Early John Deere 3010 and 4010 used a different front crankshaft seal (AR27354) which is obsolete
Enhanced IH Carburetor Repair Kit
OC3 Tractors
Replacement Numbers Delco 1960833
Seat Counterbalance Spring fits John Deere 2010 2510 3010 4440 Tractors R31260 Farmall Early John Deere 3010 andQuality Aftermarket Seat Counterbalance Spring Fits John Deere Tractor Models: 500, 2010, 2510, 2520, 3010, 3020, 4000, 4010, 4020, 4030, 4040, 4050, 4055, 4230, 4250, 4255, 4240, 4320, 4430, 4440, 4450, 4455, 4520, 4620, 4630, 4640, 4650, 4840, 4850, 5010, 5020, 6030, 7020, 7520, 8430, 8630 With Sound Gard Body: 2350, (SN 430000 and up), 2550, 2750, 2940, 2950 Specifications 3 5 8" (3. 625") relaxed outside diameter 5 8" (0. 625") wide Replacement