Dana 70 2nd gen axle

[Loaded burrito]

Hey guys i have a dana 70 posi out of a 2nd gen i want to put in my 89 with 3.07s what all mods will need to be done. Are tge perches same width?

 

[Loaded burrito]

Noone knows?

 

[Tx tyre fryer]

I'd say just measure it and see

 

[BIGTRKMAN]

Helped swap a 2nd Gen dually 70 axle into a 91 dually bolted in but it was a lil wider.. not sure on a single wheel