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Canadian Poncho Homepage -> Canadian Poncho -> 65-70 Full Size Chassis Tech Forum -> 1968 pontiac catalina bumper bolt size
Post Info TOPIC: 1968 pontiac catalina bumper bolt size
tramminc


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1968 pontiac catalina bumper bolt size
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Their are 4 bolts holding the face of the bumper on the brackets, what size are they 1/2 or 5/8 carriage?

And how long?



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4SPEED427


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Strictly a guess on my part, I don't have a parts book for your year of US Pontiac but I am guessing 1/2". I don't think I've seen any 5/8" bolts on GM 60's chrome bumpers.

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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars
seventy2plus2


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I've got a 69 bumper in the back yard, I'll take a look but I'm pretty sure they're 1/2" carriage bolts. I'll also take a look as to length.

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seventy2plus2


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This is for a 69 Parisienne bumper, which is very similar to your 68 bumper. The carriage bolts are 7/16" x 1-1/4" long.

The slot in the bracket to hold the carriage bolt is only 7/16" wide.

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70 2+2 convertible
70 2+2 hardtop
70 Parisienne hardtop
72 GMC Sierra

 

 
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