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Yes they are similar but there is mounting differences. the 76/77 interchange within those years only. Likewise the 78/79 interchange between those years only. I don't know why chrysler did that, but thats what they did. The inner structure was changed in 78.


Fred

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Fred isnt the spacing of the bolts that mount the bumper assembly to the "impact shock absorbers" the same? I have a 77 rear bumper and the bolt spread is approx. 44-1/2" and 4-1/2". I believe the 79 I parted was the same spread

edit: I know the inner structure changed a lot from 76/77 to 79 but arent the mounting points to the frame the same? I believe the 5mph shocks were the same, but I'm not certain...

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can anyone tell me the difference ?

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'77 front bumper:




See how there's no lip that wraps around the edge? The lip is present in '79s and that is where the inner structure bolts, but that may be on bumpers which have bumpers guards only. I've only checked out '77 and '79 front bumpers in detail.

There should be at least four part numbers for 76-77 and '78-79, each with and without the rub strips...not sure if with bumpers gurads is another part number or not.

I think Jim is correct in stating that the bumper shock absorbers mount the same in all F-bodies- it's the inner structure that's different.

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There should be at least four part numbers for 76-77 and '78-79, each with and without the rub strips...not sure if with bumpers gurads is another part number or not.

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