[quote author=ginericfj80 link=board=2;threadid=6925;start=msg57019#msg57019 date=1067539204]
Christo,
I'm confused or maybe I'm reading your post wrong. Are you saying that an 80 with J springs does not drive well?
[/quote]
Yes, if you measure the caster on a truck with 850J's and no accesories on the front, you will find that it is close to 0 or even negative ( this is even with caster bushings installed). The stock caster is 2-4 degrees.
The steering is extremely light and emergency lane changes are scary. With a ton of weight on the front, J springs might settle down to about 2-2.5" and with caster bushings it will be ok.
[quote author=ginericfj80 link=board=2;threadid=6925;start=msg57019#msg57019 date=1067539204]
Or are you saying that an 80 with J springs and no caster correction does not drive well?
[/quote]
This is even worse. We would never send a truck like this out of the shop. Also, you run the risk of introducing what is called a "death wobble" The steering stats shacking uncontrolably and you can not get it corrected until you stop or slow down.
[quote author=ginericfj80 link=board=2;threadid=6925;start=msg57019#msg57019 date=1067539204]
Or an 80 with J springs and spacers to level it doesn't drive well? Elaborate if you could, I'm interested in your experiences.
[/quote]
You need new control arms, or cut and turn the knuckles, or some other DIY caster correction. With J springs and spacer, even with bushings you will be negative in caster.
It is foolish to think a truck drives ok like that. To compare, get back in a stock truck and see how it feels.
[quote author=ginericfj80 link=board=2;threadid=6925;start=msg57019#msg57019 date=1067539204]
I went J springs all around, really a lightweight 91 with a small tube bumper and sliders, with the caster correction (I realize it doesn't correct quite enough to get back to stock). My Cruiser drives great down the road. I actually prefer it to our 94 which is all stock.
[/quote]
Yes, it might go straight down the road, but does your wife/girlfriend know the dynamics of the lifted truck and would she be able to handle an emergency.