And I decided to ditch some unused pulleys. I deleted my a/c , mechanical fan, and idler pulley. The alternator was also replaced with a 136a unit from a v8 zj. I swapped in YJ bracketry to move the alt away from the bottom and eliminate the above .
It ended up needing a 71.5" belt from advance auto. Part # 715k6.
With the battery At 11.7v the new alt produced 95 amps at idle. Once the optima resurfaced the average was 55a.