I found a killer deal on a new B&M torque master 3000 and couldn't pass it up. Does it have the same bolt patters as my flex plate (stock from the G20 van my th400 came from)? What length bolts do I need and what the hell does UHL mean (it is listed in the specs for torque converter bolt sets)?

Also, what does "New thrust washer between turbine and cover when required." mean?

One other thing, where would you guys recommend I get a new input shaft seal from, mine is leaking and I'm going to take the opportunity to replace it.

Sorry for all the questions, I'm a noob. Thanks in advance.