I do have a question as to what these bolts are called and how they come out. I assumed I could use a jam nut to get them off.
Ayuh,.... Those are studs, 'n probably held in place by loc-tite,....
Abit of heat to the base of the stud should allow 'em to come out usin' the double nuts,....
Cinch the nuts good, 'n tight, then turn the bottom nut out,....
Another question is my front mount is corroded as far being able to adjust later on it might not work as well as it should. I looked up replacement for them but WOW they are pricey!! Could I just swap the bolt out with a 5/8 grade 8 bolt with new hardware?
If ya take 'em completely apart, you can probably save 'em by wire-wheelin' the adjuster stud clean,.... then grease 'em,....