Assuming a 22" free height coil giving a 3" lift, these would be perfect with a 12" stroke and a small (1") bump stop in rear. Am I right??? My numbers may be off but I'm thinking this an awesome set-up! (Please correct me if I'm wrong!)
We run a 30mm [1 1/4"] rear bump spacer, 12" stroke front and rear with the 24" front [made to trim to suit diesel of petrol, no winch and bar, winch and bar etc] and a 22" rear coil free height, with 12" stoke shock.
Thats our slinky long travel kit, with sway bar spacers and brackets, brake lines, caster correction, we have been doing since 2005 as a bolt in arrangement.
To go longer, you have to move up the front mounts, and cut holes in the floor in the rear, or go bigger bump spacers.
Thats the aim on the next one, to move the top mounts up, and bring the rears through the floor under the drawer set platform, to run 14s at std height, and go bigger tyres for the lift.
40s would be like a 4" lift with standard tyres.
I will need some new cutting wheels for the grinder, tips for the plasma cutter, and some panel mig wire.