I am sure that many of you have gone through this before but I have a 1929 Model A roadster pickup. The seat is long gone but some guys have found other after market seats that would probably fit in nicely. I think the roadster would be the same but that is only an educated guess, Any thoughs or suggestions many thanks Mercuryguy
I used a Chrysler/Dodge mini van late 90s early 2000s second row seat. Fits well side to side and back tilt is adjustable. Has to be some of those still out there. FWIW, I have one with a fixed (not adjustable) back if you’re interested. Feel free to PM me
I happened across this 2001 Dodge Caravan 3rd row seat, free. If you keep your ear to the ground, there are lots still out there.It appealed to me because it has the mechanisms already in place to allow the seat back to fold forward and also the seat bottom to fold up. Great for storage. The 3rd row seat frame is wider, which allowed for a more precise fit after narrowing it by cutting and removing a few inches. I removed all the unessesary mechanism and excess weight and added my own adjustment features which allowed for 5" of fore and aft adjustment (probably not needed for a pick-up or even a roadster?) The completed seat is less than half the weight of the original "A" bench seat, sits lower and very comfortable. The original foam can be used/modified and recovered to suit.
There are 2 widths to the minivan seats. One is around 36" and the other is 42-45". The Aerostar rear seat is another option. It is 45" wide.
I've got a Surbarban seat that is supposed to be the two **** wide third row seat from around 2010 out in the van I stash stuff that I intended to used for the back seat in the 31 Model A victoria I had. It would be too wide for a roadster at 49.4 according to the specs.
I know the Caravan seat is popular to use in roadsters but the space inside an RPU is so tight, consider making one. That's what I did in my T roadster and I was able to maximize precious interior space by attaching the rear upholstery and foam directly to the back of the cab panel, and I made a wooden base with foam and upholstery to sit on the floor for best seating position. In a regular A roadster (not an RPU) you can push the seat frame back under the rear deck panel a bit to gain legroom but you can't do that on an RPU. This was done on the extreme ultra-cheap (I got the roll of vinyl at an auction for $8 and the foam for free) and I didn't have my sewing machine yet so I did it all with staples and glue. Now that I know how to sew and have the machine I would consider redoing it with more pattern but I'd still use this layout as opposed to adding in a whole seat frame, I'd never fit otherwise.
I had a pair of CJ-7 seats in my '29 CCPU. Too, Jeep seats are designed to be weather proof and would be perfect in an open car.
For maximum leg room, a piece of plywood with foam glued to it for the back (foam doesn’t need more than 2”) & then a bottom cushion built up from foam or use stock springs. The foam will be more comfortable.
Found this one at a swap meet. Don't know what it's from but had to shorten it and lower it to fit my roadster. The guy I bought it from said he thought it was from a Chevy but when I started to cut it down and weld it to size it had Ford stamped on about every part of it.
As narrow as the body is, I opted for using bucket seats. Now my 28 Mercury Torpedo Salon has Mustang II suspension -- for my *** I mean. Probably hard to find them in a junk yard like I did many years ago.
I would wonder about seats from some of the oddball vehicles that have been produced during the last 30 year period. I'm talking about some of the boxier looking small vehicles like the Scion, Cooper, Soul, etc. that might have a back seat that folds but is narrower than most compacts.
As has been noted the RPU is tiiiiiight. Our Coupe had standard interior that was a problem with for my 6'1" 265 lbs to fit in. I did the foam and plywood seat and got enough room. But, it was foam and plywood and looked like it. The solution wasn't cheap but I like the results. I bought a Glide seat frame and foam. I got the stock pattern material from Clastique and had it done in the later pattern (I didn't like the smooth look of the 28/9). I still need to order some more cloth to redo the side panels where Henry saved 2 cents per car by not having them meet the side panels in the rumble seat. I trimmed the rear shelf and moved the seat back 5". My bad back likes the adjustable angle of the backrest. https://www.glideengineering.com/copy-of-product https://www.cl***tiqueupholstery.com/index.php/hardware-yard-goods
I bit the bullet for a Glide seat for my '39 p/u. The guy who did the upholstery said not to get the foam from Glide. He wanted to use his own. Very happy with the results.
As mentioned the 2nd row seat in a Mopar mini van fits very well in a model A and folds forward (most of them)