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Global Mod,
Mod | | | Forums66 Topics128,157 Posts1,056,876 Members48,458 | | 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!
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| | | | Joined: Jan 2014 Posts: 74 Shop Shark | | Shop Shark Joined: Jan 2014 Posts: 74 | I know this has been asked before and i have been looking for a while . Who may have a screw in bullet looking speedometer gear for sale these days for a SM420 trans. The kind that screws into the case. THANKS BJF | | | | | Joined: Jan 2013 Posts: 1,518 'Bolter | | 'Bolter Joined: Jan 2013 Posts: 1,518 | You have to match the torpedo to the speedometer drive gear on the yoke or there will be carnage. Different pitchs and gear tooth counts
1953 Chevrolet 3100261 cu inch, sm420, 3.55 rear, torque tube still,omaha orange, still 6 volt, RPO green glass, side carrier spare, all done In the DITY GalleryVideo of the 261 running1964 GMC 1000305 Big Block V6, sm420, the next cab off restoration
| | | | | Joined: Jan 2002 Posts: 2,842 'Bolter | | 'Bolter Joined: Jan 2002 Posts: 2,842 | Yes, the rear wheel diameter will dictate the gear size that screws into the gearbox.
Craig My '50 Chevy 3100 5 window, '62-235cu, 3:55 rear My truck ....... Respect The Rust If I'm not working on my truck, '65 m00stang or VW camper, I'm fishing with the wife or smoking Salmon.
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