Floorpan Rust...

[gabe8496]

Best to replace the floor pan? or based on the condition of it?

My 84 (not the GT) has rust along side where the pan meets the back set. It's actually cracked. I'm wonderiing if I should just get someone to do a weld job on that..or should I just get new floorpans and replace it...

Any thoughts? I'll try to get pics of this later tonight :)

[TangStang]

Mustang floors are CRAP! The drivers side is really bad,(more use) and a lot of the time they tear under the seat. I would install new ones if you are in a restoration and get the floor support bracket that the FHP cars used. I would hate to see you spend money on a problem that could come back. If you repair, get the floor support. A lot of subframe connectors have these built in. If you have the rip in the sheet metal under the drivers seat just bite the bullet and get a new pan. I think they are around $130-140 ; you dont want to tear up carpet every few year to repair a rust problem. I'm putting 2 new pans in my '79 ; I used fiberglass about 7 years ago (In high school had no money) and really it held up. It's starting to get brittle and it really is not a nice way to go; dont get cheap is my advise :wink: good luck!

[gabe8496]

I'm gonna take your advise...I don't want to be fooling with this for soo long...

Basically...what your talking about is the cross section that bolt to the seat bolts (sounds wierd..)

[TangStang]

Yea, but there is a support piece that they used on FHP cars. I thought someone would have posted a link by now. Can't remember which company has it. I'm putting in new ones because I dont want to get on the gas and fall through the floor boards 8O

[gabe8496]

I found this site that uses thru-floor subframes and an additional bracket

http://www.wolferacecraft.com/pages/must_parts/subframe.htm

I'm wondering if it would be a good idea to do this while i'm at it...

[gabe8496]

When welding floorpans, anyone know what is better for it? TIG or MIG welding?

[Anonymous]

Go MIG

more room to work and a better weld

[Freejack]

My 79 had a serious amount of cracking on the left rear seat bolt (Must have been someone a little on the large side driving it for a few years). It was patched with a road sign and some sheet metal screws. I welded all the cracks and poured water over them to insure there was no leaks. I then custom made my own sub-frame connectors out of tube steel. I then welded to that a piece of angle iron than mounts to the bottom side of the seat mounting studs on that stick through the floor pan. This makes the floor pan very solid as compared to the way it was.

While the car is a long way from complete enough to drive, I'm hoping having the driver seat bolted directly to the sub-frame connectors will give me a better "seat of the pants" (pardon the pun) feel for what the car is doing at any given time.

Jake

[ashley roachclip]

this will be my first posthere ....so please bear with me ....I went to the link ....and I see that the trru the floor sub frame connectors were to fit ...." 73 thru present mustangs " ...there is a great difference between those particular years ....And the price is pretty steep ....I've seen sub frame connectors on other sites ...In fact I've got a set from a guy named
Rob for my t-bird and they are excellent ...he also makes them for the mustangs ....Check him out on Turboford.com in the parts for sale ...or look up on the search feature under subframe connectors ...I'm restoring an 84 mustang GT w/ t-tops ....has a crack at the rear seat ....but tnot at the front seat mounts .....has some very high gears ...2.79 limited slip .....and I kind of think that had something to do with the floor cracking ....this is a great site ....Ashley