TH 350 Shift Improvement Kits?

[Steeveedee]

It's been awhile since I've installed a shift kit, but IIRC, they come with new balls, and they are steel. I've removed some pretty pebbled balls made from whatever GM used in their transmissions. Some kind of plastic. Trans-Go kits were more involved, while the B&M kits were pretty basic. But I could get 3rd gear rubber when I put a B&M kit in a Vega panel truck I had. It had the 3.36 performance axle and a GT (progressive 2-bbl carb and a bigger cam) engine. Surprised a lot of people at stoplights. It being a panel truck, it was also a lot lighter than the regular Vegas. I put a 305 SBC in one. That thing surprised a lot of people, too.