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1957-1981 Corvette C1-C3 Speedometer Cable Gear Fitting 345215

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Item ID: 671-576
GM Part #: 345215
Availability: In Stock - Ships today if ordered by 3 PM CT
Only 1 Left, Order Soon!
Fits Years:
  • 1957-1962
  • 1963-1967
  • 1968-1981
$25.99
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  • Description

1957-1981 C1-C3 Speedometer Cable Gear Fitting 345215 - OEM Number(s) (345215)

Restore accurate speedometer cable gear fitment in your classic Corvette with this replacement housing sleeve. Designed for 1957–1981 C1–C3 models, this steel sleeve holds the driven speedometer gear in place inside the transmission and provides the threaded connection point for your speedometer cable. Compatible with both manual and select automatic transmissions using 18–23 tooth speedometer gears, this sleeve is a key component in reliable speedometer function.

Features
     • Direct replacement speedometer gear housing sleeve
     • Threads into transmission case
     • Accepts 18–23 tooth speedometer driven gears
     • 7/8-18 thread for standard speedometer cable connection
     • Compatible with 4-speed Muncie and Borg Warner transmissions
     • Fits Turbo 350 automatic (1978–1981) with 18–23 tooth gear
     • Does not include retaining clip or mounting bolt

Applications
     • 1957–1976 Manual Transmission
     • 1977–1981 Manual Transmission (18–23 Tooth Gear)
     • 1978–1981 Automatic Transmission (Turbo 350, 18–23 Tooth Gear)

Because Details Matter
Don’t confuse this with a complete kit—this housing sleeve is sold by itself, without the retaining clip or bolt. Whether you're restoring a Muncie 4-speed or fine-tuning a Turbo 350, using the correct gear sleeve ensures accurate readings and a solid seal.

Also known under these part numbers: (For reference only)

  • 33997
  • 345215
  • 4337103
  • 4337104
  • 686420068051
  • TM-147
Prop 65