I found this forum while google searching tube bumpers.
I have a 1973 Chevy K10 that I purchased about 4 months ago. I have since installed new locking hubs and a new battery. It's been a great truck so far and I love it. I also used to have a 1977 K5 Blazer so not my first time to the rodeo lol. Glad to have found this site. I'd post pics but I guess i need 5 posts first. Keep on trucking.