4" seat mod
To hell with Joann Fabrics. Just did the 4" seat foam. Went to Joann Fabrics, they wanted $80.00 bucks for a 24"x40" piece of 5" High Density Foam. Did not want to spend this much just to waste half of it by shaping it. And did not want to wait for a coupon in the sunday paper.
Solution: Went to Target and bought a workout mat for $25.00 bucks. It was 3/4" thick, a little over 24" wide and 73" long. Layered it up as in the pics in this posting. Glued them together with 3m product that I had from putting a headliner in a 67 impala and walla I had my apex style seat.
I think it actually worked better than the single piece of high density foam. Did not have to worry about making wrong cut on single piece of foam. Is not the least bit soft and once covered cannot tell it is not one chunk of foam. I think it is six layers thick and between the second and third layers put a 4" wide piece down the middle that caused all the others to be higher in the middle and made the overall seat narrower. More like a seat from a moto x bike. Could not be happier with my new $25.00 seat. All excercise mats are not created equal, I found some are more squishy than others. I choose to go with a more firm less squishy one and it worked well. The 4" seat mod is back to $25.00.
For you in canada it might be easier to find an excercise mat than a joann fabrics.
Please do not ask for pics as it is covered and stapled (with a couple Hundred staples) and on the trail tamer. Just use you imagination and try to get it layed up to look like the foam in the pics in this post. It cut well with an electric knife. And the cover went over seven layers fine and two layers molded up on the back piece of the seat.
To put the cover on brought in the house. Heated up the cover with a hair dryer and had a couple of Catalogs stacked up so could turn upsidedown and use catalogs to compress the foam and pull on the seat cover.
FYI, not mentioned yet in this post is you have to unstaple and cut out the two pieces of elastic that go around a metal rode that keep the stock seat cover held in placed. You will see what I am talking about once you get the cover off. Also I did not take the cover all of the way off. I left all of the back stapled to the seat and about 10-12 inches up the sides of the seat. Almost all of the raised tail section in back. This made it much easier to get the seat cover back on. I cut off the pocket the metal rod went through and also made a little cut in the foam so the seam would sit flatter once the cover was one.
Go get'em fellow TY'ers