Preventing rust on your ride - Page 3 - Chevy and GMC Duramax Diesel Forum
Exterior Talk about the exterior of your truck here.

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post #21 of 35 (permalink) Old 02-09-2015, 05:20 AM
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My father-in-law bought a F150 new and He washed it every day it got in the salt. After a few years it rusted from the inside out because washing doesn't get the salt out of the bays that catch it. You still need some form of rust prevention spray to adhere to the good metal and protect it (make a barrier) from the salt sitting on it.
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post #22 of 35 (permalink) Old 05-28-2019, 09:52 PM
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This is an older thread, but I am curious to see if anyone has follow up reports on what has been mentioned, I just purchased my first 2500 Dmax, and would love to keep it rust free. I will soon be moving to a state that does salt the roads. right now I am in southern California, no rust what soever... Thanks in advance.

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post #23 of 35 (permalink) Old 05-29-2019, 03:46 AM
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This is an older thread, but I am curious to see if anyone has follow up reports on what has been mentioned, I just purchased my first 2500 Dmax, and would love to keep it rust free. I will soon be moving to a state that does salt the roads. right now I am in southern California, no rust what soever... Thanks in advance.
Buy a winter beater to drive in the salt, that's my solution.

04 GMC LB7 2500 SAC 45 injectors DSP5 EFI live from LDS, ported air inlet. 4" MBRP droning exhaust.
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post #24 of 35 (permalink) Old 05-29-2019, 05:26 PM
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77Cruiser, thats kind of what I am thinking... its what everyone did in Vermont prior to me joining the military and moving.

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post #25 of 35 (permalink) Old 06-12-2019, 02:41 PM
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Originally Posted by tobyhd02 View Post
This is an older thread, but I am curious to see if anyone has follow up reports on what has been mentioned, I just purchased my first 2500 Dmax, and would love to keep it rust free. I will soon be moving to a state that does salt the roads. right now I am in southern California, no rust what soever... Thanks in advance.
I swear by Ziebart, I have for years. Yes it cost and be sure you do the annual inspections.

Here is a photo of the underside of a '84 Cadillac Fleetwood that I bought from a seller in MI recently.
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post #26 of 35 (permalink) Old 06-12-2019, 04:57 PM
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that looks brand new!

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post #27 of 35 (permalink) Old 06-12-2019, 06:01 PM
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that looks brand new!
Like the rest of the car?

If I get a chance I'll take a photo of the underside of my truck. I bought it used in 2014 and it is a 2011 and I had Ziebart hit it. Places where I want the paint not covered they hit it with something that looks clear but has a greasy/waxy feel to it. Even with rust proofing you should keep the salt washed off as much as possible. Usually with GM vehicles the door bottoms rust from the inside out where water/moisture gets into the fold seam at the bottom. Some people pull the door interior cover and hit that seam with POR-15. That stuff is almost bullet proof rust prevention. The '84 Cadillac Seville I am working on I applied POR-15 inside the wheel well behind where the fender goes. There won't be any rust there anytime soon. A 100 years from now in a salvage yard it won't even be rusted. LOL
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post #28 of 35 (permalink) Old 06-12-2019, 06:12 PM
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I have a restoration project on the Seville that I have been working on. Some a$$ over charged the A/C system and blew out the evaporator coil on the firewall. Talk about a PITA to pull and replace. I thought what the hell I'll pull the fenders and have the radiator support powder coated too. This was a FL car with not much rust.
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post #29 of 35 (permalink) Old 06-14-2019, 06:27 PM
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Thats awesome work! very nice.

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post #30 of 35 (permalink) Old 06-23-2019, 02:50 AM
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Purchased my 2004 2500HD CC new from factory. Washed it religiously throughout it's life...and rust crept in.

I made sure to wash undercarriage and make sure the drains on back of rockers were always free from dirt and open. The rockers rusted from the inside out.

Three years ago I decided to pull the fender flares to see how things looked...found rust on both rear wheel wells. Found that dirt would get caught, and trap moisture. Cut out all the bad stuff, used panel bond adhesive to get new steel in there, it all fit under the wheel wells. Contemplated tackling the rusty rockers...then Mother Nature intervened.

In summer of 2017 baseball sized hail hammered my truck. Insurance covered the repair...and I swung a deal with dealership body shop...they replaced the rusty rockers and cab corners. It turned out great! Pictures to follow...

I'm working a deal to sell the Big Block and move to a Duramax. And of course will be looking at ways to prevent rust. There are way, WAY, WAAAAAAY to many trucks here in Nebraska with rusty wheel wells, rocker panels, cab corners. Sadness.
















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