Automatic Transmission Question

[Jeffrey Backes]

I just got off the phone with AAMCO...

Seems that my transmission has seen better days, heck there are LOTS of miles on it so I guess that's to be expected.

I'm sure I read somewhere that there is a drop-in FOUR SPEED AUTOMATIC that can be used in place of the stock 3 speed. Is this true? Is it a good idea?

For around 1.5k parts and labor I can get my rebuild with a lifetime warranty...

Advice?

jeff

[Guest Jeffn]

Man, sounds high for a measley 3 speed Chrysler. I had a late model 4 speed Chrysler minivan done for that amount and also a Mark 8 Lincoln for 1600.

Would love to hear about a 4 speed that fits-I'd sell you my decent 3 speed cheaply if I found one.

And remember that Aamco is an anagram for Maaco-same guy started it, Anthory A Martino Co. if that has any bearing. You know MAACOs quality or lack of it.

[Willhelm Reichert]

I would check with Hemi for a good shop in CA. A lot of "factory rebuilds list the same transmission for Naturally aspirated N/A and turbos. The turbo has a 3,500 rpm stall speed. IE you can rev to 3,500 standing still. Not recommended but it means the turbo will spool faster. With the wrong converter, it will be a slug. Unfortunately the two best TD transmission rebuilders are Cliff Ramsdell in Ct. and Joe dizwill in Canada. They can build the 413 for 400-500 hp with a torque biasing diferential which is useless unless you need it. I agree with the statement about AMMCO.

[Willhelm Reichert]

Jeff, just remembered your directions on the manual boost controller. The only car that came with an automatic and full TII was the 87 Shelby Lancer. I think Mopar learned that the 413 wouldn't take 175 hp.

Now however, you can modify it to take 4-500 hp.

http://www.turbovan.net/Trans3.html The weak differential.

http://www.hometown.aol.com/mopar1mad/caseplug.html Line pressure adjustment plug

http://ripcuda.50megs.com/shift.html shift improvement

http://users.mich.com/~stevien1/trans/valvebod.html another page

http://www.turbododge.com/forums/showthread.php?t=75242&highlight=quaife installing Obx torque biasing differential.

I can't find the page with pics for installing the quaife or OBX diff in the 413. It requires a spacer. Nobody has started manufacture of the spacer yet.You should also get a better torque converter. FDWperformance sells a steet strip one. There is another page about installing extra clutch packs. I'll post the rest of the links when I find them. I don't know if Hemi is up on this sort of thing. The mopartek link is Cliff Ramsdell that will sell you the complete setup.

[Willhelm Reichert]

I found the page with All the modifications.

http://66.78.24.116/Mopar%20Pages/Tranny%20upgrades%20detail.htm

He has extra torque converters made up. PM him on turbododge.com. Also has the quaife obx installation on the page. He is running a twin turbo V6 !!!! I may get one those one day.

[TwinCamFan]

Man, I don't even have a car with the 413 and I want some of those mods <img src="http://forums.aaca.org/images/graemlins/wink.gif" alt="" /> !

Alan

[Willhelm Reichert]

The Quaife/OBX differentials work in the 568 5 speed also. If you have the 16 valve, you can smoke BOTH front tires at the same time.

[TwinCamFan]

During the "Mopars at the Strip" event in Vegas this year I entered the burn out contest with my Quaife equiped 16V Mas powered GLHS. My display was over two minutes worth at 6500 rpms in second gear and I was going to keep going until the tires blew but I chucked the H2O belt and had to let off. The announcer was very anti FWD and goaded the audience into voting for a 70 E body car that spun the tires for less than a minute. At least a half dozen folks came up to me afterwards and told me I should have won. Yes, the Quaife is a nice piece of equipment for a high HP FWD car <img src="http://forums.aaca.org/images/graemlins/cool.gif" alt="" />

Alan