Rebuilding my First JD GT
Does anyone know what if any the difference is between a 420 and a 318 drive shaft.
Good one, I forgot all about that. When I did the driveshaft for my truck I used these. https://www.harborfreight.com/1-inch-roller-ball-bearing-67060.htmlThe 420 shaft is longer because the whole tractor is longer. If you are going to weld the shaft I recommend using a piece of angle iron to keep it all straight. Do as mentioned above with the "V" groove and then lay both pieces in the angle and spot weld all four places around the shaft before welding it up. It helps to clamp it to the angle to keep it from warping as it gets hot. Info that I have is 316 with B43 is 13 3/4-318 with P series is 15 and a 420 is 18 1/2.
That depends on the model numbers. Some of them had the same crank but some did not.Ok moving on to needing a driveshaft brings up another question.
Is there any difference in the length of motors from flywheel to PTO between the P218G and a P220G? I’m seeing several P220G driveshafts from 420 tractors on eBay and trying to figure out if the P220G drive shaft from a 420 will work with a P218G out of a 316.