I had a Dana 60 in the rear of my early bronco before going with a full width D70. My front D44 was 60-62 inches wide with the Chevy 8 lug spindles out. I matched the rear by picking up a Dana 60 from an old Ford van at Pick NPull 1/2 price day. I pulled out the long side shaft and replaced it...
Actually the Dana 300 was in an 87 YJ with TBI350/T18/D300 and locked 1 tons. Tires were only 38.5 SXs. My Dana 300 was from a 1980 ScoutII very rare box that broke. It has the same pattern as the Jeep D20 box. I now have a Dana 20 box with 32 spline output D18 lower gears. Everything around it...
My D300 with Teralow 4:1 and AA 32 spline output sucked. It blew up on the first time out. I dont know if it was just my setup or what but it seems a tooth broke off the rear low gear wedged between the gears and forced my rear output to split the case in half. I now have a broken D300, broken...