i have a 94 s10 blazer vin W and the 700R4 trannsmision i did notice that on dirt both my tries will spin with power or (pill out) and i was pritty sure i didnt have the locking rear end i belive the code for the locking rear differential is G20 is this right? i have looked on the sticker in the clove box for the code and could not find it if i took off my rear diff. cap what would i look for to find out ?
thanks for any help

 

Take all your RPO codes and put them in to this RPO decoder. This should work for your truck. I know on mny 98 I have the limited slip differential (positraction) and my RPO code is G80, of course I have the 460LE transmission, which I dont think matters on the differential.