I have a 94 gmc sierra 4x4 thought it was a Z71 until i looked cose enough to see he took the 4x4 stickers off and put z71 decals on. Anyways my truck has the 10 bolt rear end but i seen a truck to day that was a chevy z71 that looked like it had a bigger rear end in in. so did chevy and gmc put bigger rear ends in the z71's? and my truck didnt come with a steering stabilizer is there any way i can put one on cuz i would like my tires to last. plus im only sixteen so much help would be appreciated  

Most Z71's had 10 bolt in them but a few were made with 14 bolt 9.5 inch semi floater. Not sure what order combo made it happen but there are a few out there with bigger rear axle.  

i have a 94 chevy and when i bought  it has the 14 bolt and heavy duty tow pakage.so i took the vin number and called chevy dealer and they can tell you how the truck was ordered.  

Ok mine just has a 10 bolt in it. and wut transmissions came in this model truck cuz i got and 85 with a 700r4 and the one in my gmc looks like the 700r4 but i know they started puttin in 4l60s and 80s in them.  

93 was first year for 4L60 but a 4L60 is really nothing more than a 700R4 with a electronically controlled valve body  

Thanks. O.K. I got one more question my truck didnt come with a steering stabilizer LMC has a steering stabilizer kit. can i buy that and put it in there