krustyballer16 Posted December 14, 2021 Share Posted December 14, 2021 Had anybody used these or similar? https://www.summitracing.com/parts/sit-sgs3-5-100 Was gonna try them on my firewall and Trans tunnel foe the Holley harnesses. Pros? Cons? Sent from my SM-G973U using Tapatalk Link to comment Share on other sites More sharing options...
zomeizter Posted December 17, 2021 Share Posted December 17, 2021 That shtuff looks legit dude but I reckon the I.D. needs to be "filled" with the harness to keep water out? Only one way to find out... Link to comment Share on other sites More sharing options...
krustyballer16 Posted December 17, 2021 Author Share Posted December 17, 2021 I'm looking them up right now. Ya, I'd assume it'd need to be a tight fit to be completely sealed. The problem I have is I need a 2" hole for the plug to go thru but then then harness is only ½" around so I need a big outer area and small inner area but a regular grommet won't work like that.Sent from my SM-G973U using Tapatalk Link to comment Share on other sites More sharing options...
zomeizter Posted December 17, 2021 Share Posted December 17, 2021 Unless you have a show truck, a good quality sealant will also do the trick in the existing perforation after harness placement...I like simplicity though, you do you... Link to comment Share on other sites More sharing options...
cruiser54 Posted December 17, 2021 Share Posted December 17, 2021 I've just taken a grommet that fits, sliced to the middle with a razor blade, removed enough material to make the harness fit snugly. Use black RTV to seal as needed. Link to comment Share on other sites More sharing options...
gogmorgo Posted December 18, 2021 Share Posted December 18, 2021 When I have to run wires through a body panel at work, I typically just drill a hole, de-burr the edges, run the wire through, and then gob enough silicone around it to hold it in place. It works well enough, but then we're not fording rivers or anything with our work trucks. I would be hesitant to rely on aluminum for any sort of seal if road salt is involved, although it looks like the aluminum mostly holds the seal here. There's some decent bulkhead connectors out there that I would prefer to use on something I was building for myself rather than having continuous wires running through a panel with a grommet. I've had pretty good mileage out of Deutsch connectors in heavily wet, salty, corrosive environments, although I've never specifically used one of the bulkhead connectors yet. Link to comment Share on other sites More sharing options...
Parei_doll_ia Posted December 18, 2021 Share Posted December 18, 2021 On 12/17/2021 at 7:34 AM, krustyballer16 said: The problem I have is I need a 2" hole for the plug to go thru but then then harness is only ½" around so I need a big outer area and small inner area but a regular grommet won't work like that. You could use a cut to size grommet, just use what you need and fill the rest with RTV. You could also de pin the connector and pass them through a 1/2" hole Link to comment Share on other sites More sharing options...
krustyballer16 Posted December 18, 2021 Author Share Posted December 18, 2021 This is what I'm needing to cover... the plug I cut a square hole in is for another hole in the firewall. Doesnt fit this hole perfect and the square hole doesn't fit the harnesses right lol. But it may work for now. Link to comment Share on other sites More sharing options...
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