| |
Click on image for the lowdown. 
====
|
| | Forums66 Topics128,281 Posts1,058,462 Members48,490 | | 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: May 2013 Posts: 30 'Bolter | | 'Bolter Joined: May 2013 Posts: 30 |
is the speedometer gear in my 58 chevy 1/2 truck different from say 55,56,57,59,60 being a plastic gear just different number of teeth?
I have tried a few different gears and none seem to catch the spline gear inside trans, where can i get the correct gear for my truck?
Thank you
| | | | | Joined: Apr 2005 Posts: 2,103 'Bolter | | 'Bolter Joined: Apr 2005 Posts: 2,103 | There are some differences. For example: 55-56 3 speed (non overdrive) trucks used a steel driven gear. Cars used a plastic gear. They are not interchangeable with each other as the drive gears are a different size. I'm not sure what year trucks started using a plastic gear - it may have been 58 or 59. You also may not have a 58 transmission in your truck as many things happen over the years.
The number of teeth on the driven gear is matched to the rear end ratio. Various ones can be used. If nothing works perhaps the drive gear is damaged and needs to be replaced.
Fred
1956 3100 Pickup/Red/350/3sp OD/PS/Disc Brakes
1957 Bel Air Sport Coupe/Red/355/TH350/PS/Disc Brakes
2017 Silverado LT Single Cab SB/Black/5.3/6 Speed Trans
1947 Willys CJ2A w/F-Head engine
| | |
|
|
| |
A good Tech Tip
