| |
Click on image for the lowdown. 
====
| | |
7 members (klhansen, 87GN, tclederman, Stovebolt48, Peggy M, baldeagle, 1 invisible),
117
guests, and
1
robot. | | Key: Admin,
Global Mod,
Mod | | | Forums66 Topics128,048 Posts1,055,666 Members48,426 | | 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! | |
#48715 08/05/2005 11:08 PM | Joined: Mar 2005 Posts: 388 Shop Shark | | Shop Shark Joined: Mar 2005 Posts: 388 | Hey guys, never driven my truck but was trying to find out what tranny I have in my '48 1/2t ,sb,deluxe,shifter in the floor. It feels like a 3 just by going through the patterns but could it be a 4? The lol I bought it from did not know . She only knew it was a straight and she didnt know how to drive a straight. Numbers or any help would be appreciated! Thanx ,Mike | | |
#48716 08/05/2005 11:33 PM | Joined: Mar 2005 Posts: 1,029 Member | | Member Joined: Mar 2005 Posts: 1,029 | I believe all four speeds had a reverse lockout lever on the shift lever, so if the shift lever is clean, it is probably a three speed.
Baldy | | |
#48717 08/06/2005 1:16 AM | Joined: Nov 2003 Posts: 53 Member | | Member Joined: Nov 2003 Posts: 53 | A 48 with a three-speed would have a column shifter. It sounds like it has an SM420 synchromesh 4 speed which was introduced in late 1947. To put it in reverse (from neutral), move the lever to the extreme left (against spring tension), and pull straight back. You can never discount the possibility that someone replaced it with a 3 speed. The 4 speed will have a 6-bolt pto cover on the side of the transmission. | | |
#48718 08/06/2005 3:13 AM | Joined: Mar 2004 Posts: 3,068 'Bolter | | 'Bolter Joined: Mar 2004 Posts: 3,068 | A three speed shifter will have brackets and linkages mounting it to the side of the trans. A four speed shifter goes directly into the top of the trans, Scott | | |
#48719 08/06/2005 11:05 AM | Joined: Jun 2005 Posts: 221 Wrench Fetcher | | Wrench Fetcher Joined: Jun 2005 Posts: 221 | if its a 3 speed reverse is to the left and forward a 4spd is to the left and back unless it has later 4 speed which is to right and back. | | |
#48720 08/06/2005 3:00 PM | Joined: Mar 2005 Posts: 388 Shop Shark | | Shop Shark Joined: Mar 2005 Posts: 388 | Thanx Guys ! It's almost like wait and c but Ill find out someway. Mike | | |
| |
| |