I have a 90 isuzu, that i just added a big monster notch. Air bags all the way around. but the only thing that is kinda messing me up is that i am still useing the mono leaf w/ a 2 inch block. my problem is that when the truck is all the way down, it rest on the drive shaft. i think the fix is to get shims to fix the pinion angle. but not sure other then getting a 4 link. which im not wanting right now. any info would be great. thanks.  

if it is a one piece driveshaft. you probebly have to notch the back of your cag where the drive shaft is hitting.  

Yes, you will have to clearance the cab and possibly the gas tank X-mem  

thanks to thoughs who took time and awnsered my question. i may or may not try to cut it. i am doing everything my self and that may be more then i can handle. but thank again.  

It is pretty straight forward. If you decide to try it and have any questions give me a call or email & I can give you some advice.  

well i cut it and now it is no longer hitting. my new problem is that i think my drive shaft may be hitting the inside of the tranny. one thing after a nother. thanks again.  

you mean the slip yoke is bottoming out????  If so you will have to shorten the drive shaft, but if you 4-link it you may not have to do anything.  Some times with a 4-linked truck the axle can be pushed back a little but not enough to make the wheels not centered in the rear wheel well.