Is a good choice of engine. Marlin used this engine with the VW gearbox. But I could not fit the 6 speed gearbox in my older chassis. So rebuilt the PG1 with steel caged bearings. Has put up with plenty of abuse so far. Think the torsen diffs are a bit of a waste. It spins both wheels with ease anyway.
Good luck with the build. Post lots of pictures and updates
