I replaced my passenger side axle with an A1Cardone new axle. I noticed when putting it in that it was 3/4" - 1" shorter than the GM original. I double checked the part number that was etched into the shaft against the box and Cardone's web site just to be sure it was the correct one due to being shorter. The length seemed to be removed from the middle part of the shaft. It went in fine, but I have a problem now. I have no trouble when going forward, but in reverse, under a load, there is a growl type sound. It will make the sound if I hold the brakes and give it gas while in reverse, backing up hard or backing up going uphill. It almost sounds like the splines of the shaft are not catching and are slipping over themselves. If that were the case though, I would expect it to do it in forward or reverse. There is also some play in the part of the shaft that slides into the transmission. I double checked to make sure it is all the way into the transmission also.
I am going to put the old one back in tomorrow to see what happens, but thought I would check with you guys and see if anybody had and ideas or suggestions on this. Thanks