95 blazer IFS diff. interchange ??

Does anybody know what year front differentials will interchange with my 95 Blazer ? I stuffed 31 in. Yoko M/T's under it and now I want to change my 3.42 gears with 3.75 or 4.10's. I don't enjoy a ring and pinion change and the only aftermarket R&P ratio I can find for the front is 4.10, so I was just going to try and find some used Diffs. The interchange manual says only 94-to 96 or 97. I have heard that 88+ will work if I get a 4x4 posi-lok kit ( the cable activated kit for the front axle) Does anyone know ??