Built aw4

[mountaineerjeff]

I love contradicting information.

I just wanna go fast.

[BADASYJ]

Yo rwkhaus, So what happen to the 32rh, did it blow apart or what, did you fry it? What kind of racing do you do?

Seriously though how in the world will you fit an AW4 plus transfer case in a TJ without welding the axle tube to the frame. There would be virtually no room for a driveshaft. Shit man my rear shaft is like eleven inches long on my YJ and I run a short little three speed.

[BADASYJ]

Keep heading down that path your on Jeff. Dont let the haters steer you off course, it'll be well worth it at the track.

[BADASYJ]

Never mind I figured out how to make an aw4 fit in a TJ. Seems it's been done a few times but only by those looking for lower hwy cruising rpms and better gas milage on the highway in their rock crawling rigs with 5.38 gears. This is about getting down the drag strip quicker not economy and comfort.
Robert, the weight savings alone (30lbs) plus the option to go even lighter is reason enough to swap in the TF on a race rig. Let alone the fact that the elimination of potential problems and issues with switches, wires, more moving parts, and clutches to burn or wear out in the converter is again worth it's weight in gold. The availability of aftermarket support and parts is also far superior to the aw4. Trans brake, reverse shift patterns, and full manual control valve bodies. It's a simple design and easy to rebuild. But yet you stick with the aw4. I honestly see no advantage that the AW has over the TF on a drag race rig. Now in desert racing or overland road racing where the extra gears and lock up would really help on the long runs I will concede, the aw4 would be better suited.

You can't compare with 4.10s in one and 5.38s in the other in a seat of the pants power test. Espesially with 4.10s and a detuned 32RH valvebody made for comfort and economy. You're comparing apples to Brazil nuts man.
The TF6 (904 style) tranny was originally designed to be put behind the slant six, 318, some 360 motors, and the famous Mopar 340 which is by far the biggest power maker out of the mopar small blocks. Remember this was at a time when drag racing was at its hayday and the mopars have ruled the strip ever since. The 999 is an updated and stronger version of that but the main design remains the same. I think that trumps the aw4s claim to fame of being put in some rice burning toyotas Lol

[rwkhaussupply]

Yo rwkhaus, So what happen to the 32rh, did it blow apart or what, did you fry it? What kind of racing do you do?

Seriously though how in the world will you fit an AW4 plus transfer case in a TJ without welding the axle tube to the frame. There would be virtually no room for a driveshaft. Shit man my rear shaft is like eleven inches long on my YJ and I run a short little three speed.

The trans I think is still fine. I had to pull the pressure cable all the way out to get it to shift DD'ing at the higher better rpm though.

The super short SYE with the AW4 and 231 is the same overall length as the reg cheapy SYE with the 231 and 32rh.

Yes have to run 4.11's with the 35's and a 3sp, if I want to drive on the fwy. With the OD aw4 I was able to run the 5.38s and 35's and still not enough gear To even get close to topping out on track. But thats the lowest for the GM14T and rockjock60. And yes, not a drag strip car. I needed crawl and top end, so the AW4 was perfect. Its a great trans for about 99% of jeeps out there. The gearing is by far superior to the 42, and stronger. sucks they pulled it from the Jeep lineup.

As for manual valvebody. The aw4 has a great option in the shifter that makes it 100% manual. Winters shifter with the RAD kit installed, and you have no differences than any other shifter. You simply shift to the gear you want.

Again though for me and typically all Jeeps the AW4 is perfect. For a strip car, I cant comment on. As a Jeep is one of the Least thought of race cars out there. I mean you see more pintos and gremlins out there than jeeps.

[mountaineerjeff]

And that's why I love it! Even less common is racing with the i6

[BADASYJ]

You never get close to topping out on the track with 5.38 gears? Why in the hell do you have an overdrive and lockup converter? You just sank your entire argument with that statement.
Well it's now obvious you really haven't researched this at all and are just running with the pack. It makes absolutely no sense whatsoever to keep the aw4 in a race rig unless mandated by the rules. The aw4 is at a minimum 30lbs heavier with a potential bird nest of wiring issues, more moving parts, and a clutch in the converter. It's a no brainer dude. The aw4 is handicapping your race rig Robert. A similar built rig with a modified 999 would leave you in the dust all day long.
Gearing is
Aw4; 2.80, 1.53, 1.00, and .70 overdrive
TF999; 2.74, 1.54, and 1.00
Unless you race in overdrive there is no advantage in gearing whatsoever, even then that could be rectified by a gear change if running the 3 speed.

