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Old 10-14-2019, 09:32 AM   #103
MDPotter
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Join Date: Aug 2018
Location: Western Colorado
Posts: 1,165
Re: 1968 GMC - Ol' Blue

The biggest achievement of the weekend was the exhaust. I bought a 2.5" builders kit from Summit (natural finish) and used less than half of it. The Summit tubing was thicker than the Speed Engineering downpipes actually. It's a pretty simple routing - a 135 degree bend off the downpipe and then a straight run through the crossmember and into the black widow Venom 250 mufflers. The hangers I bought were intended for a system with more overhead clearance, but I installed them in a cantilever fashion. I left one half of the v-band clamp on the exits of the mufflers so I can finish up the tailpipes once the bed is on.

I used stainless wire on my mig welder with the same Argon/CO2 gas I've been using on mild steel and the welds came out fine. Maybe a little more spatter than with the correct gas, but just fine for exhaust on a driver. I had some silver engine paint leftover so I sprayed the welds for good measure. Also welded in an extra O2 bung for potential future wideband tuning.

My missing wheel cylinder link is supposed to show up today so I can finish up my rear drum rebuild and put the rear end back together tomorrow night. I'm on schedule to set the cab, doors, fenders, and grille this weekend!

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1964 Chevy C10 - Gen IV 5.3 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=768632
1968 GMC C15 - Gen III 6.0 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=772047
1969 Chevy C10 - Restoration http://67-72chevytrucks.com/vboard/s...d.php?t=809184
1978 Chevy Scottsdale K20
1993 Chevy C1500 - 5.3/T56 swapped
2008 Silverado Duramax
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