Do you have any more specifics on the location of the stamp? My data plate is also illegible and I'm going through a heck of a time trying to register it. Thanks!

The data plate on mine is also worn away, but the tire chart isn't. I'm pretty sure the GVWR on the data plate is 2999. From my 1984 mac 25 trailer: GVWR: 2999 GAWR: Front - 3000 with G78-14 (B) Tires 14x6 Rims, at 32 psi cold GVWR: 3500 GAWR: Front - 3500 with L78-15 (B) Tires 15x6.5 Rims, at 32 ps...