Yesterday did a 300 mile round trip to pick up our 6.2L Diesel with Th400 for the Viking
My poor C10 did the job without any hassles, but I did notice the +/- 900 pounds perched in the back. It doesn't lean back to bad, but the rear coil springs and dampers are a bit soft, especially going over speed-bumps! I hate speed-bumps... and the Dutch suburbia are littered with these #@$$#%# (rimes with Other Puckers)
But after 2,5 hours, mainly highway and doing 55mph, I got back to our garage and we borrowed a forklift to get it out.