Question for Wagon and Delivery owners

[steve fritz]

I am in the process of building the front end of my 55 wagon project. Working on installing the front sway bar. The wagons and sedan delivery models had a larger diameter sway bar than the passenger cars. The problem is with the rubber insulator that goes over the sway bar where it attaches to the frame on each side up front. So the rubber insulater kits that Carpenter and Macs and Concours sell has the smaller diameter rubber hole to fit the smaller diameter pass cars sway bar.
So where can one buy the larger hole diameter wagon style rubber insulators? OR , could the smaller rubber ones for the pass cars be honed out some to fit onto the larger diameter sway bar for the wagons/sedan delivery?? The overall size of the rubber insulator itself is the same size , and both models use the same mounting bracket that mounts to the frame. The only difference is the diameter of that hole where the sway bar goes through.
Wagon/sedan delivery owners will know what I am asking here.....any solutions????
Thanks for replies.
Steve