Hey Texmo-I agree w/Zenish, stick to 2" on the front-3" is just too much using springs. Alignment is tough & ball joints are at funny angles causing them to wear faster. Also, they can pop outta place sometimes when jacking up the truck. You coulduse the 63 linkage by buying some tie rod end adapters fom CPP, but I would use the 79 linkage cause I'm poor/cheap, & I know you got a diagram. brian