Hey guys I have a 98 4.0 with a 42RE. Does anyonr onow if i can bolt a AW4 up to it or does a lot of mods have to be done?

 

Too many mods required to achieve very little gain.

 

Agree. The 42re despite all the bad press, with clean fluid, bands correctly adjusted, and new solenoids, maybe an output speed sensor, is pretty good stuff. A lot of other things can affect it like tv cable, and worn dizzy shaft, but as you make the repairs you will see it improve the risk/reward is not worth the swap. 'generally'. Oh, another thing is a bottle of Lucas transmission fix. Restores some like pressure, and I had no probs yet after 5 months.

 

My experience with the 42re has been illuminating. I bought a grocery and kids transporter with 125K on it with full service records from PA. I've put 67K on it using it for delivering newspapers; constant stops and starts, K-turns, downshifting on hills, and heavily loaded. It had a T-Tech (full fluid transfer) service at 105K and I changed the filter and pan contents at 165K. The pan showed NO debris, a little grey material settled in the pan and a few tiny whiskers of metal on the magnet. More like a 5-o'clock shadow than a beard! The only thing making it show it's age is being a little slow to engage at sub-zero temperatures. I fix that by warming it up in neutral before starting out of the driveway. I still shifts solidly and cleanly when asked to, like accelerating for a merge or passing. It has 192K on it now. It DOES need a torque converter solenoid, however. All in all, I think that's pretty good service.

Personally, I have a "thing" about additives. Most of them just soften the o-rings for better sealing, but they tend to get brittle shortly afterward. JMHO.

 

Cool. Ill keep that in mind when i rebuild it soon.