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05-15-2016, 05:06 AM
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#1 |
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Registered User
Join Date: Jun 2013
Location: West Virginia
Posts: 6,427
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What's a good way to plug up a firewall hole?
Now that I've decided to put a newer model windshield washer pump under the hood, there isn't much need for that 3-hole grommet in the firewall. Is there a solid grommet I can shove in there? What else can I do that doesn't involve welding, rivets, or bondo? (And duct tape, let's not forget that solution!)
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05-15-2016, 06:32 AM
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#2 |
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Special Order
  
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,851
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Re: What's a good way to plug up a firewall hole?
Old sock or rag? Many trucks I've bought have had that method implemented
 Measure the diameter and maybe there is a rubber plug made in that size
__________________
"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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05-15-2016, 09:06 AM
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#3 |
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Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,945
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Re: What's a good way to plug up a firewall hole?
Don't be to fast in plugging that hole yet!
Depending on what pump and where you mount it you need to run wires and tubing through the fire wall. Later time you may need more stuff ran through the fire wall. Those little holes want hurt you much if left open for a while and see! 
__________________
1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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05-15-2016, 10:10 AM
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#4 |
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Registered User
Join Date: Jun 2015
Location: @
Posts: 890
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Re: What's a good way to plug up a firewall hole?
pull the hoses out and a little black rtv silicone in the three little holes will make a solid plug that can be reversed if you decide to go stock again down the road
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05-15-2016, 08:28 PM
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#5 |
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Registered User
Join Date: Apr 2016
Location: Emmett mi
Posts: 44
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Re: What's a good way to plug up a firewall hole?
Dormans help products makes plugs in all sizes,if you want you can get me the exact measurment on that hole and ill get you a part number any good parts store can order for you
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05-15-2016, 08:38 PM
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#6 |
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Senior Member
 Join Date: Jan 2010
Location: Here
Posts: 5,592
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Re: What's a good way to plug up a firewall hole?
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