factory 4 speed ???

[m00n1957]

i have never seen a factory 4 speed in a square, would this truck have a granny low 4 speed or a regular 4 speed ?
http://jacksontn.craigslist.org/cto/2862736818.html

[gmech]

I had an 81 with a 4 speed. It was a New Process A833Y. I believe that only the 3/4 - 1ton trucks had the Muncie sm465 in them. The NP is Aluminum and the Muncie is steel.

[Corts60]

I had an SM465 in my '80 1/2 ton 4x4 from the factory.

[Keith Seymore]

Originally Posted by gmech

I had an 81 with a 4 speed. It was a New Process A833Y.

Correct. RPO MY6. It's a MOPAR trans with third gear as 1:1, and 4th gear as .73:1 overdrive.

That is the trans I have in my truck.

Originally Posted by m00n1957

i have never seen a factory 4 speed in a square, would this truck have a granny low 4 speed or a regular 4 speed ?
http://jacksontn.craigslist.org/cto/2862736818.html

By the way, we built about 15 million of these square body trucks so, in spite of the seller's comments, there's not too much about them that's rare.

K

[hatzie]

Originally Posted by gmech

I had an 81 with a 4 speed. It was a New Process A833Y. I believe that only the 3/4 - 1ton trucks had the Muncie sm465 in them. The NP is Aluminum and the Muncie is steel.

I had an 85 C10 with the SM465. Bought it with 45k on the clock.

[MalibuSSwagon]

Yes that depends on the option ordered. My 86 C10 was ordered with the SM465, which also includes a 2 piece driveshaft. Strange thing to see on a short bed truck.

[Jeepwm69]

Dad's 83 GMC 1/2 ton SWB has a SM465 with two piece driveshaft.

[jonabalco]

i have a 1/2 ton 1970 GMC i'm restoring right no an the trans is a SM465 and it's bolted to the 305 V6 an the only difference for the V6 and V8 is the bell housing same low gear tranny

[Your41Plague12]

95% of the 4 speeds were an SM465, the others were the mopar trans mentioned already. They're a dime a dozen with 4 speeds in them, don't let him kid you.