bench seat transition

[54Illinois]

I want to add seat belts in my 54 Plymouth.  The OEM seat has no way to add belts coming thru the seat.  Anyone using an after market bench seat?

[nonstop]

The original owner added lap belts to mine years ago with original seat. Mine is Dodge, but probably the same seat...

[DJ194950]

With 2 door cars the back flips forward and gives a space between front and back to slide a belt through and then bolt to floor with heavy washer.

 

4 door cars back are soild steel side to sideon the backs which your car seems to be. How to get belt behind upper seat part, I believe is what he's asking about.

 

You can cut a hole through the steel back AND upholstery but if it's already in nice shape then what?

 

I faced the same problem and decided to run it behind and under the front seat cushion at the back edge of the cushion and bolt to the seat lower frame metal below that. But to keep the seat cushion from rubbing in the seat belt material I cut a slot in the rear edge of the lower frame and passed the belt through that with some rubber edgeing in the hole and bolted the seat belt mounting  point from the underside, making sure that the bolt mounting area was not in the way of where the back,lower edge of the seat frame would not  sit/ hit it.

 

1 idea only perhaps others have come up with something else?

 

Doug

[james curl]

On my 4 door I had to cut slots in the seat frame in the rear ledge that supports the back of the cushion and line them with split rubber tubing to get the seat belt up behind the back of the bottom cushion.  With yours wrapped down under the  seat frame then up an around the back side of the cushion if you ever need the use of the belt in an accident the cushion will deflect and allow a lot of movement.

[DJ194950]

The best would be through the back of the seat and bolt to the floor. My belt set up on the inner side (fixed lenght ) was not long enough without passing tru the recently upholstered back side of the seat.

 

My belt in 100% bolted to the seat base and not the cushion. Some downward deflection of the lower cushion was not avoidable when a good pull was put to the belt, but the pass through point of the belt was as far back and high as possible to minimize this as much as possible.

My seat back extends down below the top of the bottom cushion when installed, therefore I the made the best compromise -I thought.

 

I hope that I'm being a little clearer on the explanation this time.

 

Doug