| |
Click on image for the lowdown. 
====
| | |
0 members (),
139
guests, and
7
robots. | | Key: Admin,
Global Mod,
Mod | | | Forums66 Topics128,077 Posts1,056,033 Members48,433 | | 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!
| | 
#24405 09/18/2002 7:16 AM | Joined: Jan 2001 Posts: 12 Member | | Member Joined: Jan 2001 Posts: 12 | I am having trouble finding synchro rings for my SM-420 out of a '64 half ton. Wanted to rebuild trans because it grinds when shifting into 3RD. Parts man told me to just swap to a 465 because rings are not being made any more. Is this true? What are the differances between the 420 & 465 transmissions?
'64 C10-292 with TBI, 4speed, 3.42 rear
| | |
#24406 09/18/2002 9:24 AM | Joined: Feb 2001 Posts: 1,897 Member | | Member Joined: Feb 2001 Posts: 1,897 | Talk to National drivetrain in Denver colorado.They may be able to help.They may even have the 420 I sent them for a core 
There is enough good in the worst of us and enough bad in the best of us that it does not behoove any of us to criticize the rest of us.
-
-
Be yourself. If you are ever lost, It will be much easier to find yourself if you know who you are!
| | |
#24407 09/18/2002 12:15 PM | Joined: Apr 2002 Posts: 146 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2002 Posts: 146 | I got parts for my 420 from obselete chevy and northwest transmission. If all else fails I'll sell my used ones to you cheep. Emailme at [email protected]
if it dosen't need fixed, break it
| | |
#24408 09/18/2002 2:51 PM | Joined: Mar 2001 Posts: 316 Member | | Member Joined: Mar 2001 Posts: 316 | Eb 1, try this SM-420 . There is a parts link at the botttom of the page.
*** GMC ***
| | |
#24409 09/18/2002 10:08 PM | Joined: Feb 2001 Posts: 1,897 Member | | Member Joined: Feb 2001 Posts: 1,897 | Um,, I was just reminded,,,,I am off to see what a GMC manifold weighs for shipping :o
There is enough good in the worst of us and enough bad in the best of us that it does not behoove any of us to criticize the rest of us.
-
-
Be yourself. If you are ever lost, It will be much easier to find yourself if you know who you are!
| | |
#24410 09/19/2002 3:33 AM | Joined: Jan 2001 Posts: 12 Member | | Member Joined: Jan 2001 Posts: 12 | Thankyou for the info! I knew someone here would have a source or two. Thanks again -eb
'64 C10-292 with TBI, 4speed, 3.42 rear
| | |
#24411 09/24/2002 6:25 PM | Joined: Nov 2000 Posts: 1,969 'Bolter | | 'Bolter Joined: Nov 2000 Posts: 1,969 | I saw some SM-420 parts on eBay last week. Have you tried there. These were NOS, reportedly.
Professional Novice
| | |
|
|
| |
