Re: 68 Dart GT convertible
[Re: burdar]
#2514252
06/28/18 12:19 AM
06/28/18 12:19 AM
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Joined: Oct 2006
Posts: 7,386 Iowa
burdar
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Owen's Dad
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Owen's Dad
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Iowa
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Re: 68 Dart GT convertible
[Re: burdar]
#2514263
06/28/18 12:56 AM
06/28/18 12:56 AM
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Joined: Oct 2006
Posts: 7,386 Iowa
burdar
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Owen's Dad
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Owen's Dad
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Iowa
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I rebuilt the steering column with the intent of swapping from power steering to manual steering. After the column was done, I changed my mind and decided to keep the power steering. I pulled out the column shaft and swapped in the original lower shaft. I wanted to hold the two pieces together tightly but still allow movement in an accident. This is what I came up with... The upper shaft just has indentations where hot plastic was injected into the assembly to hold it together. After marking the correct location, I drilled all the way through the upper shaft with an 1/8" bit. My father-in-law had some scrap lexan lying around that he thought would work as a "pin" to hold the two halves together. He turned a couple scraps into "pins" and I pounded them through the assembly. We heated the head of a nail with a torch and used that to melt the ends to lock them in place. Finally, I drilled through the center of the pins with a 1/16" bit. The shaft is held tight but it should easily collapse in an accident. Last fall I shipped the steering box to Firm Feel. They did a stage 3 rebuild on it. I was able to get it painted and installed on the K right before it got cold. A couple weeks ago I got this next piece done. I'm going to use a reproduction Tuff wheel on this car. I bought an adapter at the Mopar Nats last year. The problem is that the 68 column was never designed for the adapter. The 68 column is smaller in diameter then the 70 column that the adapter was designed for. The upper column rubs on the inside of the adapter. I had to sand the adapter to clear the column. That wasn't a big deal. The issue is that the adapter really looks like crap on the smaller column. Here is what the adapter looks like on a 68 column. UGLY!!!! I was looking at a Dart under a tent in the swap meet at the Nats last year and noticed it also used the factory tuff wheel adapter. That car had an aluminum trim ring on the bottom of the adapter to help transition the two pieces. It really looked good. The owner said he bought the car with that trim piece already installed so he didn't know who made it. I took a couple pictures of it and made my own. I started with a 5x5 piece of 1/2" aluminum. After cutting out the center hole on my father-in-laws mill, we mounted it to his lathe and turned the outside to the correct diameter. Then we readjusted the lathe and machined an angle into the piece. Here is the trim ring test fit onto the wheel adapter. I still needed to do some hand sanding on the trim ring when I took this picture but this is basically what it looks like installed. I really like it. It makes the adapter look like it was made for the earlier columns.
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Re: 68 Dart GT convertible
[Re: burdar]
#2937613
06/28/21 10:59 AM
06/28/21 10:59 AM
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Joined: Oct 2006
Posts: 7,386 Iowa
burdar
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Owen's Dad
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Owen's Dad
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Iowa
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Re: 68 Dart GT convertible
[Re: burdar]
#2938300
06/30/21 10:10 AM
06/30/21 10:10 AM
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Joined: Oct 2006
Posts: 7,386 Iowa
burdar
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Owen's Dad
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Owen's Dad
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Iowa
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Re: 68 Dart GT convertible
[Re: DynoDave]
#2949690
08/02/21 12:23 PM
08/02/21 12:23 PM
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Joined: Oct 2006
Posts: 7,386 Iowa
burdar
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Owen's Dad
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Owen's Dad
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I've been putting off working on the convertible top mechanism because it was intimidating. Finally got to the point where I needed to work on it so... I started out by taking a lot of pictures and measurements. There are two main adjustment links at the back that have a lot of adjustability. Before taking the bolts loose, I staked both sides of the links so I could line up the marks during assembly. With all the measurements and pictures taken I took the mechanism to the back yard and power washed it. Here are all the pieces of the top mechanism laid out after disassembly. I started with the bows since those looked simple. The tack strip material on the sides were in decent shape but there were signs of rust underneith them so they had to be removed. The factory installed the tack strips into bare metal bows...then they were painted. The tack strip material in the rear bow was in bad shape so that was removed as well. I'll talk to a convertible top installer and see what they recommend before I reinstall any new tack strip material. Original paint underneath a side bracket. SEM Trim Black looks like a perfect match to me. After the three bows were sanded down and painted, I turned my attention to the front header. It looked like it was in really good shape with no sections rusted through. After taking out the old latches though, a bunch of scaly rusty crap came out of the hollow inner cavity. I bought a cheap endoscope for my cell phone so I could see deeper inside to assess the rust. It looked pretty nasty. I found a good deal on EvapoRust at Walmart.com believe it or not. A 3.5 gallon bucket was only like $46. I bought three. Then I picked up some scrap 2x4 / 2x6 and OSB from work and built two boxes. One to soak the header and one to soak the side mechanisms. I lined the long box with plastic and soaked the header in the EvapoRust for close to 24 hours...checking it and hosing it out periodically. The results were impressive. before after After the EvapoRust bath I sprayed the inside with Ospho(actually Concrete and Metal Prep which is the same thing) which turned the remaining rust in the tight seams black. Then I masked off the latch openings and poured black paint into the cavity. I poured a lot in and made sure I got everything inside coated. Then let the excess run out the other end.
Last edited by burdar; 08/02/21 12:28 PM.
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Re: 68 Dart GT convertible
[Re: burdar]
#2949694
08/02/21 12:28 PM
08/02/21 12:28 PM
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Joined: Oct 2006
Posts: 7,386 Iowa
burdar
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Owen's Dad
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Owen's Dad
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Iowa
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Re: 68 Dart GT convertible
[Re: burdar]
#2957320
08/25/21 02:30 PM
08/25/21 02:30 PM
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Joined: Oct 2006
Posts: 7,386 Iowa
burdar
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Owen's Dad
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Owen's Dad
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Iowa
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Re: 68 Dart GT convertible
[Re: burdar]
#2962325
09/08/21 07:59 PM
09/08/21 07:59 PM
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Joined: Oct 2006
Posts: 7,386 Iowa
burdar
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Owen's Dad
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Owen's Dad
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Re: 68 Dart GT convertible
[Re: burdar]
#2986035
11/17/21 10:18 AM
11/17/21 10:18 AM
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Joined: Oct 2006
Posts: 7,386 Iowa
burdar
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Owen's Dad
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Owen's Dad
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Iowa
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Re: 68 Dart GT convertible
[Re: burdar]
#2986039
11/17/21 10:29 AM
11/17/21 10:29 AM
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Joined: Oct 2006
Posts: 7,386 Iowa
burdar
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Owen's Dad
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Owen's Dad
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Iowa
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Re: 68 Dart GT convertible
[Re: burdar]
#2988040
11/22/21 08:58 PM
11/22/21 08:58 PM
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Joined: Oct 2006
Posts: 7,386 Iowa
burdar
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Owen's Dad
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Owen's Dad
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Posts: 7,386
Iowa
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