Richmond 5 speed and 2.88 rear

[ERA 778]

I have the RG 5 speed with a 2.88. The engine is a 428 FE that dynoed at 520HP at the builder. It works very well for the street and will blow the doors off almost anything in first and second gear. The first four gears match up very well with a wide ratio toploader with a 3.54 rear, so it's a lot like having an overdrive fifth gear.
My problem would be that all of the RG transmissions now are made in China, I believe, since the tooling was sold about 2 years ago. I hope i don't need any major parts in the future!