anyone know how to get slight camber in the rear on a 1988 pickup, and what are good ways to camber the front
These trucks are all live solid rear axles. Unlike FWD cars, the rear axles contain the drive axles and so they have to be as close as possible to perfectly straight (no camber). The 4X4 boys spend a lot of time and money trussing the axles to keep them straight. The only way to get rear camber is to swap in an IRS from a car that has it (Supra, Corvette, Jaguar, etc.) Front camber is easier: just get an alignment and tell the shop you want x degrees of camber. But they won't warranty the work. You can do it yourself if you're adventurous by installing the appropriate shims in the right places...
A guy on another forum I'm on tweaked the housing on his old ae86 autocross car to have 1.5* camber per side. Said it was hell on tires but it handled excellent.
That would be interesting to see. That would mean there has to be enough slack between the axle and the differential for the axle to be misaligned by 1.5*. I suppose there could be enough manufacturing tolerance to allow that much misalignment but I wouldn't...
Nascar runs splines cut in a diamond shape to allow for camber and toe so the cars handle well at high speed.
Huh! Never knew that. But then NASCAR builders do some weird things. Do they have custom made housings with the axle tubes pointing up a or 2 degrees? I really lost all interest in NASCAR when FWD car nameplates (Camry, really?) started showing up with RWD, V8 drivetrains.
Everything about nascar rigs is custom so yes. I stopped watching nascar when they stopped being actual cars and went to a template body.