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  #941  
Old 06-25-2018, 09:14 AM
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Jack 1957 Jack 1957 is offline
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I've been pretty busy around the house but got some time in on the Cadillac here and there. My wheels are due here this week some time so I needed to get my front fenders finished. I'm scratching to gain every fraction of an inch in tire clearance up front. One way to gain another inch per side is to modify the wheel openings. The original design is flush along the outer surface and the sheet metal rolls inward almost a full inch to form a lip facing inward. You can see it in the picture of the left fender below.


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If I cut that lip off and roll the sheet metal outward to form the lip I gain two inches of clearance total. When I cut the old lip off and started to flare the sheet metal outward I could only go about half as far as I wanted to because it was starting to distort the fender so I stopped.I formed a lip from 5/8" round tube and welded it to the opening then smoothed it out with some duraglass. I only did one so far. I didn't want to do them both at the same time in case I didn't like the look. Once I had it done, I decided to keep it so I got it primered up. The only problem is, The flat surface doesn't really fit in with the rest of the rounded body lines. I will probably round off the outer edge of the flare to soften it up a little.


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Last edited by Jack 1957; 06-25-2018 at 09:17 AM.
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  #942  
Old 07-09-2018, 08:33 PM
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Jack 1957 Jack 1957 is offline
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I've been putting it off as long as I could, but it's time. I need to get the CTS firewall swapped into the 49.
I dropped the engine and trans then cut away as much of the front unibody as I could for now. I have a lot of time into finding the best way to do this. I decided that I will take the CTS firewall out along with the trans tunnel. That will ensure that the dash and console will mate up during the transplant surgery.
Next on the list of things to consider was whether to use the CTS floor pans in the 49. I decided not to, the floor and floor braces in the 49 are in good shape and strategically placed to align with the body mounts. I don't want to lose that. Another reason is that the floors on the CTS dip down from the door sill about 2 inches. On the 49 they are straight across and there is only about one inch gap between the frame and floors.
There's a lot more measuring and head scratching to be done before cutting but at least I have a plan now.
The only thing that concerns me is the cabin air filter plenum. It is the composite box that you see in the pictures on the passenger side. I will be keeping most of the original 49 front body mount and there will probably be some tricky work involved in clearing that box. I will probably have to fabricate one out of steel. It's a pretty basic piece, it takes air from the cowl area above and allows any water to run out of an opening in the bottom. The filtered intake air to the cabin is in the middle.
I'll figure it out once I get the dash out. That's next, stay tuned.

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  #943  
Old 07-10-2018, 05:05 AM
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123pugsy 123pugsy is offline
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.....this should be some good stuff.
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  #944  
Old 07-10-2018, 05:29 AM
Gojeep Gojeep is offline
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I spent a lot of time thinking and measuring before I cut my donor floor and firewall out too. Best way is to take your time for sure.
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  #945  
Old 07-11-2018, 08:09 PM
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Jack 1957 Jack 1957 is offline
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Time to gut the CTS. I cut out the windshield in one piece and saved it. Eventually, it will be used to make the rear window for the lift off top. It looks like it has a suitable curve to it.
Next I pulled the seats and console so I would have everything out of the way.
The best and quickest way to pull a dash from a late model vehicle is to take it out the same way it went in; as a fully wired, plumbed and ducted unit. Unplug wiring connectors, remove about a dozen nuts and bolts and it slides out. The downside to doing it this way is that the assembly is pretty heavy. I managed to get it out of the car but needed my neighbor's help to get it up on the stand.
If you're ever working on a late model vehicle and it takes more than a few minutes to remove a part, you're doing something wrong. Where ever possible,
sub assemblies are used and it's usually quicker to remove them the same way. The only unexpected thing I found was that the front harness that goes into the engine bay and all the way to the underhood fuse box did not have a service connector at the firewall or the dash. It is one piece from the front, runs through the firewall, then laces into the various connections on the dash. Usually there would be a connector at the firewall. Anyway, I just pulled the harness through and removed it with the dash.
The whole process of removing the windshield, seats, console and dash took about 4 hours.

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I think I can use most of the insulation and sound deadener from the CTS cabin. That would be a bonus.

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  #946  
Old 07-12-2018, 01:43 PM
dwmh dwmh is offline
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Hell Jack you're not shy of working. I take my hat off to you. Thanks for the posts. Great Job.
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  #947  
Old 07-16-2018, 03:24 PM
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I think I've got what I need. I taped off my cut lines and drilled out some spot welds.

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I don't have the words to describe how much fun this was. 90 degrees and humid are the best I can do. Anyway, it's out. Next I'll remove the 49 floor. That will be much easier. I can take that out in small sections.

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  #948  
Old 07-17-2018, 08:17 PM
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Jack 1957 Jack 1957 is offline
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This is the left lower rail on the CTS. The plate setting to the right of it was sandwiched between the rail and the floor when it was welded together. I can't use the rail to reinforce the floor but I can use the plate. It is C channel shaped with flanges along the sides. I'll weld it back on the floor and it won't hang any lower than the floor since the floor is recessed where the rail was.

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I had to make a temporary fixture on the 49 to mark the height and location at the center of the windshield before I started cutting out the firewall and floor. It can be removed and replaced easily while I'm working on fitting the new firewall. It is just some scrap conduit and a couple other bits.

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Most is out. I'll cut for the tunnel and start fitting up tomorrow.

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  #949  
Old 07-19-2018, 07:28 PM
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Jack 1957 Jack 1957 is offline
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I got the floor opening roughed in. I think I'm going to install the engine and trans before I put the CTS firewall & floor in so I had to remove the temporary bracing I put in and replace them with just one brace going directly across from side to side at the lower corners of the windshield. It will be much easier to get the mounts made and installed working from above. If I put the floor in first, Id have to weld in the mounts from below. It's just a lot easier to get the mounts done before the floor goes in. I had to modify my engine support to use it on the 49. At the ends of the support, there are plates that had rubber pads on them to rest on the upper rails of a late model car. I had to remove the rubber pads and cut some tubing in half lengthwise and tack them to the plates so it would set on the round tubes tying the towers to the firewall. I will use a cherry picker to get the engine in place, then transfer it to the support which is easily adjustable up and down, and can be slid forward or backward along the upper tubes. I can position the engine exactly where I need it and it will stay there until I can get the mounts made and installed.

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  #950  
Old 07-19-2018, 10:07 PM
Jon Thompson Jon Thompson is offline
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Nice job Jack!There is a Roadster that makes my socks roll up and down! JonT
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