65 fastback said:
Mustangs Plus has a great Tech Article on removing the raised seat platform to create greater head room and providing more leg room.
http://www.mustangsplus.com/tech/seat/index.html
Tim
OK folks, I just spent the last couple of days doing this to my 65' coupe with 4 speed and pony interior. Sorry no time for to take pics, but I'll list some of my experiences.
First of all, the work is not as simple as the article seems to imply. I've done numerous body panel replacements throughout the years and so I wasn't afraid to give it a go. I would not suggest someone try this unless they have the tools and decent mechanical abililities.
Using an air chiesal and a grinder, I spent 1 hour removing the driver's side platform and about 35 minutes removing the passenger side (experience from doing the driver's side helped.)
I next ground the old welds on the floor pan to ensure that the rebuilt platform would fit well flush.
It took about 1 hour to bend and refit the driver's side platform. The article mentions how to do the front and rear, but because the platform needs to wedge between the tunnel and the rocker, you must also do some modification on the sides. Lots of hammering, grinding, and clearing was required. Again, experience gained allowed me to do the passenger side in about 35 minutes. I shortened the pan approximately 1 1/4" total front and rear.
I then drilled numerous holes in the flanges of the platform and then plug welded the platform to the floor pan using my mig. I located the platforms slightly further to the rear of their original position. I can just barely put the nuts on the studs of the seats. I also had to cut down one of the seat track studs because it protruded through the floorpan mounting hole. Spent about 30 minutes per side.
I then installed the seat and discovered that the clearance gained by chopping the platform down 1 1/4" really seems minimal. My knees still hit the pony pistol grip door handles and the steering wheel when I need to use the clutch--and I'm only 6'2"!
So my opinion is that modifying the seat platform would be great for someone who has an automatic transmission. For those with a stick (and pony interior), it will give only minimal help when using the clutch.
My next step is to modify the seat tracks to see if I can move them back further. Anyone have experience in this that they would be willing to share?