Adapter between SM465 and NP205

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.

WRW86

Junior Member
Joined
Sep 12, 2024
Posts
11
Reaction score
19
Location
Alberta, Canada
First Name
Warren
Truck Year
1986
Truck Model
K2500
Engine Size
454
Interesting, I always thought the true synchronized versions were available for like 2~4 years and only in the early figure 8 style that ended in ‘84.

@WRW86 your 205 has this oiling vein on the rear cover?

You must be registered for see images attach
Yes, mine has the oiling vein. As I understand, the synchro models were for auto-locking hubs, but I don't know if they ever put those hubs on a 1-ton?

I was under the assumption that the SM465/NP205 was from an 85 K3500, but maybe I'm mistaken. I have lost touch with the guys who put it in. At any rate this is what I have.
If it was from a pre 85 truck, that wouldn't explain the round bolt pattern and 32 spline output.
 

bucket

Super Moderator
Staff member
Super Moderator
Joined
Aug 3, 2010
Posts
30,927
Reaction score
29,781
Location
Usually not in Ohio
First Name
Andy
Truck Year
'77, '78, '79, '84, '88
Truck Model
K5 thru K30
Engine Size
350-454
Yes, mine has the oiling vein. As I understand, the synchro models were for auto-locking hubs, but I don't know if they ever put those hubs on a 1-ton?

I was under the assumption that the SM465/NP205 was from an 85 K3500, but maybe I'm mistaken. I have lost touch with the guys who put it in. At any rate this is what I have.
If it was from a pre 85 truck, that wouldn't explain the round bolt pattern and 32 spline output.

Yes, the auto hubs were available on a 1-ton. @nvrenuf and I were not sure if the auto hubs (and synchro case) were ever available after '84 though.
 

AuroraGirl

Full Access Member
Joined
Sep 8, 2019
Posts
9,758
Reaction score
6,969
Location
Northern Wisconsin
First Name
Taylor
Truck Year
1978, 1980
Truck Model
K10, K25
Engine Size
400(?), 350
You must be registered for see images attach
 

Latest posts

Forum statistics

Threads
44,637
Posts
963,481
Members
37,217
Latest member
Not Loki
Top