I've been able to cross quite a few things off my to-do list this summer. Next up is shock replacement ... but I took a front shock and a rear shock into a well known national store that sells Rancho suspension parts, and the salesman and I had a hard time finding a match. The shock mounts on the front of my FJ (1978) are about 16" apart; the rears are about 21" apart. Can someone take some measurements and let me know if those numbers are the stock length? Thank you.