Made my own brackets. I started by trying to cut apart and reuse the 80 brackets, but eventually decided they were more work than they were worth. I've seen threads where others used those Planted brackets with the Audi seats, but they required modification, so why not start from scratch?Did
what bracket did you use for the Audi seats? Took I take another brand factory manual seat with the planted 80 bracket and it my be close to plug and play ?
The Audi seats are designed for their rails to bolt straight down on a basically flat floor. The base on them is much wider than the Toyota floor and barely fits in the location. My solution was to make two cross braces that tied in to the Audi bolt points. The one in front was just a piece of angle trimmed in such a way to bolt to the factory 80 mount points on the front of that big rib in the floor, so the angle rests over that rib and the Audi rails bolt down onto it. I had to clearance that rib a bit with the BFH at the inside corner where it meets the trans tunnel. The rear was basically just a chunk of unistrut with some legs welded to it. Most of the strength is in the front bracket and I suspect it's actually a lot stronger than the stock arrangement, so I wasn't worried about the rear being less robust.
In the end, several people have used the Audi seats and they are very comfortable, but I suspect there may be easier options. The nice part is there is a TON of adjustment in the Audi seats. They'll go back far enough that they nearly touch the back seat, and as far forward as the OEMs, plus a ton of vertical range... though I pretty much keep them bottomed out due to the location of the steering wheel.