run the numbers to see what i found...

[jones]

actually,i'm pretty sure of what it is.i'd just like to have my suspicions confirmed.(numbers:GM 591665) I was wandering around my father-in-law's yard the other day and found an old top loader 4-speed w/ one PTO cover.no t-case attached though.by comparing it to Peterson's stick-shift tranny tech article,i'd have to say it's a SM420.if so,it probably would need to be rebuilt after being burried in the weeds for so many years.where would i find a rebuild kit?and maybe a divioced t-case?

 

[GMCLegacy]

a 420 had 1 pto cover on the drivers side, a 435 has 1 pto cover on the passenger side.

 

[jones]

so where do i get a rebuild kit?do you think it would be good as is?

 

[GMCLegacy]

not sure about a rebuild kit, those transmissions havent been built in a "few" years. i have seen 465 rebuild kits on ebay, but not for a 420.

id pull the top cover and inspect the condition.

does the transmission spin freely?

 

[ryoken]

here's a couple links i found for a buddy with a 420

http://www.novak-adapt.com/

http://www.hermtheoverdriveguy.com/id3.htm

http://members.cox.net/cglabe1/SM420/sm420.html

http://www.drivetrain.com/vartransp24.html

 

[big83chevy4x4]

i can hook you up with the tranny rebuild kits, ill have to look up the price though.