Interior Discussion about interior restoration, repairs, and modifications.

size of seat track nut

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Old Oct 23, 2017 | 11:06 AM
  #1  
cruise_carter's Avatar
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From: Clarington, Ontario
Car: 1986 Z28
Engine: 383 Stroker
Transmission: 700R4
Axle/Gears: 10 bolt 3.73 limited slip
size of seat track nut

Trying to get the drivers seat out of 86 Camaro.
nuts are rusted up pretty good on the floor mounting studs

been soaking in penetrating oil, next step may be a wrench and low pressure air hammer

after that may just try and split the nuts.

anyone have idea on size of threads on the 13mm nut?
thanks
Dale
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Old Oct 23, 2017 | 12:31 PM
  #2  
Drew's Avatar
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Re: size of seat track nut

Pretty safe bet they're the same M8-1.25 as pretty much everything else.
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Old Oct 23, 2017 | 12:56 PM
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From: Rochester NY
Car: 1984 TA (1 stock / 1 custom)
Engine: LG4 / turbo LQ4
Transmission: 700R4 / 4L80E
Axle/Gears: Stock / 3:50 Moser 9"
Re: size of seat track nut

Have you tried PB Blaster?
I’ve always had good luck freeing up rusted pieces with that stuff.
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Old Oct 23, 2017 | 01:30 PM
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From: Connecticut
Car: 1991 Camaro RS
Engine: 305 TBI
Transmission: WC T5
Axle/Gears: Torsen 3.73
Re: size of seat track nut

I think they were either 5/16-18 or m8-1.25
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Old Oct 23, 2017 | 07:41 PM
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From: Mantua NJ
Car: 1 Owner 1986 TA with a WS6 package
Engine: 5.0 EFI
Transmission: THM700R4
Axle/Gears: 277 Posi Speedo
Re: size of seat track nut

Originally Posted by Drew
Pretty safe bet they're the same M8-1.25 as pretty much everything else.
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Old Oct 23, 2017 | 11:12 PM
  #6  
cruise_carter's Avatar
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From: Clarington, Ontario
Car: 1986 Z28
Engine: 383 Stroker
Transmission: 700R4
Axle/Gears: 10 bolt 3.73 limited slip
Re: size of seat track nut

thanks for the info!

been blasting them with pb blaster, no luck
going to try a mixture (50/50) of atf and acetone this week

Dale
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Old Oct 24, 2017 | 02:47 PM
  #7  
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From: Rochester NY
Car: 1984 TA (1 stock / 1 custom)
Engine: LG4 / turbo LQ4
Transmission: 700R4 / 4L80E
Axle/Gears: Stock / 3:50 Moser 9"
Re: size of seat track nut

Maybe try one of these craftsman nut crackers:
http://m.sears.com/craftsman-nut-cracker/p-00904772000P
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Old Oct 24, 2017 | 02:52 PM
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From: MICHIGAN
Car: 1988 Trans Am
Engine: L03
Transmission: 700R4
Axle/Gears: 10 Bolt 2.73 Open
Re: size of seat track nut

Originally Posted by battmann
Maybe try one of these craftsman nut crackers:
http://m.sears.com/craftsman-nut-cracker/p-00904772000P
I have that exact tool. There isn't always clearance to use it, but when there is, it works great.
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