science, and regear your jeep. It makes THAT MUCH of a difference. my regear is by far one of my favorite mods to date. :thumb:
Greg__Berger
Member
I was running my 37" toyos with the factory 4.10s for a while (6 speed, 3.6)
I thought just as you guys... its fine, its not that bad, blah blah blah.
THEN, I regeard the jeep (5.13s)
Moral of the story, trust in the science, and regear your jeep. It makes THAT MUCH of a difference. my regear is by far one of my favorite mods to date. :thumb:
I'm running 37's on 4.10 with the 6 speed and it's doable, but I am definitely ready to regear to 5.13. Daily driving, it's harder on the clutch in 1st and on the trail, it doesn't crawl the way it used to. I killed it like 4 times on an obstacle I used to let it just crawl up.
Dalton gang
New member
Right on , thanks guys ! Think ill hold off on the 37s till i regear
mudmobeeler
Caught the Bug
I will definately regear when I go to 37s. But I will probably wait until I get a PR44 and only regear once. So I will most likely run the 37s on the 4.10s just as I am doing right now but with 35s. I'm sure it will be sluggish but I don't care for most of my driving. I daily drove a 4 cyl yj with 4.10s and 35s for two years. Holy crap that sucked.
DWiggles
Caught the Bug
You can regear, and just move the setup over to the prorock when the time comes. You would just need a minor install kit if you remove the pinion races without damage. Just need a new crush sleeve to set pinion preload and you should be good. Aside from minor shimming to the locker to get a good mesh. Easy peasy.
Unless your going to switch over an ARB, in which case, waiting to do it all at once makes more sense.
Heavyhaul07
New member
I was running my 37" toyos with the factory 4.10s for a while (6 speed, 3.6)
I thought just as you guys... its fine, its not that bad, blah blah blah.
THEN, I regeard the jeep (5.13s)
Moral of the story, trust in the science, and regear your jeep. It makes THAT MUCH of a difference. my regear is by far one of my favorite mods to date. :thumb:
How is your cruise speed on the freeway and rpms at such speed. I've read a lot and some say 4:88 and 37 for 6 speed. I live in Colorado lots of hills and I do quite a bit of long distance trips on the freeway. Thanks
Too funny because I was putting 40's up against my 37's tonight thinking man that looks good.