No, it is one of the best I have found for durability.

87 baja 240that i converted to teague 620 ITS Bravo XR boat

Double and triple check your alignment. Does this have the longer U-joint shaft? Make sure the alignment tool is 'square' and 'centred' to the bellhousing.

Daredevil.
Let me see if I can explain.. the NXT does have a transmission in front of it.. It sort of looks like someone took an XR upper and tipped on it's side. The input shaft goes into the top of the upper and the output is taken from the bottom of it. So the XR upper input shaft is removed and the pinion gear acts like an idler gear and only transfers power in reverse. On the other side there is another gear that drives an oil pump.
So when you are in FWD the input shaft enters the transmission and is connected to the clutch shaft. The cone clutch is locked into the gear closest to the output shaft, which is (the gear) connected directly to the output shaft. What goes in, goes out.
Now in REV, the input shaft, connnected to the clutch shaft, has the cone locked into the gear closest to the input shaft, which rotates the idler gear ( pinion gear in the XR upper) and transfers motion to the gear closest to the output shaft but rotating in the opposite direction.. What goes in goes out, opposite.
The shafts in the transmission are different than the XR and I think from the pics in the manual they are not even XR gears, just the cone clutch looks the same, but it may not be either.
I hope this makes better sense. I could scan the pics in the manual and send it to you. I dont care to reproduce it on the board, may infringe on some copyrights.. Hate to tick off the Big M!! :)
Dick

Kaama,
The X gears wont live in your situation. The five blade props will eat the teeth off the upper gears. I have seen it in just the past few weeks! That small 32' AT isnt that small.. :( If you are willing to go back to four blades and baby it, then the X gears may live. It might be worth a try, but if it doesnt work, then you end up with lots of metal and down time. You are better off with the XR's. If you want to upgrade... we can put a pair of the SCX's on it.. and be done with it.. and maybe bump up the power to 950hp.. :) :)

Dick

Them 5 blade prop's anyway !!!

Maybe I ought to do a gear reduction so that I can run with 28" 5-blades to take some stress off the drives. Perhaps this would also give me some better cruising speeds. :)

That is what im doing i'm going from a 1.36 to 1.5 and turning my motor harder from 6000 to 6400

Thanks, that was very informative .

Speedmaster
 

HI Steve would you give us the name of the gear oil 80/140xyx i think i should us it in my drive
Thanks Rich