Wolfsburg Steering Wheel

I recently purchased an excellent Wolfsburg steering wheel at a very reasonable price off fleebay, it’s the wheel only so no boss or horn press.

question is, will an after market boss kit fit, or will only the original Wolfsburg one do, my cab is an 89 clipper, I think this has the larger spline of the 2 types fitted.

I don’t mind holding out for an original if that’s all I can use, obviously if anyone has a boss or horn push let me know.

Thanks in advance guys, you never let me down..