For those who run really low gear combos

[Madgyver]

Now i have the 5.13s in and with the 36s, I drive 80mph to the trail if need be and crawl at 124:1.

Now that is sweet!!!

 

[SaddleUp]

Don't forget auto v manual makes a difference in what low gears you need . . . I am running a C4 with a cold duck and 3.50 gears, its 2.43x2.46x2.46x3.5=51.46 but with the torque converter in there it feels more like 100:1.
Craig
Mineola, TX
'74

Exactly. The torque convertor in auto trannies is good for a multiplier of anywhere from 1.5:1 to 2.5:1. If your running an auto then don't let the manual guys fool you into thinking there is a huge difference when their crawl ratios come out to double those of the auto. The reason the auto trannies don't have those low gears is because they don't need them to get the same torque.

 

[raharr3]

I was feeling like crap until I read the last post.
I hope with my C4 tera lows and 4.56 rp I will get some benefit. Hope to do the con and some other trails when I get it all together. Do you think this combo will be capable of some trails?

 

[Jeepincj7]

I was feeling like crap until I read the last post.
I hope with my C4 tera lows and 4.56 rp I will get some benefit. Hope to do the con and some other trails when I get it all together. Do you think this combo will be capable of some trails?

You'll be fine. I have friends who run their Jeeps on the Hammers with the stock slush box and stock Tcase(similar gears to a D20). With the Tera gears you'll do even better.

 

[Madgyver]

Thinking about gearing again............. %)

 

[pahoughton]

Thinking about gearing again............. %)

Well my low will be 127 and my high will be 0.67 with my combo. My choices were based on the idea of having the most options.

4r70w 2.84 -> 0.67
Stock D20 2.46
Klune V 4.0
Rear 4.56

I'll still be doing 70 @ 2000 rpm and can chose Lows (2.46), Med (4.0) or Ultra Low 9.84. I'll also have a switch to lock my torque converter. FYI my Super Duty also has a Klune (2.73) which gives it 110 ultra low and I hardly ever use that.

 

[Frankenhorse]

Well AA has the Atlas II 6.0 now and thier 4 sp case is getting close....



I have been thinking of going with:

ZF transmission
Atlas 4.3 (I think it is 4.3 well you get the picture)
4.56 gears
35" tires

This should get me where I need to go....... For now ;D


If I read the info right this should let me get to the trails doing 75-80 @ 2500 or so. Crawl should be at 112:1