how badly will i be wanting lower gears? this setup would have to last me until mid-december with a very, very, very wimpy 4cyl.

i know that i should have lower gears and a bigger motor with 42s, but will it work at all for maybe 5 or 6 wheeling runs?

thanks :beer:

I have 98:1 with 38's and a 6 cyl and I want deeper.....FWIW :beer:

I'm there with 38's and an automatic. Wish it was a hair lower. I wouldn't want it with 42's:eek:

this is exactly what i run, but i also have a healthy v-8 to help it out and propane. i think it does great and i have no problems even with an open front. i will regear only because i want a front arb and the break is 4.10-4.56 so i might as well re gear it when its apart. jiMMy

I think you could get away with it if you were running a torquey 6cly, but with a 4 cyl you are going to be HURTING!

I ran 97:1 and the torque monster 6cyl in my Cruiser before the LT-1 and auto and it was just right...any lower and I would have been in sad shape.

I used to be at 84:1 when i had 33's......it was pretty damn good there......Now im 120:1 with 37's and that is closer to what you need!

I tried the 84:1 when i put the 37's on and hated it!!

ok, ill have to look at some way to do a quick and cheap dual transfer then. cause i can see it now, 60hp and 100lb ft of torque with 75:1 and 42s is gonna suck!

also, that 75:1 was with 7.17s in the axles, which i know wouldnt be a problem with teh 4cyl, but once i go to a 454 and 465, i would be worried about the pinions! :beer:

im putting 6.17's in mine and calling it a day with front and rear arbs! jiMMy

My plans will put me at 64:1 w/ 42's

- 4.3L V6
- TH350 (2.52 first)
- Toyota dual cases (2.28x2.28)
- 4.88's in the axles


If it was 63:1 with a manual I would be worried, but with an auto - I think I will be just fine :cool2:

Originally posted by DRM


If it was 63:1 with a manual I would be worried, but with an auto - I think I will be just fine :cool2:

Wifey ran our truck through 2' deep mud over the weekend in 3rd gear, low - that's a 10:1 "crawl ratio". I think you're gonna be JUST fine at 63:1 ;)

TEX

Originally posted by TEX


Wifey ran our truck through 2' deep mud over the weekend in 3rd gear, low - that's a 10:1 "crawl ratio". I think you're gonna be JUST fine at 63:1 ;)

TEX

What is this Mud stuff people are talking about:confused:

Originally posted by RudeZuk


What is this Mud stuff people are talking about:confused:

It's where these come out to play ;)

http://www.gumbo4x4.com/MNT132.JPG


TEX

I'm at 63:1 :gack: with a manual and 39.5's. For now.
The clutch, it don't like me too much...

face it, it is going to suck. you jumped the gun and bought bigger tires now you have to pay the piper. regear or you will hate yourself. oh and i wouldn't run 7.17's or even 6.17's i have seen the pinions and they look like they came from a zook!

rebuilding mine now, it will be at 60:1

6.17's
345 v8
TF727
Dana 20
divorced Rockwell +- 2:1
42 TSL's


I would go lower if there was a way to do it for cheap, but I haven't found it yet. I think I will be fine with 60:1 with the 345 and the auto. Hell, I've been trudging along on 33's at 17:1, not too good for the tranny and brakes but it would still get it:D

Just do it. no it is not perfect but you said 5 or 6 runs, and that is probably how long your clutch will last, but since it is getting replaced go for it. Driving a setup that sucks is a good learning experience, so go out and play.

heck i am only at 42.9to1 with my 42's and i don't have a problem. i run a 99 vortec350, th400, atlas 3.8, and 4.56's. since i have gone to 42's i would not mind a set of 5.13's but it does work pretty good now. of coarse the v8 and auto help that alot.

Originally posted by high5
heck i am only at 42.9to1 with my 42's and i don't have a problem. i run a 99 vortec350, th400, atlas 3.8, and 4.56's. since i have gone to 42's i would not mind a set of 5.13's but it does work pretty good now. of coarse the v8 and auto help that alot.

