AMC Eagle Den Forum

The Shop => Transmission Shop => Topic started by: BAD-BIRD on March 11, 2011, 08:27:23 PM

Title: Auto to 4-speed swap
Post by: BAD-BIRD on March 11, 2011, 08:27:23 PM

Hello all it has been a while but I need some info and it would be grateful! I have an 84 eagle wagon with a 4.2 and an automatic! I had the tranny rebuilt twice now in less than a year and am tired of messing with it! SO I want to put a 4speed in it! I found a whole parts car it is an 82 SX4 with a 4 cylinder! So here I am, I know I need a flywheel and a bell housing! But am having trouble locating one! Does any one have either or both they would sell if so I am interested! Also does any one have any reason this wont work! When I get finished with the car I will sell parts off it or the whole car! It is pretty rough but has several good parts! Thanks for the info and help!

Title: Re: Auto to 4-speed swap
Post by: mudkicker715 on March 11, 2011, 08:33:09 PM

Did this exact swap last fall. Look for the how to in the pedia

Title: Re: Auto to 4-speed swap
Post by: BAD-BIRD on March 11, 2011, 08:49:43 PM

Are you happy with the swap? Could you give me a pros and cons of what you have seen with it? Power/MPG-better or worse? Thanks for the help!

Title: Re: Auto to 4-speed swap
Post by: rollguy on March 11, 2011, 09:11:33 PM

Would not the Iron Duke have an SR4 trans?   Is that one strong enough for the 4.2?   I would think a T5 would be better.

Title: Re: Auto to 4-speed swap
Post by: mudkicker715 on March 11, 2011, 09:42:59 PM

What rollguy said

Mpg is same. But better take off. Meaning in 4wd I have spune the left front tire on dry pavement. Its tied to a stroker. But it lifts that. Side up when flooredwhen making the 1 to 2nd shift.

Title: Re: Auto to 4-speed swap
Post by: eaglefreek on March 11, 2011, 11:27:25 PM

Quote from: rollguy on March 11, 2011, 09:11:33 PM

Would not the Iron Duke have an SR4 trans?   Is that one strong enough for the 4.2?   I would think a T5 would be better.

If I'm not mistaken the 82 should have a T4. However since it is a 4cyl. it will have a smaller input shaft than a 6 cyl. tranny. I had an SR4 in my 81 Eagle and it worked great.  The biggest problems was with slave cylinder and then the shifter breaking.

Title: Re: Auto to 4-speed swap
Post by: BAD-BIRD on March 14, 2011, 06:21:20 PM

Thanks for the help and I am heeding your advice! I found me a 5 speed out of an 85 eagle that was mounted to a 258! The problem I now have is the tranny does not come with a shifter! And I am assuming the pedals and other odds and ends can be used from the sx4 donor I bought! I also now will have parts off the sx4 for sale! Thanks folks!