I just installed some 63" Chevy springs w/dual shackles in the back of my 85 4runner. The ride and additional flex is great, but I have one issue that needs to be addressed. Even though the new front hangers were installed 11" forward of stock (eye to eye), my rear axle was moved back about 2". I think it's pretty cool and don't mind a couple inches of extra wheelbase, but I'm seeing 1" of exposed splines at the rear driveshaft. I'm not sure how much travel the rear driveline has, but I know it's not much.

I can go about fixing this two ways,

1. I could redrill the perches on the axle to move it forward. This is the cheapest way, but I have to run 2" blocks to level the truck. Running the blocks off-center on the axle perches seems a little sketchy to me.

2. I can have my driveshaft lengthened. This would let me keep my extra 2" of wheelbase, but I don't know how much it will cost. I don't know how to take proper measurements to insure I get the right length either.

I'm going to call the few driveline shops in my area to get quotes, but I want feedback on both solutions from this board before I do anything. Thanks.