This has been discussed countless times but all links users have posted are now defunct. Can someone post a link of the rubber dust boots that work? I have the Pro Pack III with WE130 if that matters. Thanks.
As airscapes says, you can order the boots from Ed K. He has them if you are ordering something else he offers.
Or, you can search Amazon.com for RC Axle Dust Boots. (RC = radio controlled cars). If you are a Prime member, as many of us are, Amazon may be a good way to go.