Ok, I'm new to this site & I'm hoping to get some "expert" advice. I have a 1978 Mustang II Ghia, which is priceless to me. She is in pretty good condition...all original, special ordered with a v-8 302 and only 59,000 miles. But I have rust issues, mostly surface rust but it has eaten through in a couple spots. I don't know what to do & I'm freaking out. I have been told I need a new drivers rear, passenger front fenders & a passenger door.....but I don't think I have the money at the moment to fix this & I haven't even been able to find the parts even if I could. So I've come to the conclusion that I need to at least stop or slow the process for the moment. I've started sanding, but what about the spots that are eaten through? Is there a chemical or something I can apply to convert & harden? I bought some stuff...rust stop I think it's called from the auto store but I haven't applied it yet, there is probably something better out there. Can anyone help me PLEASE!! I would so appreciate it. This car has ALOT of sentimental value to me, I've had her for almost 10 years, was my graduation present! It/we came from MI and currently live in FL, but are headed back to MI soon. I also need advice on what to have applied to the under body. I had ziebart undercoat applied 10 yrs ago, but there is minor rust forming. I was told to have it undercoated again wouldn't stop the rust but would only trap it moisture. What do I need to have applied before I have it undercoated again?? Thanks for all your advice, sorry my post is so long.
One way to stop rust from getting worse until you can properly fix it is to remove the rust from the holes (clean them to bare metal) and then apply a rust-inhibitive/zinc-rich primer (Krylon makes an excellent one) and then apply either paint or a primer-sealer over it until you can properly fix it.
My '75 Chevy has a small rust out at each corner of the rear wheelwells that was treated this way a few years ago (I keep swearing one of these days I'll get around to fixing them right, but more important things keep coming up) to keep the rust-outs from getting larger, all are still the same size as they were then. I wish I could say the same for the bondo-filled rust from when I was younger and dumber in the front fenders and doors, now I have massive rust holes were smaller ones used to be. Oh well, live and learn, lol
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1976 Ford Mustang II Ghia: 302 with a 600cfm Edelbrock carb, Edelbrock Performer 289 intake, Dynomax Blackjack headers, 2.5" exhaust with Flowmaster Super 44s. RJS 11-gallon fuel cell, C4 tranny, chrome 16" pony wheels, fuzzy dice, brown vinyl half-top, and painted in the tackiest color ever (harvest gold, that's why I call it "The Goldenrod").
Also have a 2003 Dodge Ram (lightly modded daily driver/tow rig/office/dining room/home away from home/workshop... I call it "The Big Blue Dawg".)
POR-15, i used that on my complete floor pan and doghouse...it neutralizes the rust, and you dont need to re-zeibart. you can get it from Eastwood, some local body shop supply/paint stores, and frmo Por-15.com..... very very goood stuff
POR-15, i used that on my complete floor pan and doghouse...it neutralizes the rust, and you dont need to re-zeibart. you can get it from Eastwood, some local body shop supply/paint stores, and frmo Por-15.com..... very very goood stuff
Agree with all of the above and rust bullet is another good one . Also Mustang Unlimited sell replacement quarters.
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Dare to be DIFFERENT. Stay INLINE
1966 Mustang Vert., 200 CID I6, Autolite 1100, Candy Apple Red, black interior with black power top, C4 Auto Trans (was 3 speed manual), Scarebird 4 lug front disc brake conversion, dual MC in process.
1976 Cobra II, 302 CID, C4 auto trans. Blackjack headers, white with blue stripe and blue interior. Restoration and mod in process.
If your gonna repair it in a couple months and want an easy and cheap way to stop rust for a bit get some rustoleum primer and get some touch up paint in a can that will help and its cheap since your just gonna cut out the rust anyway to repair it and I don't think you want to spend alot on something your just gonna cut or grind off when you repair.
Need Rust advice 
Ok, I'm new to this site & I'm hoping to get some "expert" advice. I have a 1978 Mustang II Ghia, which is priceless to me. She is in pretty good condition...all original, special ordered with a v-8 302 and only 59,000 miles. But I have rust issues, mostly surface rust but it has eaten through in a couple spots. I don't know what to do & I'm freaking out. I have been told I need a new drivers rear, passenger front fenders & a passenger door.....but I don't think I have the money at the moment to fix this & I haven't even been able to find the parts even if I could. So I've come to the conclusion that I need to at least stop or slow the process for the moment. I've started sanding, but what about the spots that are eaten through? Is there a chemical or something I can apply to convert & harden? I bought some stuff...rust stop I think it's called from the auto store but I haven't applied it yet, there is probably something better out there. Can anyone help me PLEASE!! I would so appreciate it. This car has ALOT of sentimental value to me, I've had her for almost 10 years, was my graduation present! It/we came from MI and currently live in FL, but are headed back to MI soon. I also need advice on what to have applied to the under body. I had ziebart undercoat applied 10 yrs ago, but there is minor rust forming. I was told to have it undercoated again wouldn't stop the rust but would only trap it moisture. What do I need to have applied before I have it undercoated again?? Thanks for all your advice, sorry my post is so long. 
