Safe amount to move front axle forward?

[K85 Octane]

I'm running zero rates up front with the axle moved 1.5" with standard crossover. I'm looking to lose the block and move the axle up with some new springs. Just curious what would be the max, without changing anything else. The truck is mostly a play toy, but I enjoy running the freeways TO the playground.

Thanks

 

[Deuling]

It will prolly point the pinion down, so watch for that in your decision of how much.

 

[ChrisPerry]

mine's been moved 4" forward with some ORD custom springs and a B52 kit. Works great when my tierod isn't bent. I have an ORD crossover steering setup and their engine crossmember and have no clearance issues. Castor and pinion angles are great.

 

[Hogback Fabrication]

1.5" is about as far as we like to go, the further forward we offset the center pin the shorter the front half of the spring gets. If you want more than that, I would look into moving the spring hangers.