New 8 3/4 third member recommendations

[1st_charger]

Looking for a new third member, what I know : I want 3.91 gears, a sure grip and 1350 u joint. The car is a 68 charger with a 6 speed manual and 425 hp, the car will mostly be street driven.

Questions, What gear brand and spline is recommended? I've heard Richmond's are noisy and are available in a 10 spline what about motive they come in a 29 spline? Is one stronger than the other?
Sure grips, auburn, true-trac, etc any advice there?

Best place to get one?

Thanks

[68CoronetRT]

Can you get a 1350 u joint for our 8 3/4 3rd members?

Call up Dr. Diff. He sells complete drop ins, setup and ready to go. Or check out his web page.

[1st_charger]

Yes you can get the the 1350 for the 8 3/4. I've looked at Dr diffs web page and tried to contact them through the web page question section, but have not received a response yet. I would call but I can't call during work hours .