So I have read a lot on 37's with 4.10 gears and how they suck on the highway, but I'm not too concerned about that. It is not my daily driver, just my toy. I don't care about mpg or if I can maintain 70 mph. However, I do live high in the mountains (Durango) and wheel alot in the high country around Silverton-Ouray-Telluride, where there is a lot of climbing. I also make it out to Moab frequently.

Ignoring highway driving, would I still be able to wheel? 4low is pretty low, but I want to make sure I will still have enough power to climb. I have a manual, not auto.

Thanks

 

I have a 5.7 hemi 37's and 4.10's and it does just great

 

Now you're just showing off.

 

I run 37 toyos and 4:10 for the last two years. You perhaps have to clutch it a bit more offroad on steep rock climbs but doesnt bother me enough to regear at this time. Run the 4:10's and if you find it to be a problem then regear

 

Certainly took a hit On-Road and 4Hi but nothing that i can't live with just a little more revs, but def noticed. No issues in Lo of course. i plan on regearing but will stay with this awhile and decided if long term i plan on moving up on size

 

I've got 35's and 3.73 (so maybe a good comparisson?). Agree with everyone else - on road I notice it. 4Low, just a little more spinning and gas to clean mud, and "torqued" rock climbing (Brake + Gas, and acellerate by easing up on the brakes). Programming has helped a bunch on the street - Tow Tune (superchips) and tranny shiftpoint raised - to the point that I'm getting close to the awfull stock MPG's. Crawl Tune while off road is really great. Some day I'll regear, but not a priority as of now.

 

I drove pjohn's jeep yesterday I liked it. it handled 4.10 with 37 and pentastar well..The shift points for me were a lot more comfortable than stock. I didnt get to wheel it but he said it needs gas to maintain from stalling on some rocks when in four low

 

I run 4.10's and 37" KM2's, with the 3.8. I do not see what the big deal is. In 4lo there is plenty power to climb anything in my way. I do a good deal of highway driving, pull a double atv trailer in the mountains, and sometimes a popup full of gear. I usually average 18mpg empty and 16 with either trailer. 3rd and 4th gear get used a lot in the mountains.

Keep your $ wheel wwhat you have and like others stated if it is not acceptable to you, then regear!

Best of Luck and have Fun!

 

4.10 with 37" 3.8 engine auto trams. Have to turn the over drive off and im in flat Florida to run 60mph+

 

I'm going to 5.38 very soon