my buddy has a 86 F-150 that has a 9" rear, borg warner transfer case and tranny. he's parting out the truck....he said he would sell it to me for 200.00. I'm thinking this is a good price. would the 9" rear and transfer case work in my 90 Bronco? Would I need to change or modify anything? My transfer case goes into 4wd hi, but for the life of me I can't get it over and down into 4wd lo.