Your axle ratio's don't need to match exactly they just need to be realy close. Any axle can be modified to fit but the easy way if your ok with your ratio but need a locker is to get an extra drop out section and weld the spider gears (lincon locker), it takes about a half hour to swap out a center section so do that as part of your prep before you go wheelin and swap back when you get back, keep the gear oil clean and reuse it. It may sound extreem but you should be able to hang with them next time.

Dennis

95 Sportage, gone but not forgotten.
98 Jeep TJ, 4" Zone springs with RC Long arms, Ford 8.8", 4.56 gears & Detroit locker rear, D30, 4.56 & Detroit Trutrack front.