I was checking to see the number of splines in my front end today so I could order new hubs. Does the number of splines also determine what fron end I have. There are 19 splines. How can I tell which front end I have? It's an 89 F250.

 

Maybe but I wouldn't go by it.

Easiest way is to look at pics of both axles and see which one you have. Here are a couple pics. Notice how the Dana 50 hub fills out a lot more of the wheel opening than the Dana 44.

 

I am assuming that the Dana 50 is the top pic?????

 

Dana 44 is top pic

Dana 50 is bottom pic

The dials and bolts are the same size in both pics, notice how much larger the chrome surrounding it is in the lower pic

 

I'm betting you have a D44. D50s and 60s have 30 and 35 spline hubs. But the easiest way to check is to look at the pumpkin. There should be a 44 or 50 cast into the back of the housing.

Edit: Just want to clarify that I'm talking about the splines on the axles.

 

I just took a look and I didn't see anything stampen in the pumpkin???I'll look again. Maybe I have to hit things with a wire brush to clean them up enough to see........Thanks

 

They stamped the later ones for sure, but not the earlier ones. I'm not sure when they started doing it. I wouldn't expect to find them on an 89 though - at least in my experience.

 

OK, thanks for the info. Hopefully the hubs I ordered from Warn will fit.

 

The chrome cover on a dana 44 front axle will be roughly 3-3.5" across.
the chrome cover on a dana 50 front axle will be roughly 4-4.5" across. Measure the diameter, it will tell you what you have.
You wont have a dana 60 front axle unless somebody swapped it in at some point, highly unlikely

 

Thanks Blue Rebel. Based on that info I know I have the 44. The hubs I orderd will indeed fit.