CK5
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77 C20 hauler to crawler

are you building up pressure in your tank? I had some issues with mine until I was vented properly.

Can't help you on the 203 problem, I don't know much about those other than the sound of one failing :D
 
Problem #1. Pretty sure I found a bad fitting on the tank. Dropped the tank (spilled some gas) looked things over, (spilled more gas) and I’m thinking I’m just going to get the OEM style sender and be done with this. The tank is full and with the skid/cradle it weighs a ton, but if I keep going the way I am I’ll have it empty and the garage burnt down in no time. I say that jokingly but at one point I was actually a little nervous. Probably going to pump it into the wife’s truck or my 91 for safety reasons. Lol
@skunked can you get me the part number for the sender/pump if you have it handy?
Problem #2. After talking to @Bent77 and checking a couple things I started with the detent spring. I added a spacer and stretched the spring which helped, but it could still be better. I’m also worried about losing the spacer in the case. Lol idk if it can sneak out from under the spring but there’s not much that holds it in place. So my plan is to go through my assortment of leftover springs from back in the day when I got suckered into installing a couple shift kits and see if I have something that will work.
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Don’t know the P/N off hand but make sure you get the sending unit that matches the size of tour tank.
 
Knocked out the first 100 miles! I’d love to say they went smooth but I can’t even make up a story like that....
So I mentioned my two issues and as of now I think I have them under control. Actually a little afraid to say that out loud but oh well. The big issue I was having was with the fuel system. I was getting pretty irritated and then it clicked. My pump was obnoxiously loud so I moved it to the front of my fuel tank and as low as possible but it didn’t fix it. Then I got a sender from a saddle tank which worked perfect with my tank due to me having to flatten the top of the 31 gallon tank for clearance issues that I overlooked during the build. Still didn’t fix it. I tried everything I could think of in the fitech settings, emailed fitech (which I now regret other than having something to add to their troubleshooting), and I even almost died once because the truck died in a busy intersection! I cussed fitech many times and cussed myself for getting an external pump, but now I have the problem solved. So what was wrong??? Well, you see.... :whistle:
fitech says you can run any fuel pump off the orange wire as long as it doesn’t draw more than 15 amps. The fitech framerail pump does not draw more than 15 amps, but when your post filter is plugged it sure does, which causes cavitation, surging, loss of power, stalling in intersections, anger, high blood pressure, ED, insomnia, flying cats, angry neighbors, poor attitude, and the list goes on and on and on.
And the moral of the story is, don’t be an idiot. Unless you are building your rig in a hospital you’re gona get crap in the tank. If you have a small post filter it’s going to plug up quick.
Here’s how I fixed it. After I cleaned the filter element once, I took it for a drive and it ran GREAT! I put about 5 miles on it with a big smile on my face, but by the time I got back to the house I could tell it was plugged again. Bummer.... I remembered that I had a high pressure 10 micron filter in my toolbox from my crawler build so out with the tiny filter and in with the biggie boy! So far so good! I even picked up a spare that I’ll throw in after I run a couple tanks of fuel through it.
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And the issue with the range box is almost ok. I need to do what @Bent77 did to his, but it’s working for now. I did get it to pop out of high once, but after that I couldn’t make it happen again? :dunno:
So here are problems number three and four.
3. Noisy 205.
Problem solved. On my list of things to do it says.... and I quote.... “top off 205”. I only had one quart of oil in it. Not cool. I don’t think I hurt it too bad, but I feel like an idiot. Filled it up and by golly it quieted right down! Imagine that?!?!? :doah: Everything appears to work right, and I drained the quart out to check for metal, but it was good so I’m gona keep running it till something develops!
4. Rear output yoke is junk. The tabs on the outside of the caps that hold the ujoint aren’t doing a very good job so I’m getting some nasty vibration. I’ll see if I can tap them back in place temporarily while I wait for a new one to show up. Or I could take the brand new one off the front output and use the old one on the front. Naaaaaa. Hammer sounds better. The good news is my driveshaft doesn’t vibrate until the caps slide out a little.
Other than that, I really can’t complain! I had the truck up to 70mph and it drives nice. Rutted roads throw it around, but I am blaming these stupid round iroks and obviously the 56” springs. A good set of 40s and 52s will be great! My steering box still leaks but I expected that after I rebuilt it. It needs to become a core that someone else can deal with. I have two more 2wd boxes that I can swap in if it gets too bad.
I have a lot more that I want to do but it’s going to have to wait a little while. My son graduates next month and I really need to bust his truck out. I’ll start a build thread tomorrow when we drag one of the three trucks in to begin the process of making one. Lol
 
Dang that sounds like an interesting 100 miles!! But awesome it got some time on the road!! Heck ya!!
Yes! It feels good! Thinking about driving it to work tomorrow, but I’m a little unsure? Maybe Tuesday? I have a few things I want to check out first but I don’t have time to mess with it today.
 
Been putting some highway miles on this thing back and forth to work, and tonight I had to stop and cycle the suspension and take some pics while I was at it. I’m happy... Really happy. I didn’t expect it to work as well as it did! As for the highway miles, it is doing ok, but there are some issues I need to take care of. The 203 gearbox is still popping out of gear, but it also sounds like I have a bearing that isn’t long for the world, so I’ll tear it down and see what I find when I get a chance. Been busy with the other truck build and work has been crazy. Had to juggle my schedule around because of graduation, and the kids made it to state soccer which just happened to fall on my workdays. But anyway...... Enjoy.

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You know, I didn't realize until I seen those pics that I have NO idea what you did for springs and such lol. I have some reading to do.
 
You know, I didn't realize until I seen those pics that I have NO idea what you did for springs and such lol. I have some reading to do.
56” in the front and rear. The fronts are suburban packs with 2 or 3 springs removed from the bottom, and the rear are 8” superlift springs with everything but the main leaf and the next leaf removed, and then I added some leafs out of a 56” pack to make my own soopa custom hybrid leaf packs. Lol I thought it was going to be a disaster but it rides nice and actually hauls a load pretty decent. I hauled my plasma table with it which was around 960lbs. Didn’t squat too bad at all.
 
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