CK5
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'89 R3500 Crew Cab 2wd to 4wd conversion & beyond

Started out with 2wd TBI350 with SM465 to current 4wd with 454, 700r4, NP241
Where the arrows are drawn, the metal tabs are actually tearing.

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I'm wondering if this is a bad part of something going on with the truck.
 
That's what she said :ignore:

High Angle is a good company...had them do some drive shafts for us before.
I'm super happy about how he set up the axle half with the flange and the slip at the bottom. I thought that made more sense than the factory setup with the slip yoke at the top. I wasn't sure if that was how he'd do it. I just told him to make it as thick wall as he felt was reasonable.
 
Mechanically the truck is back together. Installed the rear drive shaft Saturday.

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I had to grind out quite a bit more of the original carrier bearing crossmember. You can also see I'm installing a drive line brake. According to the shipping label on the box, I've had that brake sitting around for 5 years. Figured now was a good time to try and set it up. I'm excited at the prospect of having a parking brake again.

Spent quite a bit of my time yesterday patching the hole I had to cut in the floor to clear the rotor. Unfortunately the only sheet steel I had available was 20ga, factory is 16ga. On top of that we only have .035 wire set up for our welder. So it was tricky getting it all welded.

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Next step was making a new carrier bearing crossmember. I lucked out and had 2 holes already in the frame that were just about perfect location; just drilled them out for 1/2" bolts. The trick was the frame angles up where the carrier bearing needed to be. Turned out to be 12˚ angle. I used a 3" channel for the main support and a piece of 3" angle to correct for the 12˚ angle.

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My first thought was to bolt all the way through both the angle and the channel but then I realized that would put the bolt head and nut on different angles. So I had to cut out an opening in the channel so that in essence the carrier bearing bolts to just the piece of 3" angle.

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In the end the carrier bearing is about 14" further back. The intermediate shaft if set at 0˚ and the axle section ended up at about 14˚. That a degree or 2 more than I was shooting for. It's close and if it seems to be a problem a 2˚ shim isn't hard to do.

Before shot of the rear shaft clearance:
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And after:
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I like the after much better.
 
Played around in Photoshop to get a better idea of the change. Obviously the angle of the 2 photos isn't perfectly matched, but I think it gives a pretty good idea.

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An overlay of the 2 photos as closely aligned as I can get them.

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Makes me happier that all the work will be worth it.
 
I had to roll the pinion up when I went to 2 piece. That raised the pinion another 1" on mine
 
I forgot to measure the angle again before bolting the ujoint in but I'm pretty sure it was 11° or 12° at the pinion because I was going to need 8° or 10° to get the correct angle before deciding to do the CV.

If I choose the low number of 11° with axle twist it will be 12° to 13° under power and the shaft is at 14°. So it's pretty dang close.
 
Looks great Scott. Hell of alot better than it was. I know I've beat on my HAD's pretty good and they've held up well.
 
Looks great Scott. Hell of alot better than it was. I know I've beat on my HAD's pretty good and they've held up well.
Thanks!

I been meaning to tell you Nate and I used that channel on the walkie when we ran Spring Creek and got to listen to a couple dudes conversating.
 
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