Have a 94 with 3.55 sterling 10.25 rear end, looking at a lsd out of a 2003 f250. Seller confirmed its a 35 spline. All my research says it should fit as Ford used the 10.25 and 10.50 from the 80s all the way up till now. Since mines a 94 it has the larger yoke and pinion and longer spline length. Am I correct in assuming this lsd should fit in my 94? It's a factory unit. I've read all the stories about factory units but I'm not hardcore wheeling with this rig, just want better traction on ice, snow and occasional offroad and would love to have to not get out and put her in 4x4 every time I turn around somewhere with a slight ditch.