by watlingboy » Thu Feb 26, 2015 10:46 am
I think that's going to be a hard part to find but you need to put the same front casting on as came off. The back bonnets are not interchangeable between a fixed horn casting and a removable horn casting. The part of the back bonnet that fits into the top casting has a part number of R15 on a fixed horn Rol-A-Top and a removable horn has a part number of R83. The removable horn Birds are much more common than the fixed horn ones. Hopefully someone has what you need,
Watlingboy