I purchased an ABS plastic (felt lined) firewall pad from Classic Parts and was looking at the logistics of installing it on a running truck. My plan is to remove interfering cables, capillary tubes and wiper hose and slot the top of the pad where the main wiring harness passes thru. My issue appears to be that the ABS panel is too rigid to pass over the steering column.
Has any of my fellow ‘bolters installed one of these pads, and if so, can you offer some advice?
Phil Moderator, The Engine Shop, Interiors and Project Journals
1952 Chevrolet 3100, Three on the Tree, 4:11 torque tube Updated to: ‘59 235 w/hydraulic lifters, 12v w/alternator, HEI, PCV and Power front Disc Brakes Project Journals Stovebolt Gallery Forum
The pad I bought thru Classic Parts, has an ABS plastic face, with some type if fibrous padding. The issue is the plastic does not bend very well and appears that the steering column is in the way. It would be perfect to install before passing anything thru the firewall (including the steering column), as it’s a really nice pad. My initial plan seemed like a solid plan until I found it was too rigid. I’m wondering if I can remove the upper steering column mount where it attaches to the dashboard and slip the pad behind.
I would really appreciate some input from any ‘bolter that has installed one of these pads.
Phil Moderator, The Engine Shop, Interiors and Project Journals
1952 Chevrolet 3100, Three on the Tree, 4:11 torque tube Updated to: ‘59 235 w/hydraulic lifters, 12v w/alternator, HEI, PCV and Power front Disc Brakes Project Journals Stovebolt Gallery Forum
I installed one of those and it was a bit of a bear to get into place. I could not figure out what I was supposed to do with the giant plastic retainer pins. I was definitely not willing to drill holes in the firewall for them to fit through. I used the stock retainer pins, but had trouble with lining up the pad since they needed to go through the middle of the semi-prepunched holes for the giant plastic pins. I suffered through it, but never again. I prefer the soft covers. Wish I had better news for you. Maybe you can sell yours to someone who hasn't read this yet.
Last edited by 52Carl; 06/29/20212:47 AM.
1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission
Geeez, I haven’ t even thought about that part yet! My cover is a bit different as there are slits instead of holes for the stock retaining pins.
Did you install it before you installed your steering column?
Originally Posted by 52Carl
Maybe you can sell yours to someone who hasn't read this yet.
Your funny!
Last edited by Phak1; 06/29/202112:11 PM.
Phil Moderator, The Engine Shop, Interiors and Project Journals
1952 Chevrolet 3100, Three on the Tree, 4:11 torque tube Updated to: ‘59 235 w/hydraulic lifters, 12v w/alternator, HEI, PCV and Power front Disc Brakes Project Journals Stovebolt Gallery Forum
If your pad has slits, you should be good to go with the original push pins. I don't know about the column issue. Apparently my hard pad is different than yours.
1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission
As soon as I have time, I’m going to give it a go. If the steering column needs to be removed, it will not be installed. I’ll have to get the soft type as you suggested.
Phil Moderator, The Engine Shop, Interiors and Project Journals
1952 Chevrolet 3100, Three on the Tree, 4:11 torque tube Updated to: ‘59 235 w/hydraulic lifters, 12v w/alternator, HEI, PCV and Power front Disc Brakes Project Journals Stovebolt Gallery Forum
Today I installed my firewall pad. I didn’t have to remove the steering column, but it was not easy. Aside from having to re-route five electrical wires, disconnecting the oil pressure line, draining the radiator, low enough to remove the temperature sensor bulb, temperature gauge line and vacuum hose for the wipers, I also had to remove the bracket for the cowl vent which stuck down too low. Doing so, also involved removing the ignition switch housing, as the cowl vent bracket and the ignition switch housing share the same mounting hardware where they both are attached to the lower dash, something I struggled with when I re-installed it.
I followed my original plan and sliced the pad where the main wire harness goes thru the firewall. It’s so high up on the firewall, nobody will ever see it anyway, and I was not going to cut and splice any of the harness. To get it over the steering column, I bent the pad. It was really tight but I was able to wiggle it into place. Once the pad was in place, I installed a couple of pad retainers to hold it until I check out the position of the pre-punched holes. They were not centered very well and I had to enlarge a few. It was easily accomplished using a Dremel with a barrel sanding attachment. Once I routed the removed lines thru the firewall and installed all of the grommets, I installed the remainder of the pad retainers. Most, I was able to install, but the two on the top center were way off. I ended up drilling new holes, a task not easily accomplished with padding between the firewall and the ABS plastic face. So I wouldn’t wrap the padding up in the drill bit, I drilled a tiny hole from the engine side then used a drill slightly larger than the firewall hole, drilling from the inside. The bit still grabbed the padding, but I was able to stop before I did any real damage. It took me almost four hours.
It looks great and a 15 mile test drive proved, that I accomplished what I had set out to. At full engine temperature it’s allot cooler in the cab and it’s also, allot quieter.
Aside from a having a bit of back pain from having to contort myself in ways the human body was never meant to be contorted, I’m very happy with the results.
Phil Moderator, The Engine Shop, Interiors and Project Journals
1952 Chevrolet 3100, Three on the Tree, 4:11 torque tube Updated to: ‘59 235 w/hydraulic lifters, 12v w/alternator, HEI, PCV and Power front Disc Brakes Project Journals Stovebolt Gallery Forum
Phil Moderator, The Engine Shop, Interiors and Project Journals
1952 Chevrolet 3100, Three on the Tree, 4:11 torque tube Updated to: ‘59 235 w/hydraulic lifters, 12v w/alternator, HEI, PCV and Power front Disc Brakes Project Journals Stovebolt Gallery Forum
Come on now! I worked hard to get it that way! Now I know why Tuts 59 questioned (in my Project Journal) why I didn’t do the firewall pad first!
The original mats had the steel nubs to hold the mat in place. The repo mat didn’t have the holes (for the the nubs) and the firewall pad held it down nicely. Now I have to figure a way to punch those holes. I need a hole punch kit. More tools, yeah!
Thanks Carl, for straightening me out!
Last edited by Phak1; 07/07/202112:29 PM.
Phil Moderator, The Engine Shop, Interiors and Project Journals
1952 Chevrolet 3100, Three on the Tree, 4:11 torque tube Updated to: ‘59 235 w/hydraulic lifters, 12v w/alternator, HEI, PCV and Power front Disc Brakes Project Journals Stovebolt Gallery Forum
I knew they it goes over the firewall cover but I liked it under it so on my panel thats what I did......and no one said anything about it....until Carl came along I think it just looks neat under it. They were just in a hurry on the assembly line.