Auto Transmissions in crawlers

monstaru · Nov 16, 2011

So i see that alot of folks are running the 4l60e.How many run an AW4 properly cooled and such?What about TH400?

REgardless I will have to make it fit.So I am gathering intel and opinions.
cheers

Avanteone · Nov 16, 2011

What exactly are you asking?

I run a 4L60E with Trans-Go manual kit (allows to hold 1st and 2nd, but retains auto operation in D or OD) and have beat the living snot out of it for a couple years now.

I've also run the AW4 and so do many guys in my Jeep club, it's a very durable trans. with some decent aftermarket support as far as shifters and such.

Th400 is very bulletproof and strong, but is obviously only a 3 speed.

the 59 fiat · Nov 16, 2011

been beating my toyota auto for a couple years and still going great. the auto has 26 spline and manual is 23 spline. its weird.

Ty. · Nov 16, 2011

Beat the hell out of my turbo 350. They are very forgiving on the drivetrain. I'll be running a turbo 350 in my buggy as well.

jeepmauler · Nov 16, 2011

I beat the poop outa a AW4 in my old XJ truggy...as in two years of full throttle "first to reverse" type action. I dissabled the nuetral safety switch so it would start in any gear (very dangerous but very exciting:redneck

, I ground the shifter gates to make the 1 to R easier and ran a big ass cooler.......tranny never flinched

Hip · Nov 16, 2011

My th 350 is pretty slow from first to reverse with a reverse manual valve body in it, and i do wish i had a fourth gear as i got plenty left after third is wound out.

jeepmauler · Nov 16, 2011

Hip said:
My th 350 is pretty slow from first to reverse with a reverse manual valve body in it.

Even sitting on flat ground .......or only on a vert..........cuz you want that bish to be snappy:eeek:. How over full is the tranny,what stall TC, does it quicken up with the rpm's up? Your gonna smash that fancy hood if'n you don't get that sorted out:beer:

monstaru · Nov 16, 2011

jeepmauler said:
I beat the poop outa a AW4 in my old XJ truggy...as in two years of full throttle "first to reverse" type action. I dissabled the nuetral safety switch so it would start in any gear (very dangerous but very exciting:redneck, I ground the shifter gates to make the 1 to R easier and ran a big ass cooler.......tranny never flinched

AWESOME to hear..........welp, I was leaning towards trying the Aw4 anyway.I had read a few things about people not liking them.But I think I'd take a bit of info a little more serious from here.Because of abuse use.:redneck:.
f'ing awesome.

Sorry Avanteone, I am figuring on mating an auto transmission behind a Subaru engine.I have the option already to mate a W or R series tranny from a guy in Ohio.(BIll Hincher).
I would like an auto from the get go, and the Subie autos, are pretty weak with no aftermarket support, or options.
I Know of aguy that has a THM350 to an EJ series motor.So i have seen that.But I really want a Jeep trans, and the stockish option of Dana300, and or eventually an Atlas( I know , I know trying to plan,right? :looser

)
cheers

Avanteone · Nov 16, 2011

The AW4's are plentiful, cheap, and strong. I'd say you're leaning the right direction.

Ty. · Nov 16, 2011

If you plan on clocking it flat, you might ask Mauler, or someone if you can with than transmission. I looked into clocking a 300 flat on my th 350, but because of clearance issues with the front driveline, and the tranny, I couldn't do it.

Hip · Nov 17, 2011

jeepmauler said:
Even sitting on flat ground .......or only on a vert..........cuz you want that bish to be snappy:eeek:. How over full is the tranny,what stall TC, does it quicken up with the rpm's up? Your gonna smash that fancy hood if'n you don't get that sorted out:beer:

yeah on flat ground and full. im thinking something is wrong inside. it get seriously worse when low.

stock stall, yes RPMs help.

whatthe? · Nov 17, 2011

Big coolers and I always put a deep tranny pan with baffles in available with an extended pick up. Seems to help when you're really tipped.

JOOP · Nov 17, 2011

I'm beating the crap out of an AW4 with a baja shifter. Just switch from stick to auto a few months ago and have had it on about 6 trips so far with no issues. And I'm not scared of the skinny peddle.

monstaru · Nov 18, 2011

JOOP said:
I'm beating the crap out of an AW4 with a baja shifter. Just switch from stick to auto a few months ago and have had it on about 6 trips so far with no issues. And I'm not scared of the skinny peddle.

Sweet.Thats great to hear.What would you guesstimate your horsepower at Joop?

JOOP · Nov 18, 2011

monstaru said:
Sweet.Thats great to hear.What would you guesstimate your horsepower at Joop?

250?? I dont know I never dyno'd it. It's a 4.6 inline 6 stroker with GM TBI efi. .. Mine has a lot of low end torque.

TreeClimber · Nov 18, 2011

JOOP said:
250?? I dont know I never dyno'd it. It's a 4.6 inline 6 stroker with GM TBI efi. .. Mine has a lot of low end torque.

You're probably well under 200

Stock, it was something like 120 HP. Stroking it helped, but I doubt it doubled.

Heck, my 350 TBI motor stock was probably only 200, and when I changed cams, exhaust, and put on the bigger throttle body, I probably only boosted my engine to 250.

monstaru · Nov 18, 2011

sweet, so I 'll be right on par with 250 stock!:awesomework:
Trying to make a deal on a Dana300 right now, Should be getting an AW4 bellhousing from TRashy this weekend.Then to go get a trans from the yard.

I can start fiddlin with makin an adapter setup for it to fit my engine.
cheers

jeepmauler · Nov 18, 2011

Just in case..........http://www.pnwjeep.net/forum/viewtopic.php?f=9&t=28915

EDIT....trans sold.....oh well. If I see one for sale I'll post it up in case your other avenues fall through:beer:

JOOP · Nov 18, 2011

TreeClimber said:
You're probably well under 200

Stock, it was something like 120 HP. Stroking it helped, but I doubt it doubled.

Heck, my 350 TBI motor stock was probably only 200, and when I changed cams, exhaust, and put on the bigger throttle body, I probably only boosted my engine to 250.

Yeh you're probably right. Maybe I'm around 160. I don't know. Never really cared to check. It has plenty of power for what I need. Having an auto made it much easier to play on the rocks.

monstaru · Nov 18, 2011

jeepmauler said:
Just in case..........http://www.pnwjeep.net/forum/viewtopic.php?f=9&t=28915

EDIT....trans sold.....oh well. If I see one for sale I'll post it up in case your other avenues fall through:beer:

:beer:
I'd be lookin for one made after 1991,I'd even take one with a 231 attached:redneck:
cheers