[majin]

Been experiencing with this a few years back, now sharing this on this forum. 2JZ retainers: titanium or aluminum. Aluminum is shown here, slightly wider than stock. Can be trimmed down to stock diameter on a lathe. Titanium is drop in.

 

[Sabertooth^2]

Neat. And the 2J springs work as well?

I've also heard that springs from a Foxbody 5L work