The best would be to build it. but check out this link:
https://candospecialties.com/Merchant2/merchant.mvc?Screen=PROD&Store_Code=CSI&Product_Code=8494toyxmem&Category_Code=XM CanDo (Steve Nielsen) sells the ones for the 84-94 toy, but the tranny and frame are almost exactly alike. I know the tranny is the same, so the mount should work. the frame is only a little bit different. Mainly the front suspension (control arms) is what changed. in 84. Worst case scenario you will have to change the length of the crossmember and if you don't know how to weld, it would still cost you less then paying somebody to do it. hope that helps