BigStrok3
Mopar!
Is there a diffrence in length between a drum to drum 7 1/4 and a drum to drum 8 3/4? I was told the 7 1/4 maybe a little shorter is this true and if so by how much?
Rearend length diffrence?
- Thread starter BigStrok3
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1970duster440
Senior Citizen Member
BigStrok3
Mopar!
thanks!
waggin
moving on ain't easy if you drive a Ford :p
That "other place" bigblockdart.com has a tech article on the diffrent lengths and several other dimensions.
There is some bad info in that stupid chart on mymopar.
That hunk of shyate has been floating arounf for years. A friend cut a rear to the 8.75 A body length according to that chart.. WRONG!!!
That hunk of shyate has been floating arounf for years. A friend cut a rear to the 8.75 A body length according to that chart.. WRONG!!!
BigStrok3
Mopar!
I was wondering length diffrence because I have some 15x8 rallye's with 10 inch wide drag radials on them and the just hit the spring. Was hoping the 8 3/4 would maybe be a little longer than a 7 1/4 cause it has a 7 1/4 now and im switching to 8 3/4
mark_68_dart
Active Member
i just did this swap,there is no difference in the width
Capt. Zorro
Well-Known Member
Use some longer wheel studs and put a 1/4" spacer between the drum and wheel.
jimmyray
Well-Known Member
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The chart, at least regarding the "all" A-body 8.75 is incorrect, it should read 52.4", not 51.4". The 8.25 is 51.4"!
I did the swap on my duster, from 8.25 to 8.75 width Dana, and I was able to drop the spacers, and still have 1/4" clearance. Below is a shot of the table contained in the ZIP file document on 8.75 rear ends I found last year.
I did the swap on my duster, from 8.25 to 8.75 width Dana, and I was able to drop the spacers, and still have 1/4" clearance. Below is a shot of the table contained in the ZIP file document on 8.75 rear ends I found last year.
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