No worries on the rating of the rack. I hauled a 230lb couch tied down with 4 ratchet straps up there for 30 miles at 60 or so MPH in 15MPH crosswinds.
The truck would have flipped before the rack gave out.
Yes, it was a bone chilling drive.
Yes, if Aunt Edna dies you'll be able to strap her up there and dump her at Cousin Normy's place.
Ever meet someone that accidentally bought a set of 35s?
They call me Birddog. Master of the Sawzall.
35x12.50x15 BFG A/T on Legos
De-Plastified and Blacked out