Thread: Looking for Trans Rebuild Info

I thought it was mid 01 and up that had the hardened shaft stock

This is DAVE lol this two people thing gets cOnfuZInG!!!

I have rebuilt numorous 02 trans's and none of them had the hardened shafts. I even had an 04 Comp G trans that I believe may have been a GM test trans and all of the parts were cast in 02 and it even had the old non hardened shaft. Most of of the 03 and all 04+ that I have seen have the hardened shaft. Scotty the new ones from GM through the parts counter or out of a late trans have the discolored/ heat treated splines so if yours are shiny fresh machined looking then they are not heat treated. There was a lot of that stuff floating around a while back as it was old stock. One of my suppliers buys a lot of stuff in bulk that is OE trans company old stock and overflow and they were selling the old shafts brand new for around $20 but whats the point unless you plan to treat it on your own, its gonna fail too down the road. As far as heat treating I dont know where to point you. We have places in town that specialize in heat treating metals but I have never used them so dont know what the cost would be, but you should justify that before spending the money on it and maybe just go the route of a new treated one.