Got under the 70 today to check all the fluid levels. I cleaned off the back of the T case to look for a tag or model #. The back of the case has the Dana inside a diamond, so I know its a Dana. The only #s I can find are C-18-36. The t case has a removable pan on the bottom, does that narrow the choices down? The removable pan is long and kinda thin. I think the tranny is a Saginaw, cause of the 7 bolts holding the side cover on. Any help would be appreciated.