Built aw4

[amceaglesx4]

Name one person you know who has blown up an AW4 to shit ???

[BADASYJ]

Come on man, who said anything about it being weak and blowing apart? My posts have all been about the performance aspects of an aw4 and 999. When compared side by side for performance mods and getting down the track faster (which is what Jeff is looking to do) the 999 wins hands down. Thats all I'm trying to say.
This right here is the problem with the jeepstrokersforum. Other then one post from sliver, ya'll have contributed absolutly nothing to this post to try n help Jeff. Its like a big nut swinging fest on slivers posts though. If ya'll don't have anything to contribute to help out Jeff, then don't post it's that simple.

[amceaglesx4]

First of alll silverxj knows his shit pretty good. Second if he wants faster throw a shift in and 5:30 gearsets. Problem solved without dropping a couple grand on a trans just because it shifts 100 rpms higher. Unless he has 500 ft lbs of torque the aw4 will take his abuse. Silver xj , you with me on this ?

[BADASYJ]

Ohhhhh if only it was that easy to go faster.
You should check out Jeffs build thread and see what he has done to his Cherokee. Then you will have a better understanding of what he's looking for.
Flirting with 500 ft lbs isnt far fetched at all when you're on the spray.
Sliver knows it takes more then gears n a shift kit to go fast, I don't think he's coming to your rescue on this one. Lol

[jeepman]

These guys are the only place I ever found that had upgrades for the AW4 but pricey...

http://www.importperformancetrans.com/index.shtml

[mountaineerjeff]

whoa, you guys got a little dramatic while I was gone.

yes im only talking about going fast, so i want to do that as reliably as possible while using a trans that is an easy bolt in affair.

if the 999, which i know nothing about, can do this, then im all for it. if I could get a built trans for 1000 id buy it right this second. my big issue, is I always planned on staying with the aw4, so if something else is an options I would REALLY like to keep my driveshaft.

[DaemonForce]

What are your diffs and gears?

[mountaineerjeff]

Even though I don't see the connection to my question....I'm running the 8 1/4 with 3.55s

[mountaineerjeff]

So I've been doing some research on these TF9xx transmissions, and they seem perfect for what I need, I just can't seem to sort my way through all the differences. Like I see the tf999 is the best starting point, but can a 904etc be upgraded to the same capabilities? Where's a trustworthy place to get parts etc? I've got money ready to go, if I can just figure out where to send it. I've got a race on the 22ND which would be awesome to make it to. And I'd be ready to spend as much time as needed to make it happen if I can just get the parts that I need figured out.

I also still need to make sure I can find the trans in 2wd or if my tail housing will work, along with overall length so j can keep my drive shaft.

[DaemonForce]

I'm running 2.72 gears and would frequently complain about too much pressure on my diffs in the snow and not enough power on dry pavement so your ratios are probably going to handle a TF much better than the junk that has blown up on me numerous times. Your acceleration is going to be ace. Top speed is going to suffer by roughly 20-25MPH, but you'll always have more power.

Your transmission length shouldn't be too much concern if it's within 1" of the original lengths. Your swap candidates are the TF999 and TF998. To my knowledge the TF999 can only be donated from Wranglers and is the only fast swap transmission. You can still get a TF998 from an Eagle and drill a crank trigger port in the bell housing but you're going to need the early 90's 4.0L flexplate and the rest of that guide is long lost in some cjoffroad article. As is my case always, you're on your own.

[mountaineerjeff]

Yea, I'm a little concerned about my top speed, but I guess I'll deal with that when I have to.

So what year wranglers have the 999? I'm hoping I can use my crank sensor and flexplate that way?

Any suggestions on parts to make it handle a strong I6 with a power adder?

[mountaineerjeff]

Also I'm guessing all the wrangler 999s are gonna be 4wd?

[DaemonForce]

That's the general idea, yes. If you're updating a RWD Jeep, that's a problem. It means you're stuck with the A904 design that only made the linear evolution to support the 4.0L and NP series 4WD system. I believe 89-95 Wranglers used the TF999 but you have to verify that for yourself when you locate a donor. I know it's blind and a little stupid but that's the way I've done it. There's also the issue of these rarely being dropped in ANY yards so that's also a pain.

[jeepman]

The TF999 is for NON fuel injection engines even though it can be used with fuel injection..

The 32RH is the Modern adaptation to the TF999, basically the 32RH has the same internals
as the TF999 but with a lock up converter and has provision for the Crank sensor a TF904
has the same internals as well but the housing Is for a 4Cyl...

[rwkhaussupply]

The TF999 is for NON fuel injection engines even though it can be used with fuel injection..

The 32RH is the Modern adaptation to the TF999, basically the 32RH has the same internals
as the TF999 but with a lock up converter and has provision for the Crank sensor a TF904
has the same internals as well but the housing Is for a 4Cyl...

I am on a 4.6 with the new fully reworked and highest flow 4.0 head tested or at least documented to date. With everything else to support it engine wise. I have a 98 TJ. So the POS 32rh, or what ever else you want to call it in different clothes. with a 4.11 gear on 35" tires.

I recently (ok 5 years ago to 3 yrs ago) built a Ultra4 XJ with the same engine but less head. AW4 trans. That Jeep I ran about 700lbs heavier. Had 5.38 gears, & 35" tires. And was by far faster, nicer shifts, and easier to control, than this POS 32rh. So if your comparing a 32rh to a AW4 then, there is no comparison,IMO. The power loss for one is Major in the 32RH, over the AW4. Maybe its the 4.11 to 5.38 gear difference. Maybe its the converter, maybe its IDK...

I am currently swapping the 32RH out of the TJ to a AW4, should be completed next week or so. I have the 32RH you can have for 50$, throw in the converter and flexplate even.

I have never seen personally, the AW4 fail, in any sense. There was one other local guy racing that said, I think, he lost 2nd or something. But I ran likely about 350HP and about that Tq, in what they say is the most grueling off road race in the USA, as well as a short course type race, as well as many trails. All on it hard, with only a setrab nice sized cooler and never once had an issue. I never let up on landings, and would hold shift till I wanted and never babied it.

Others can have opinions they want, and even facts that they believe or read. Or what ever. All I know is that in my personal experience, I would Never use a 32RH in place of a AW4 for what I have built for in the past. Your application might be different...