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-   1973 - 1979 F-100 & Larger F-Series Trucks (https://www.ford-trucks.com/forums/forum38/)
-   -   1978 F-150 Rear ?s (https://www.ford-trucks.com/forums/357936-1978-f-150-rear-s.html)

dakuda 03-21-2005 08:26 AM

1978 F-150 Rear ?s
 
OK, I may be bable to get a 1978 Ford 9" rear end out of a Ford F-150. Any clue on the spline count/bearing size that was typical for this year. I tried wading through google search and a search on here, but was unable to find anything.
Thanks

beeboy 03-21-2005 07:52 PM

should be a 31 spline. Carrier bearing is 2.89

LxMan1 03-21-2005 10:36 PM

It depends on the GVW of the truck and the original engine. Some were 28 and some were 31. Most V8's were 31 spline.

oldhalftons 03-22-2005 12:09 AM

78 is 50/50 28 or 31 no way to even geuss.

79 would definatly be a 31


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