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Dennis_K · 09-24-2018, 12:21 PM

doublechevy,

Have you inspected the other end of the tube? The tube on the left that has the cracks is twisted so the opposite end may have the same damage.

doublechevy · 09-24-2018, 07:57 PM

Checked all other supports could not see any other damage. Will look again though to be sure.

Welder was here today said no problem easy fix.
Will cut off existing damaged support, weld tear, plate damaged area with 1/2 " steel plate then cut the damaged support to maintain existing dimensions weld back to steel plate add gussets for additional strength. should be here to do the work end of this week.

I removed the shock and air bag, broke one of the studs on the air bag will probable have to order new air bag
.
I am also replacing front and rear shocks with Bilsteins .

having a difficult time accessing the right front top shock mount to tighten the shock mounting nut any suggestions 2008 Knight RR8R chassis

doublechevy · 10-04-2018, 08:41 PM

follow up to H frame cracking. After hiring a welder fabricator to repair the damaged H frame It was apparent that the stressing and finally the cracking that I found was going on for a while and developed to the point when I finally discovered it.

The repair was much more work than the fabricator/welder saw when he first looked at it. He had to remove the upper H frame completely, cut out the damaged section. make a patch for the cracked frame work and then weld a reinforcement plate over the patched area

It has now been repaired and reinforced with a gusset made with 1/2" plate steel

Pictures attached

doublechevy · 10-04-2018, 08:44 PM

Pictures

Mit12 · 10-04-2018, 10:47 PM

Quote:

Originally Posted by doublechevy

Pictures

It looks nice, did you do any gussets on the other side?

Timaz · 10-05-2018, 01:27 PM

Looks good. I hope the precautions that Allison has posted on a sticker in your battery compartment about disconnecting all of the electronics before welding?

Dennis_K · 10-05-2018, 03:00 PM

Wow, that damage was not on the H frame but the main frame.

doublechevy · 10-05-2018, 07:53 PM

Did not see the sticker you are referring to. Disconnected all battery cables and shore power as many other posters have suggested. reconnected today everything looks OK. Did not test drive.

That looks like it is the main frame but it is not. The main frame is behind the channel that was repaired.

Waiting for my rear shocks to arrive. Fronts are done. I will then reinstall the wheels and test drive to check the transmission. Also put balance beads in new front tires and the rear duals on the drivers side.

It will be awhile before I can finish Just had Carpal Tunnel surgery on my right hand so a little handicapped right now