Other problems...lol....
-output shaft a must
- cases crack ...I went through 4
- low range gear set teeth tend to peel off...yeah just idling
Don't put a D20 behind a doubler...I ran one from 99 through 2011 behind a 351/ZF/NP203 ...
I upgraded and have never had an issue since the upgrade to a 418/ 4r70WluneV/ Atlas. I have since replaced the Atlas with the 205...perfect upgrade...
Nothing worse than driving a thousand miles to go to Moab or ? and break your D20...
Totally preventable with an Atlas or 205.
The Black box or 203 is perfect with the 205. Do the math as an Atlas 4.3 behind a 203 at almost 2:1 is too low for 99.5% of wheeling.
Do NOT believe anybody that says the 205 is too big, won't fit between the frame rails, is old.(well,true but any part you want is available), isn't as strong (rated at 10,000 ft lbs torque input, weighs too much...all bogus myths.
I weighed the 205 and the Atlas...less than 18lbs difference to save $2000...worth it for me.
My 205 behind my Klune is actually an shorter than the Atlas behind the KluneV with the same spacer.
Hope this helps some