Free helpful advice for everyone with FJ20T starter issues.
The picture shows an alternative to use that has twice the cranking power of an FJ20 or RB.
You'll need to reuse the standard front driving cog assembly which pulls straight out when ring cover removed. You'll also need to get a 2.5mm flange spacer made.
You may need to upgrade your supply cable to the starter.
Works great, no issues, easy to find.
Hope this helps everyone.