BE SURE YOU INSTALL THEM CORRECTLY!

1961-69 STANDARDS 

• #1 and #2 long bolt (1 13/16) with shoulder and NO washer
• #3 and #4 short bolt (1 9/16) NO washer
• #5 thru #9 short bolt (1 9/16) WITH flat washer (0.070“ thick)

ALL POWERGLIDES USE WASHERS ON ALL BOLTS.