727 Thick Lug Pump Gears

At what point should these be considered?

I learned the hard way. Do not just let your foot off the gas as soon as you go through the traps. I told the trans builder my story, to which he replied " most of them let go on sudden decel" I can't give you a HP #, but I can tell you driving style can help or hurt. My 2¢ merry Christmas!

Also, whenever they need replacing, as the oem are discontinued, and the aftermarket ones are all over the place on tolerance.

Do high line pressures play a role?

Which tolerances Leigh? Are they correctable?

End play, tip to tip and outer bore. None are correctable.

You can turn your converter back & forth and feel the the play where the snout goes into the pump.When I upgraded the drum I also bought the max lug pump gears.The lug is wider and fits tight into the snout.

http://www.tcsproducts.com/products/product/tf727-max-lug-pump-gear-set/

Easier to put one in now then pull it out to put one in later .

as with many.... I upgraded when I broke a set, and last year I had my 727 out many times with weird breakage. Pro Trans was out so I ended up getting a set from TCS and had them fitted to my pump case. Knock on wood things have been holding up. It's been in my mind that changing to a clean N trans brake might have played a role in this.

I've never broke a set. Nor have I taken one apart with a broken set. Lucky? Can't say but I've built a ton of them. Currently running 2 cars with 850hp+ on stock parts, one has 500 passes.
Doug