The 68 and earlier and early 1969-1/2 used the 4" water pump. This pulley allows you to use the 4-1/2" water pump from 1969 and up.
The 68 and earlier and early 1969-1/2 used the 4" water pump. This pulley allows you to use the 4-1/2" water pump from 1969 and up.