Marlincrawler sells nylon replacements for the bushing and shifter seat. The bushing is pretty much the same as stock but the seat is stiffer. Also note there is a third bushing built into the interface armature inside the extension housing.... The part that the end bushing of the shifter fulcrum sits in. That armature (labeled
here as "HOUSING") has a metal sleeve with rubber surrounding it cast into it. A fair number of people have found that the aforementioned shifter seat and fulcrum cap/bushing were not the problem but the disintegration of the rubber around the receiving sleeve was the issue. There was someone on SM selling a replacement kit to repair it.
The green seat may be purchased from any place which sells OEM Toyota parts: Your local dealer,
www.ToyotaWorld.com,
www.HorsepowerFreaks.com,
www.DriftMotion.com . The fulcrum's bushing may be purchased from any of those sellers or
www.MarlinCrawler.com . The stiffer seat may be purchased from MarlinCrawler (note that while it will work in either transmission, the seat is a tighter fit in the W58 transmission and may need some light sanding around the circumference to ease installation). I can't remember who sold the kit to rebuild the extension housing's armature.
The bushing which goes on the shifter's fulcrum is 33548-31010. I can't find the part number for the seat at the moment. I'll post it when I have a chance to look it up if no one else posts it before then.