Hey bud, if you're like me your next step is starting to learn how to edit textures and 3D models so we can properly fix the old front tyres smash through the guards when turning and/or braking. Needs more clearance and just like IRL the guards on the vehicle/s body need to be modded for clearance. Neg camber helps in situations when you are full lock sideways because the inside tyre sits straight up and down, giving a full contact patch with the road surface and providing the most grip. This is great for handling but reduces said clearance, and the problem becomes worse due to all of the g-forces (acting on and) compressing the suspension on the leading areas of the vehicle as you enter the corner (aka weight transfer / physics). On the rear it doesn't matter so much because fuck those tyres and who needs traction. Also, your basic Sprinter (Aus) AE86 (Japan) has a live axle rear end IRL and is non adjustable anyway, set at 0 degrees which is fine.

In GTA V there are no camber adj. settings (Dam you Rstar!) it's just not Gran Turismo although the physics of the game are indeed capable of great things.
There are still two ways I know of to get it to adjust; a recent or fairly new mod which basically hard-codes insane amounts of front and rear camber into a dedicated vehicle model (search RX7) but limitations include being unable to change wheels, probably unable to smash wheels off when hit by another car at speed, unable to change tyres, unrealistic details such as tread marks left on the road: the game lays down full marks despite how much of the tyre/s is actually in contact with road surface, decreased traction and increased tendency to understeer / lock brakes during straight line driving, although to be fair this last point is just the way it is with camber. It's easy to go too far and make said car into a pig to drive.

The other way is what you already know. Lowering a vehicle with increase neg camber, raising it will go the other way to the point of positive camber. Great example of this: Lowriders DLC cars, load one up, Primo2 or whatever, and have a good look. When slammed, look at the car in a full frontal view, then shift across slightly, only just enough to start to make out the wheels inside the tyres, if you can see the dish or the spokes, you have gone too far. Have the camera angle very low, as if you were laying on the ground facing the front of the car, with a light background helps, from there you can see the angle of the camber. Using the hydraulics, lift the car to full raised height, then drop it back on it's guts, and play with this going back and forth, adjusting your viewing angle and bouncing the ride height settings. You will get a good idea of how the camber changes due to games physics trying to emulate IRL changes. It's subtle, going from about 3 - 5 degrees negative to 3 - 5 positive but you can definitely see it happening. You can also get an idea from the outside edges of the front tyres; they will not actually be touching the ground (so log as the wheels are straight, not turned). The more neg camber, the more of an air gap you see between the outsides of the tyres and the road surface.

Centre of gravity is key to handling and gta v has two different settings there to fk with. It's touchy and it's not what you think (front / rear) it effects weight transfer on turns (front setting) weight transfer in straight line (rear setting) and as such has a huge effect on all of your other precious handling settings and can easily fk everything up. It can be set to either a pos or a neg value, and effects whether vehicles behaves with logic (emulates IRL) or without logic (emulates my ex gf : )

COG (centre of gravity) also makes ride height it's little bitch in game, and as such will dictate camber settings. Checkout so called 'wheelie' mods to see how much it can fk up your handling. Or just make your own mod; increase traction, increase torque, shift traction bias to the rear, soften suspension and set bias to mostly front, or alternatively tighten up (comp / rebound) and set bias to mostly rear, then tinker with the COG. Small neg value the front, combine with fairly high pos value the rear (from memory) and when you load vehicle in game it'll be full drag style jacked up at the rear (centre of gravity is high positive) visibly with the ride height and the front will be slammed with heaps of neg camber (neg COG value). Example -1.5 front, (+)3.5 rear would be fkn heaps and probably lock up your front wheels just sitting there with all the weight on the front end, also toppling your max values for ride height min/max upper/lower and possibly crashing in game vehicle. Recommended careful tuning COG without going much past 1.5 in either direction (positive or negative).

Having been there recently I can say that I prefer to try to find a balance of nice low ride height, minimal smashing / rubbing / clipping of front tyres in any/all situations, and a slightly higher rear value COG compared to front, example front -0.5 rear -1.5 (plenty) or pos values: front 0.05 rear 0.075 to maybe as much as 0.15

I'll be releasing vehicle specific handling mods when i'm ready (can't now, waiting on SCV patch to go with latest game updates) and yeh, feel free to check my settings at that time. My interests are; drifting, V8s, muscle cars, torque, good sounds, good handling, ability to light throttle cruise when cruising and smash tyres on demand in any/every gear using 5 speed trans with quick shifts or 4 speed with slower lazy gear change speed settings. Have been working on ZL1, Firebird, Tampa etc. handling and was getting back into sound mods recently, picking up where left off from gta iv modding, then got stuck due to current Rstar auto-updates situation. Hope that helps : ) have fun