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**JJorgensen52** · 05-04-2013, 01:04 AM

Had today off so I made some great progress today:

Uprights are completely repaired and I've extended both sides so they're now 110" in length to match the original flatbed. I tapered the tubing from 4" tall down to 2" tall behind the pivot point, in order to be able to maintain approximately a 55 degree max mechanical dump angle without cutting off the rear of the truck's frame.

You may note I have not yet added the reinforcement plates to my extensions - I ran out of flat stock so I'm going to finish that off in the AM

Got the ol' John Deere involved to lift the flatbed off - this assembly is extremely rigid by itself, I was quite surprised!

Truck chassis with just the wooden carry blocks and brackets remaining - those come off tomorrow for subframe fit-up. Turns out the wood spacer blocks have some dry rot at the bottoms near the frame, so I will be using them as a template to cut new ones from PT lumber.

05-04-2013, 01:04 AM	#17
JJorgensen52 Simple? What's simple? Join Date: Apr 2007 Location: Southeast CT Posts: 1,472	Re: '72 C3500 GMC flatbed project Had today off so I made some great progress today: Uprights are completely repaired and I've extended both sides so they're now 110" in length to match the original flatbed. I tapered the tubing from 4" tall down to 2" tall behind the pivot point, in order to be able to maintain approximately a 55 degree max mechanical dump angle without cutting off the rear of the truck's frame. You may note I have not yet added the reinforcement plates to my extensions - I ran out of flat stock so I'm going to finish that off in the AM Got the ol' John Deere involved to lift the flatbed off - this assembly is extremely rigid by itself, I was quite surprised! Truck chassis with just the wooden carry blocks and brackets remaining - those come off tomorrow for subframe fit-up. Turns out the wood spacer blocks have some dry rot at the bottoms near the frame, so I will be using them as a template to cut new ones from PT lumber. __________________ CURRENT '50 GMC 100 shortbed Gen IV 4.8 LS - 4L65E (Secret truck, Shhh!!!) Build '63 Buick Wildcat Coupe 401ci Nailhead (Very much in pieces) Photos '66 Impala SS convertible 327-QJet-glide (4 speed swap one of these days...) Photos '69 CST/10 4x4 SWB Stepper 350 2bbl - NV4500/NP241C (Broken Truck!) '72 Sierra Grande 2WD LWB fleetside 350-TH350 Refresh '99 K2500 Silverado RCLB 5.7 Vortec - NV4500/NP241C (Daily) '99 K2500 Suburban 7.4 Vortec - NV4500/NP246 (still working out the bugs) SOLD '71 Custom/10 2WD LWB fleetside - '72 GMC K/3500 Dually (Sold to redryder)