if your rear axle is in the middle of it's adjustment range with the 144" track just measure the actual physical length of both tracks (to rule out a wide variation of problems...such as a stretched track or someone mighta sold you a 150" track instead
) and do the same math before drilling and you should be stylin' the approach angle of your suspension will be reduced so you get up on the snow easier.at this point- if you drop the suspension out of the tunnel an "insane" amount it will just get your approach angle back to where ya started (or even worse)... on the other hand if you drop it out a "sane" amount you will gain clearance past the tunnel cooler for a little better clean out (to fully benefit from this you may also have to go to slightly smaller drivers or drop & roll your drive axle "away" from the bulkhead cooler to increase the clearance in the front of the tunnel as well...but that's a whole other ball of wax)
