Rock Auto will tell you when items ship out of different warehouses. I forget how far into the process that notice is and I cancel the items that don't ship together. They've been good to me but they aren't stocking vintage stuff much. I haven't used them in the past few weeks but the last order was well worth paying the two shipping charges for a wheel bearing set for an HO72 axle. They beat NAPA by $125 after shipping charge. Same part numbers.

Old Air charged me $20 on a $16 part. Couldn't find it elsewhere.

Jim Carter won't tell you the shipping charge until you see it on the invoice when you get the part. My last order was for $60 and the shipping was $20. I suspect that they are having problems with shippers too.

RGM in the UK makes performance parts for Norton motorcycles and their website says they are having surcharges added by their "couriers" on international orders including to the USA. I got another item from Toronto shipped Canada Post via USPS for a few dollars. Customs declaration said "used parts for antique motorcycle." No duty that I could see.

I suspect Covid has had an impact on shippers. Vendors seem to be OK.

1951 3800 1-ton
"Earning its keep from the get-go"
In the DITY Gallery
1962 261 (w/cam, Fenton headers, 2 carbs, MSD ign.), SM420 & Brown-Lipe 6231A 3spd aux. trans, stock axles & brakes. Owned since 1971.