can a 4 speed auto be swapped for a a413

[Mr overkill]

Dont know if it is poss but i thought i would just throw it out


you cant swap in a 4 speed in place for a a413 right



if not i think im gonna just do the .91 transfers and a trans with a lockup to drop highway rpm's

[ShelGame]

You could, if you got a 604/4cyl case from Mexico. They had the 604 mated to the common block down there. But, we never got it up here...

[bfarroo]

The .91 gears do a pretty good job of dropping the RPM's on the highway. My Spirit cruises at about 3000 RPM at 80mph with the .91 gears in a non lockup trans. Made a pretty big difference on the highway. I thought about swapping in a lockup trans but I'm not sure how much difference it would make at highway speeds.

[black86glhs]

The .91 gears do a pretty good job of dropping the RPM's on the highway. My Spirit cruises at about 3000 RPM at 80mph with the .91 gears in a non lockup trans. Made a pretty big difference on the highway. I thought about swapping in a lockup trans but I'm not sure how much difference it would make at highway speeds.

The lockup converter should grab you a 200-300 rpm drop. 2700-2800 rpm at 80 with a 413 trans would be sweet!!

[turbovanman²]

The .91 gears do a pretty good job of dropping the RPM's on the highway. My Spirit cruises at about 3000 RPM at 80mph with the .91 gears in a non lockup trans. Made a pretty big difference on the highway. I thought about swapping in a lockup trans but I'm not sure how much difference it would make at highway speeds.

Wow, that's low, I am close to 4000,

[black86glhs]

Wow, that's low, I am close to 4000,

SUCKER!!!!

[Mr overkill]

perfect thats exactly where i wanted to be then its set .91 with a lockup.

[turbovanman²]

This is the A604 thread.

http://www.turbo-mopar.com/forums/sh...ghlight=thread