Lonnie at Extreme Automatics


Jun 9, 2010
Being a ex GN racer from back in the day, I came to this forum to decide who to use for a TH200R4 for my LS powered 65 Skylark. After reading all the reviews, I chose Lonnie at Extreme Automatics.

I drove the car for the first time and the transmission works excellent. Even with this engine approaching 500HP, the strong firm shifts feel as solid as any TH400 I have had in the past.

Lonnie, you may not be the fastest transmission builder I have met, but this is by far the best performing TH200R4 that I have every driven. Two thumbs way up!