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rear dff swap

671 views 2 replies 3 participants last post by  Brentos 
#1 ·
I know this has been asked before but could not find the thread. What is involved in swapping a sterling for a d80?? I want to make it a dually. Thanks for any info.
 
#2 ·
not to steal the thread but I'd like to add, how dose one identify a D80. we have a couple of truks around here that may have one in it.
 
#3 ·
some have a 80 marking on the pinion neck also you can tell by the size of the tubes. a 70 will look similiar to a 60
as far as swapping it out nothing really as long as it is out of the same year it just tsticks out farther also you will need to get a new yoke or driveshaft made to make up for ujoint size
 
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