I did a quick check end of day for caster and pinion angle with weight on it since we laid it out at ride height vs with weight on it.
Solid 4* (or more) of caster and 5* on the pinion. Radius arms are nice and flat, coils are nice and straight with no bows or wonkiness. Shock bushings are not binding at ride height. The panhard slide right in with no bind.
This was the point of cutting all the brackets off the axle housing and setting it up from scratch. Went with the Delta arms simply because it was not possible to get it where we wanted (in particular for caster) without the tie rod hitting the stock radius arms. We laid it out and tired but could not get much better than 2-2.5* of caster with stock arms and stock bushings. We were going to do a cut & turn but it was not needed to get it where we wanted and better than stock. I think geometry wise it is even better than just bolting in the radius arms due to the reason I pointed out above. Not sure what the Delta 3L arms are supposed to give for caster with roughly 3.5" of lift but I am real happy with 4+*. Again we are using the Delta arms to clear the tie rod to the arms since they have more clearance than a stock arm. I don't think they are generally flat though when bolted in, my Blackhawks certainly are not, the bow down at the bottom bend reducing ground clearance. It's been since 2018 since I have bolted in Delta arms so I don't recall all the details. I will post lot's of pics as we finish it up and get wheels back on it so you can see it is sitting all just real nice geometry wise.
80's are so wonky on the front axle and suspension. The tcase output is 2* roughly pointed up. The front diff pinion is pointed up roughly 7.5*. 5.5+* of difference in the tcase and pinion (that is stock) should cause problems but it doesn't. This Cruiser the front drive shaft stock was in phase, many other FZJ's we work on it is out of phase including mine. There is roughly 9.5* difference between caster and pinion angle. Meaning if you set the pinion at 0* you have 9.5-10* of caster. If you set it at 2* to match the tcase you have stupid 7+* of caster. You can not get or match the pinion angle on an 80 to the tcase and have the tie rod clear the radius arms, even with aftermarket arms which offer more clearance. I have known all this for some time since I did a cross over steering conversion on my old v8 80 & a c&t or when my buddy did a c&t to only gain 2-3*. It is just wonky how Toyota set it up but it works and it clears and that is all that matters. Like I say we improved upon that a little bit by doing the fab to the front axle/suspension and it is setup for this height sweet.
Cheers
