Not really, I'd stick with the B518 designation. The trouble is now that I have made a quick search for info, this stuff is so old these days, there just isn't much info online. The other issue is now that I have been thinking about it again after many years now, the lockup converter issue is a problem compared to the way GM did it with electric control, where as TF only used a simple hyd. system which you don't have much in the way of blocking it from engaging automatically, I think. TF's had a not so good rep with their early lockups. The last one I had was in a 250 series 4x4 PU and it did what most all of them would do, lockup all the time so you couldn't put it in drive without stalling the engine. If I did build one now, I would want to eliminate the lockup converter system and only use the overdrive on the road. Since my last trans had an electric switch on the dash, it was a 92 model