Re: axle replacement issue

By big truck, do you mean a large business, or just one that deals with medium/heavy duty commercial rigs and trailers? Seems odd this would be a problem for them.

Are you filing an insurance claim, is that why it has to be an exact replacement?

Otherwise it's just a matter of ordering the proper diameter and width and either drop or straight, with or without brakes and hubs matching your wheels (probably with?)

More than likely it's a Dexter axle?