Reverse light grommet thats goes through firewall?

[Convertcuda]

Was the 70 grommet a different size than a 71. Also I believe that 71 had a little bracket next to the engine compartment harness block hook-up that held reverse wire.

Anyone of pic of this (info) and know the sizes?

Ken

[anlauto]

For sure two different sizes in 70 vs 71 ....   I haven't ever come across a "bracket" 

[mccannix]

1970 on left, 1971 on right with corresponding tagged numbers for each wiring harness.
I'd have to measure them again but I believe 3/4 inch for 70, 1 inch for 71 firewall hole.

[anlauto]

Great picture Terry

[Convertcuda]

Thanks Terry!!!!!!!!!!!!