Morris Minor Owners Club

With the seat brackets in their rearmost pair of holes I still find the driving position a bit cramped so had these extensions made.

Nice idea.

How about underneath as that are has a strengthening strip for the fixing which, from memory may even have a captive nut. Just bolting through a new hole in the floor, even if the steel is excellent could be risky if it tears under stress.

The rear fixing is a stud welded to the backing plate. The front two fixings are indeed bolted into the existing captive nuts beneath the floor.

That’s great, Any photos of the underside as I am 6’5´´ and would like to do something similar.

No new holes have been drilled in the floor of the car. It's a flat bar, the front hole is bolted to the original seat mounting hole, the second hole bolt secures the front of the seat mounting hoop and bolts to the rear original mounting hole. the rear of the mounting hoop is secured to a stud welded to the flat bar.
A great idea.

Ah, i see. Is there not a potential for lateral movement given that there is only one anchor pont to the car floor? What thickness are the bars?

The bars are fixed to the floor by the same two bolts that would normally fix the seats, if you are that worried you could make the bar longer and use the three floor mounting bolts. The flat bar can be any thickness that you want, probably 5mm will be more that sufficient.

I did not expect my post to create such a discussion. Paul300358 has got it sussed. If you look at the pick of the new plates, they are held by the original bolts into the original under floor mounted captive nuts. The hooped fixing bracket is held by the rear bolt above and a stud welded to the plate which has the nuts on in the photo. I consider the whole arrangement perfectly safe and secure. The new plates are 2mm thick, the same as the hooped brackets.

COMMANDER wrote: ↑Mon Aug 05, 2019 10:15 am With the seat brackets in their rearmost pair of holes I still find the driving position a bit cramped so had these extensions made.20190804_091411.jpg20190804_140709.jpg

You must be a tall person, or I'm just a short a**e

I love the fact that people are coming up with concerns about 'lateral movement' or 'stress', when the regular seat is just held down at the front, so any sort of collision just tips you forward into the windscreen anyhow....

I think stress or tears in the floor will be the least of any worries...

I have been tipped forward a few times when braking hard to avoid the numpties that cut across any classic car, but given the thinning of metal over the years I think stressing / tearing are valid concerns.

I have been mulling doing something similar for some time but using additional original type fixings in line with but say 4" behind the originals. They could be held in place using the unused holes and captive nuts rather than welded.

The parts exist and are about £13.00 each from CW. Has anybody addressed the legroom issue in this way ?