Transmission and TCase identification (Muncie + NP)

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

mdesign

Junior Member
Joined
Sep 20, 2020
Posts
7
Reaction score
0
Location
US
First Name
Scott
Truck Year
1976
Truck Model
K10
Engine Size
350
Based on reading online it sounds like this 4-speed with Low gear is a Muncie SM465 and the 4x4 Transfer case is NP205 - any recommendations for bolt pattern identification or otherwise?

Where the truck currently sits boxed in can’t easily crawl under, but will move soon.

You must be registered for see images attach

You must be registered for see images attach


Thanks - barn find vehicle has sat for over a decade. Thinking new fluids for transmission and t case in the future after complete tuneup otherwise.
 

Blue Ox

Turning Diesel Fuel Into Fun
Joined
Mar 27, 2018
Posts
4,886
Reaction score
10,824
Location
LI-NY
First Name
Derek
Truck Year
MCMLXXXV
Truck Model
K20HD
Engine Size
6.2L
So really,... a long range shot of the shifter where we can't actually read the shift pattern, and a close up of the X-fer case shifter with the mirror covering most of the markings? :confused:

Do you think any of this through, or is this supposed to be a challenge?
 

mcarlo86

Full Access Member
Joined
May 17, 2019
Posts
534
Reaction score
933
Location
ND
First Name
Brian
Truck Year
1990
Truck Model
Suburban
Engine Size
350
It's an SM465 four speed. Pretty sure it is a NP205 also. If it were a 203, it would have had 4 Low Lock or something to that effect on the furthest ahead shift position. In 1976, 203 or 205 would be the only T-case options. I am not sure if they put 203's behind many manual transmissions in 1/2 tons. I haven't personally seen one anyway.
 

bucket

Super Moderator
Staff member
Super Moderator
Joined
Aug 3, 2010
Posts
29,101
Reaction score
23,965
Location
Usually not in Ohio
First Name
Andy
Truck Year
'77, '78, '79, '84, '88
Truck Model
K5 thru K30
Engine Size
350-454
Yeah, that's a 205. The stick is round, which is a dead giveaway. 203 had a rectangular stick and was also rarely found behind a 465.
 

Forum statistics

Threads
42,124
Posts
909,607
Members
33,617
Latest member
dougli1
Top