Kubota #66091-61830 JOINT

(16 hours)
The first universal joint was installed in about an hour. The second one appears to have had a manufacturing defect which required a lot of study, calls to technical support, and turning a special tool on a lathe. In the end a very small amount of grinding on the cross and it went right together as it should. Of course getting the driveshaft out of the tractor, disassembled, and reinstalled were a significant amount of time, also.

6/13/2026
APEX, NC
Roger

(2 hours)
G1900S driveshaft: 1. Remove mower deck and elevate chassis (e.g.- front wheels on ramps, rear wheels chocked). 2. Remove Pin from rear Yoke Clamp. Some models have a Yoke Clamp with Bolt. 3. Unbolt (3 x 12mm) front triangular splined shaft plate from engine. 4. Slide assembly forward and off of transmission splined shaft or rearward and off of flywheel until free at both ends. 5. Maneuver assembly as far rearward as possible (between transmission fan blades), then over to the engine oil filter side of tractor, and finally out through the front. Note: The rear Yoke Clamp can be pried out between the bottom of the floor panel and the top of the horizontal frame tube, which has a hole located and sized conveniently to accommodate a large screwdriver for leverage. The oil filter can be removed for additional clearance (so if you're also performing an oil change, then leave the filter off until the end). 6. Use hammer, sockets, and bench vise to disassemble and reassemble U joint(s) just like any other (plenty of videos available on this). 7. Replace shaft and deck (don't forget oil filter if removed in step 5). Photos: https://www.orangetractortalks.com/forums/threads/g1800-driveshaft-replacement-tips.19047/post-656617

8/23/2023
MOUNT AIRY, MD
BYRON