1971 K10 Stepside - Getting a Roller Roadworthy

[57taskforce]

Nice find! For what it’s worth my K20 has a 5” lift with 4:11’s, 35’s, with a 465 and it runs 65 mph at around 2500. With the assumed numerically lower half ton gears you’ll be even better than that. The shift spacing/RPM drops can kinda suck on the 465 with bigger tires, but with that L31 you should have the torque to do what’s needed. That looks like an excellent start to me. Get rid of the cobbled together crap on the hangers and you’ll be in business. Make sure and check around the steering box for cracks in the frame and also the front crossmember and engine cross member for loose rivets or bolts. The 4x4 trucks are pretty notorious for this. I’d add an ORD steering box brace that ties that area of the frame to the front crossmember, which triangulates the whole area. If the frame is cracked, several places sell the plates to fix it. The swb K10 and blazers have thinner/weaker frames than the lwb K trucks do so they do have the potential to crack more than the lwb K’s. Both my swb K10 and my K20 had cracks in the frame around the steering box.