guilty by design
+1y
It is a pain. Ive narrowed many-a-ford 9''. Basicly you have to gut the entire rearend, get the tubes cut down and rewelded, then send the axles off to get resplined, then reassemble the whole thing. I got ahold of a 99 3/4ton rearend and found it was 3'' narrower than my 86 group 14. I think im going to be using it when i bag mine unless i can find some kind of load bearing issue. The only bad thing with the 3/4'' rearend is that the pinion is about 3'' further away from the tranny, so i gotta get a new driveshaft.