I have a early 99 with the old style track bar. The bushings are shot so I grabbed a trackbar and bracket off a later model truck to utilize the larger bolts and more common parts. So now I have to drill out the bracket on the axle. Anybody know what size that should be drilled too and where I can find a bit that large that won't cost me more then the trackbar?

 

Try a machine shop, they most likely have the bit you need and wouldn't charge much to drill it out for you.