All right, where to start. LOL I bought a 40 series for my 420 predator. The plate was strong enough but somebody welded the back pipe with bearings crooked. I cut the plate almost in half and bend it at the seam and rewelded it to get the pulleys to line up. Then I noticed if I kept the rear pulley the way it was meant to be then the driver was slid comically far off of the engine shaft I looked online and some folks were talking about flipping the driver to the other side but I did not know what the results would be so I did not do it. I ended up with my 10th sprocket on the outside. I do not know if it'll work in that configuration however I also noticed the belt going on to the driver pulley was pushing hard to the right so I reduced my spacer and slid the pulley back towards the motor more in align with the belt? Can somebody look at my pictures and tell me if my pulleys are close to correct in alignment? And if anybody has any knowledge about the baby sprocket being on the outside and to whether it'll work or not? And the last but not least what is the most popular 40 series torque converter used for the predator 420? And yes I know the chain is loose I will be welding a tensioner for it soon.