Can you modify stock seat tracks for more leg room on a 1965 Mustang coupe? - Ford Mustang Forum

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post #1 of 8 (permalink) Old 01-21-2011 Thread Starter
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Can you modify stock seat tracks for more leg room on a 1965 Mustang coupe?

Was wondering if it's possible to modify stock seat tracks to get a little more leg room? Anbody try this?

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post #2 of 8 (permalink) Old 01-21-2011
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Someone will chime in but I heard it said that you can just move the lower seat track back by redrilling the mounting holes in the track.

You must be pretty tall. I am 6'1" and have plenty of leg room. I just wish I could get the steering wheel further away from me as I look like an old granny driving down the road with my 35" arms folded up in front of me.

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post #3 of 8 (permalink) Old 01-21-2011
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The seats sit up on a box and you would soon run out of anything for the tracks to bolt to.
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post #4 of 8 (permalink) Old 01-21-2011
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Adaptor plates could be made to offset the seat backwards. The original track studs would have to be shortened. The adaptors would need to be a minimum of 3/8" thick and probably 1/2". This would raise the seat some, but it may not hurts as the seat is moved back.

Use 1/2" x 1-1/2" bar stock. Dill and counterbore for 5/16" bolt (fron the top side), then weld the bolt heads in the counterbore. These welded bolts replace your original track studs and must be at the same center to center as the originals. Now, move back on the bars as far as you want to move the seats and drill and counter bore the other side of the bar stock for the 5/16 studs that are on the tracks. Mount the adaptors to the tracks with nuts and cut the original studs flush with the adaptor, then set the seat with the mounted adaptors in the car like you normally would.

Keep in mind that you would need to leave plenty of adaptor length towards the rear to allow for your intended offset and if the seat ends up overhanging the box, I would suggest adding some support down to the floorpan.

I have not done this, but I have recently became very familiar with my seats and can see this working very well. Some thought and inspection should be given to the height that adding the adaptor creates.

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post #5 of 8 (permalink) Old 01-21-2011
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I added an adapter between my tracks and the floor pan and went 1"-2" farther back on the front mount. I'm 6'1" and now have plenty of leg room in my '67. Ford put out a fix for this for the '69>? there's an official page on this somewhere if I can find it.

I also installed foxbody seats/sliders when I did this but don't see why I couldn't have used them on the stockers too. I used 3/8" thick X 1" wide flat stock steel and grade 5 carriage bolts (highest grade made I was told by fastenal). If I find stronger flat head bolts I'll swap them out. i didn't have to drill any new holes in the floor or seat, just the track bottom. I felt that 3/8" was thick enough as the tracks are only ~1/8" thick steel?
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'67 Coupe 289 stroked to 333, AOD, 9" w/3.50:1, PDB, Candyapple red w/red deluxe int., PS, ext. decor group, light group, foxbody seats.
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post #6 of 8 (permalink) Old 01-21-2011
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Came across this TSB for this very issue.
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post #7 of 8 (permalink) Old 01-22-2011
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post #8 of 8 (permalink) Old 01-22-2011
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