If you're not romping constantly, you'll get good luck out of most major builders. Price issues might deter you from going ultra strong. TCI, Art Carr, Morrison, etc have good stuff. I have used Mike' Transmssions for years and have no failures and they give great customer service when questions and advice needed come your way. Their last tranny I bought as a 700r4 was almost 1600. I know it's a bit pricey but I needed no failure and the thing is still going strong. DO some pricing and get on the horn and push any supplier you wish to see how well they wanna deal and service your app.