ID-ing transmission and transfer case?

[bettabruce]

I own a 75 K5 and I was wondering how to identify

the transmission and transfer case. Also, I don't know how

to tell if my truck has full or part time 4wd. At the moment,

my truck is crippled with 2wd. Thanks in advance.

 

[eclipse]

Are you Auto or manual? If your manual its a SM465... a muncie tranmission.
Your transefer should either be a np205 part-time, or a np203 which is full time.

Auto... should either be a TH400 or TH350 3spds. Quickest is the pan on the bottom, TH400 has a bigger more square shaped pan.

 

[fordslayer383]

check to see if there is a PTO cover IF there is, ita 205 part time

 

[divorced]

TH400 has a bigger more square shaped pan.

I thought the TH350 was more square shaped? It is square except for the corner chopped off.

 

[big83chevy4x4]

the th350 tranny has a square pan with a corner cut off, the th400 has a illinois shapped pan and a 700r4 (not avaliable untill 82) has a square pan.

a np203 and np205 both have pto covers. the np203 is long and has a 1" thick adapter. the np205 has atleast a 3" thick adapter (depending on auto or stick) and has a small cover with 3 bolts holding it on in the middle on rear of the tcase.

 

[eclipse]

doh... your right I got that backwords, the TH350 is the squarepan with the notched corner

 

[mechted]

if the tranny is stock
Manual - Sm465 (Shift Pattern is L 1 2 3 R)
Auto - TH350 (3 speed, square pan with 1 corner 45'ed)

tcase is easiest to ID by shift pattern:
Np203: (Full time - many have been converted to part time)
Low Lock
Low
N
High
High Lock

Np205: (Part time)
4Lo
4High
N
2High

if its not stock, then it gets more complicated]

As for fulltime/parttime, Do you have locking hubs on the front axle?
Yes - Part time (could be np205 or converted np203)
No - Full time (np203)