BUILD THREAD 86 GP 2+2~Blown 6.0

8

81cutlass

Royal Smart Person
Feb 16, 2009
1,777
113
Western MN
Side 2 done.
 

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Texas82GP

Texas82GP

Comic Book Super Hero
Supporting Member
Apr 3, 2015
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Spring, Texas
Streetbu

Streetbu

Royal Smart Person
Supporting Member
May 22, 2011
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113
Central NY
I'm assuming you're going to preheat the center section before you weld it?
 
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8

81cutlass

Royal Smart Person
Feb 16, 2009
1,777
113
Western MN
Tubes are welded to the housing. Little progress every night!

I was lazy and watched the new avengers movie last night AND the last episode of game of thrones tonight (gasp I am loosing productivity!)

Asked my engineering/welding buddy with 10 years of experience in aerospace TIG and sub arc mig welding for trailers how you should weld cast iron to mild steel. He said keep the cast under 300F, dont preheat, work around to not warp anything. Nickel copper arc rods are ideal but I wanted mig so Stainless wire was a good second. Thats what I did. Preheat would be good if I welded it in a rotating table if you wanted to do it in one shot for more production environment and cool slowly in a sand put but I didnt want to deal with that.

Looks good so far.

Lt. Diff, you ain't got no legs!
1556769565276.png


Look at them boogers!!!
1556769579076.png
 
Texas82GP

Texas82GP

Comic Book Super Hero
Supporting Member
Apr 3, 2015
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Spring, Texas
Looks pretty good to me! Definitely better than I could do.
 
8

81cutlass

Royal Smart Person
Feb 16, 2009
1,777
113
Western MN
Been dealing with wagon issues but I did jig the axle up in the mean time. I also finally hunted down argon so I can get to welding next week! Just need to turn some bushing holders for the plate, weld the plate, buy a posi and should be in business!
1559924016115.png

1559924026080.png
 
8

81cutlass

Royal Smart Person
Feb 16, 2009
1,777
113
Western MN
Well I turned my bushing supports for the UCA mounts and welded those in yesterday. I also pressed bearings in the posi diff I bought and swapped the ring gear over. Pulled the pinion out of this rear and found I got the wrong seal so I ordered a different one. Bearings looked good though so they are going right back in. Also bought a 1350 factory forged input yoke out of a hummer h2 for $60 off ebay.

I have spherical UCA bushings on order and new wheel studs for the moser 30 spline axles I have.

Hopefully get the diff assembled tonight and in paint later this week?

I want adjustable spring pockets so I can dial in ride height so I have some parts hunting to do today. I'll see how this works :)

117529

117530
 
MC96

MC96

Master Mechanic
Dec 7, 2015
368
63
8

81cutlass

Royal Smart Person
Feb 16, 2009
1,777
113
Western MN
Yeah I almost bought those afco spacers but decided against them since a) the G body spring has a 2.5" pigtail and b) (the real reason) there isn't a good way to adjust them up and down since there is no wrench slots like a coilover or a normal hex.

I saw a G body guy with a quick 9" that had those spring adjusters in it and it was real nice for towing trailers and drag week stuff.

I have a design sketched in my brain using some 1" threaded rod and some nuts/washers that should work as good as those afco ones but allow stock style springs and a normal wrench to adjust height. I just gotta find some giant washers!!
 
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