Is yours a GenI or GenII? LWB or SWB? You can get some of the info off the tag on the firewall/bulkhead. That will give you the model number and ratio. Count the number of bolts which hold the diff head in and also measure the distance across the the diff head where it bolts into the housing and let me know. Will see what I can find out.

'94 LWB 2800, 91 SWB glass-top 2500, 92 SWB soft-top 2500

(You can NEVER have too many Mitsi's!!)