Class 8 is the same as class 1450 with the exception that class 8 requires full factory frame and 1450 can be back halted. That being said most class 8 trucks are still ifs trucks (beams and a arms). However there are still some solid axle class 8 rigs.
I think your maybe a little further away from being race ready for class 8 then what your thinking. Just off my head I know you would need...
Cage
Linked rear (to be competitive,not necessity)
Harnesses
Helmet
Fresh air pumper
Jack
Fuel cell
All proper lights
Radio communications
GPS
First aide kit and safety equiptment
Race suit
Take out all the glass
Some of that stuff on that list takes either time or money or both.
Risk vs reward
What does racing your current truck reward you with and is it worth it?
Is it worth it to put the time and money into making your current truck be able to race a class 8 race that your going to have to compete against linked and ifs trucks and not be competitive but your in it only for fun of driving your truck.
If that’s your goal I see nothing wrong with that if that’s what you really want to do, but to add to it I would have to say are you also okay with doing all of that work and then rolling the truck in a race and crushing the cab and having to cut that one all off your cage and find a new cab to swap on?
Or
Enjoy your truck for what it is. pick up a cab of another truck and start building a 1450/ class8 specific truck. Knowing that it will be several years before a new build will see dirt or a starting line, but you have a truck to wheel in the mean time during the new build.
P.s. I know you’ve already asked me about lowering your ride height before, but I’ll say it again. You can’t lower your truck without sacrificing up travel. Your diff hitting is your current limiting factor. That needs taken care off before your truck could be lowered... beams would take care of that issue. While you were doing the beam swap it would be a good time to ditch that 4l60 and transfer case combo for a 2wd th400