Dude that Auto is like comparing apples to oranges with his 4 banger and 75:1...

He's Fawked...:flipoff2:

Originally posted by wngrog


Dude that Auto is like comparing apples to oranges with his 4 banger and 75:1...

He's Fawked...:flipoff2:

he's right... it's gonna suck ass with your 4cyl.

Originally posted by wngrog


Dude that Auto is like comparing apples to oranges with his 4 banger and 75:1...

He's Fawked...:flipoff2:

trust me i know. i was just saying. chris who ran 80to1 with a 4cylinder with only 36's and it didn't like the rocks. it was doable but not much crawling going on. i can't imagine it with 42's.

Originally posted by high5
heck i am only at 42.9to1 with my 42's and i don't have a problem. i run a 99 vortec350, th400, atlas 3.8, and 4.56's. since i have gone to 42's i would not mind a set of 5.13's but it does work pretty good now. of coarse the v8 and auto help that alot.

You know, after my previous setup of a 4 popper, 5 speed, and 100:1, I feel better after hearing you say you run a similar setup to what I mentioned above after I am done with my truck.

Reassuring, to say the least ;)

9-volt

Step away from the keyboard and go outside. Turn wrenches for a week and keep away from the internet. You will be done with your rig. post us some pics when you are.

Just make up your mind and finish it!!!!!

Ron

PS found you a series salisbury if you are still in need (42s need not apply :) ) email me (PM sucks since lance disabled yahoo accounts)

Originally posted by 9-Volt
ok, ill have to look at some way to do a quick and cheap dual transfer then. cause i can see it now, 60hp and 100lb ft of torque with 75:1 and 42s is gonna suck!

also, that 75:1 was with 7.17s in the axles, which i know wouldnt be a problem with teh 4cyl, but once i go to a 454 and 465, i would be worried about the pinions! :beer:

throw in a 350 and call it good enugh

save up the pennies for beef whene ya need it

thats what i'm planing on doing with that scout

350 with some auto probibly 400 with a huge cooler with an exfercase and 3.73 ans 35s will see what happens

Originally posted by high5


trust me i know. i was just saying. chris who ran 80to1 with a 4cylinder with only 36's and it didn't like the rocks. it was doable but not much crawling going on. i can't imagine it with 42's. I don't know about 42's..... but my 4 cyl. with the 36" boggers and 4:88 gears, 4:1 t/c lows , at about 80+ :1 does fine.
I just moved up to 38x14.5's and It'll work.
But....... I'll be puttin' in the dual case August timeframe......in time for Frostoberfest..... :D

Originally posted by tail_lite
I don't know about 42's..... but my 4 cyl. with the 36" boggers and 4:88 gears, 4:1 t/c lows , at about 80+ :1 does fine.
I just moved up to 38x14.5's and It'll work.
But....... I'll be puttin' in the dual case August timeframe......in time for Frostoberfest..... :D

When I went from 38's to 42's at 97:1, I felt it big time!

42's are big. He's gonna eat some serious clutch!

with my 32's I am roughly 40:1 (manual), after the summer when i get the dual in and regear the axle i will be at 102:1 with 35's, I hope I will like it. Currently I feel like I am drag racing in low...

My EB with 44's on it was 68.1.. but it had a 460 in it so it was plenty slow..

My sami is 108.1 with a stock 1.3 and 37's and um well

SUCKS!!! its all throttle and bounce!!!
So get the 42's and gear reduction at the same time...

Mike-

I can smell your clutch burning already... :flipoff2:

I think the guy gets the running theme put the money in the gearing before you go and blow a lot on 42's. Too bad you already did. Even as a newbie I can't think of a better thing to improve than gearing best mod I've done so far.:beer: I'd work on that next. And why does it only need to last until Dec? You haven't even used fifth gear in awhile huh?