Originally Posted by 4-5-6 Chevy Trucks
The Tandem Lock & Overspeed windows are in all of the dash clusters, in '64-'66 and I don't recall on the earlier '60-'63 models, off the to of my head.

Same true for '60 - '63, cluster with provision for Tac & Vac or air pressure gauge have Tandem Lock & Overspeed windows.

Last edited by BC59; 01/10/2014 9:58 PM.

BC
1960 Chevy C10 driver 261 T5 4.10 dana 44 power loc
1949 GMC 250 project in waiting
1960 C60 pasture art
Retired GM dealer tech. 1980 - 2022