So I still have yet to hear of one advantage the aw4 holds over the 999 when it comes to racing. In a grocery getting pavement princess the aw4 will reign supreme as it was built for comfort and economy. No argument there.
The Torqueflight transmission is what sent the mopars to the front of the pack at the drag strip more then anything else. The Torqueflight 6 (904 style) was designed with performance in mind as it was designed during the hayday of drag racing mopars. The famous Mopar 340, which is by far the biggest powerhouse of all smallblocks had the Torqueflight 6 put behind it. Professional race teams running big block mopars upgrade their 727 trans with 999 parts. Strength will never be an issue with a 6cyl jeep motor, no matter how much work has been done to it.
Not to mention the TF is an American designed and made transmission put in an American made jeep. That alone is worth the swap in my opinion. Lol

[BADASYJ]

Ok, so now that I'm to the point of repeating myself. I think I've said all i got to say about the subject. Lol

[Killerfrog79]

Heres just a thought.... JEEPS ARE NOT MEANT TO BE RACED. Just stating the obvious. Why you would ever want to make a Jeep a track vehicle is beyond me...

[Russ Pottenger]

Heres just a thought.... JEEPS ARE NOT MEANT TO BE RACED. Just stating the obvious. Why you would ever want to make a Jeep a track vehicle is beyond me...

Wow, .... You really don't know that much about Jeeps

[jsawduste]

Better not tell the JEEPSPEED gang. Just to pick one of dozens upon dozens of organized groups.

So Utra4 doesn't really exsist ?

[Flash]

ok here i go
Aw4 tuff as nails DON'T GIVE A CRAP IF ITS MADE BY TOYOTA!!!!
If im drag racing a jeep, like he is 998-or 999 all the way!!!!

You can't get crap for a stall converter for ANY LOCK UP TORQUE CONVERTER(TQ) auto tranc!
The sky's the limit for TQ stall on a 999
less weight (a plus)
less rotating weight (a plus)
Lower first gear = better 60" (a plus)
You can get a manual valve body from just about any wheres.
Transbrake are available and on all the fast ones.
built right, you can load all the laughing GAS the motor can take and not brake it.

The bad. You will need to do a lot of research to get it in there and ready for a race.
If you're going to us a 32re KEEP THE AW4
It will also cost you more then a grand to build it right + TQ

With the same stall as you have now. I bet it's 2 tenths quicker. Then add the shift kit, tranbrake.

[mountaineerjeff]

Problem is finding a 999. From what I've found ALL 999 are 4wd. And then I need to trust myself in ordering the right combination of parts and hope I can build it. I could probably handle the build, but I can't even get to that step.
If anyone wants to help out, or knows a shop that would be interested in sponsoring the fastest jeep powered Cherokee then send them my way. It makes me sick to think about how long it's been since I've done something to make it faster

[DaemonForce]

You can always get a TF904 from a Hornet, Concord or Spirit. You are limiting your own range of options by being stuck on the 4WD platform when searching for RWD parts. Worst case scenario, you can go manual and swap in a T-4 from this 1AMCA0856BK124642 and get a distinctive advantage off the starting line. There are numerous Texas yards that have been getting a LOT of these RWD transmissions lately and I'm pretty sure it's thanks to this recent American/Rambler dump that's been going on all year. My Borg Warner M-44 probably has a similar candidate in that mess somewhere too.

If you can find a Wrangler yard, go there. Now. What you're looking for is extremely rare and probably comes out of a TJ. These parts are either picked or already on their way to the crusher.

[mountaineerjeff]

I am for sure staying auto. And I thought the tf999 was inherently much stronger than the 904 And, I'll still need a bell housing.