we can probably steal 1/2" of that 3/4".....then raise the motor/trans/ect another 1"max....which would give you a total of 1.5"ground and put the driveline 1" higher
i actually measured 7/8in-15/16in. 3/4 is alot for clearence. the tubing on the front of the rack sits under the crossmember. that will play a factor too.