How do I measure a metric spline

[omarramo]

Hello,
I am currently adapting a later model Model 1520 4WD front end to a Ford 1500 tractor. I need to connect two different metric splines to drive it. How do I measure and identify these splines in order to design and make a double spline adapter?

Thank you for any help you can provide.

Sincerely,
Mark Salak

 

[wallyd999]

Do you just want to measure it? If so, you measure it the same way as you would a regular spline, which is basically measurement over wires (MOW). You will need metric spline spec to help find which spline you have after measurement.

My questions to you is how are you going to manfacture the coupling? If you take it to a local spline shop they can measure it and make it for you. Plus they can fit the coupling to the new part (if it's not to large). Also they will probaly need to have a metric cutter.

Unless you have the time and resources the spline shop may be your best bet for the entire project.

 

[omarramo]

Thank you Wally for the information.

To answer your questions
1. The new front end has a male metric spline and a drive shaft with two u-joints at each end that connected it to the original tractors rear power source.
2. The tractor it's going on, has a solid larger splined shaft that comes from the back of the tractor.
3. I bought a pillow block that will bolt up under the belly of the tractor and capture the original straight shaft from the back.
4. My thought was that if I determined the spline size on the new front end, I could hopefully "order" a new male premade spline stubshaft online if it was a common size. Because I have to cut the original straight shaft from the back anyway, because it was too long, I was then going to take the "Ordered" piece, turn it down and weld it to the shorted existing rigid shaft.

More to come later.

Thank you for your input so far.

Regards,
omARRAmo