Reply to "Upper seat belt bolt/nut question"

Hi Mikael,

There should not be a nut in the engine compartment. If there is it may be because the threads have stripped out of the original captive plate and that's a pain in the butt. You could Helicoil it but I think you would have to drill a hole all the way through the box section otherwise you will not be able to get the tap through to cut the new thread. But If you have a nut then maybe someone has already drilled all the way through? Other than that you would have to cut the box section open and weld in a new captive plate.
This is very easy all you have to do is pop the engine and tranny out!


The bolt is 7/16 UNF. This is the standard seatbelt bolt size across the industry even used on Japanese cars and still used in all modern cars as far as I know. Sometimes they put a metric head on it but it's always a 7/16 UNF thread. It's also the same size as the drive shaft bolts except they use a 5/8th head.

If you have any trouble finding the right bolts let me know I have lots. Whenever the garage next door to my workshop scrap a car I always strip out all the seat belt hardware.

If you buy a Kirk Evans firewall kit you will not have to remove the entire bulkhead to access the engine because it has a removable centre section so you never need to undo the seatbelts. I installed one of these in my friends car and highly reccomned it.

Merry Christmas!

Johnny