73-87chevytrucks.com

73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: necromonger on July 31, 2012, 03:01:48 pm

Title: convert sm 465
Post by: necromonger on July 31, 2012, 03:01:48 pm
the trans is bad in my 2wd i have a trans out of a 4 wd it had a np205 t case what will have to do to put the 4 wd trans into my 2 wd?
Title: Re: convert sm 465
Post by: starkey on July 31, 2012, 04:28:08 pm
if you still have the transfer case, you could slap the 4wd transmission and transfer case into your 2wd truck pretty easily. You'd just need the driveshaft from the 4wd truck. Only thing I see a problem with is cutting your floorboard out for the transfer case shifter. Would be pretty cool, you'd have a double underdrive granny gear! haha! Probably wouldn't hurt to grab the crossmember from the 4wd truck, just to be safe, but I think they utilize the same one.

If you don't have the transfer case, then I'm not sure it'd work, unless you have a slip joint in the driveshaft itself, since the 4wd sm465 is a fixed rear yoke.
Title: Re: convert sm 465
Post by: nvrenuf on July 31, 2012, 06:10:15 pm
It's a tough swap, a 2wd 4spd has a short 35 spline tailshaft where your 4wd will be either short 10 or long 32 spline. You'd have to find a 2wd tailhousing and figure out the tailshaft issue.

Imo, it'd be easier to fix yours or find a used one.
Title: Re: convert sm 465
Post by: Jason S on August 01, 2012, 11:31:51 am
Around my parts, the 2WD SM465 is fairly plentiful. I'd think if you just want a good transmission that swapping in another 2WD SM465 would be quicker, easier and possibly cheaper than converting the 4WD SM465 to a 2WD version or installing the SM465/NP205 into your truck.