| |
Labor Day Putting down your wrenches or time for
MORE wrenching? 
Plenty of places to share. | | Click on image for the lowdown. 
====
| | | Forums66 Topics128,018 Posts1,055,261 Members48,417 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
| | THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Nov 2008 Posts: 36 Apprentice | | Apprentice Joined: Nov 2008 Posts: 36 | I have an sm420 tranny that has the i.d. number:95948. It is off a 1967 3/4 ton so it has a back-up switch. On This tranny, reverse is to the passenger and down. Is this normal?
1964 c-10
| | | | | Joined: May 2005 Posts: 8,878 . | | . Joined: May 2005 Posts: 8,878 | My late 40's and 50's model SM420's have this pattern
-- 1 3
R 2 4
If your reverse is on the passengers side, it is likely an SM465.
Does it have external cast ribs/bracing on the case? That indicates an SM465.
Grigg | | | | | Joined: Nov 2008 Posts: 36 Apprentice | | Apprentice Joined: Nov 2008 Posts: 36 | It only has one pto port though, I thought the 465 had two?
Thanks
1964 c-10
| | | | | Joined: May 2005 Posts: 8,878 . | | . Joined: May 2005 Posts: 8,878 | | | | | | Joined: Nov 2008 Posts: 36 Apprentice | | Apprentice Joined: Nov 2008 Posts: 36 | According to the Novak site it looks to be an sm420
Thanks, Lance
1964 c-10
| | | | | Joined: Jul 2007 Posts: 224 'Bolter | | 'Bolter Joined: Jul 2007 Posts: 224 | except the novac site says reverse is to the left and down
and the one in my truck is to the left and down so how can it be
an sm420. by right do you mean while sitting in the drivers seat?
philip | | | | | Joined: Nov 2008 Posts: 36 Apprentice | | Apprentice Joined: Nov 2008 Posts: 36 | Okay nevermind, it is ot an sm420 or 465. The Ptoport is on the passegers side and first gear is like a 5.4 or so, its hard to tell. I found a symbol that reads NP, does this stand for New Process?
1964 c-10
| | | | | Joined: Nov 2008 Posts: 36 Apprentice | | Apprentice Joined: Nov 2008 Posts: 36 | Just figured it out. It is a 1967 New Process Np435. Thanks for all the help.
Lance
1964 c-10
| | | | | Joined: Sep 2006 Posts: 73 Wrench Fetcher | | Wrench Fetcher Joined: Sep 2006 Posts: 73 | i have the same in my 67 3/4. it is listed as the "heavy duty 4 speed" option in the service manual and on the glove box sheet.
Last edited by bucket; 01/24/2009 7:55 PM.
| | |
|
|
| |
