I don't know about using the 1010 and early 350 setup (with the spring loaded disk). I assume it uses a different flywheel, but I've never swapped parts between the different series. On the same note, I've never installed the later setup (from a 350D and on) into a 350C. 99% percent of my Deere mechanical experience is from working as a Deere mechanic at at dealership where innovation and parts swapping did not exist to a high level. We generally had to do things the way Deere recommended. But . . . I will say that I did not witness any failures with the newer isolators. With the old first style as used in 1010s and the first 350s I never saw one fail either. They'd get loose and noisy after a while but would not lock your engine up. In regard to the new isolators that came out with the 350Ds, and I guess were in the 400Gs when we went out of business - I never had one fail, so never had to pull one apart. I was recently reading that when Deere does their "certified relife" to older 350s, like yours, they install the later isolator. But with that deal, which can cost around $60,000, I guess money is no object. Can you imagine spending $60,000 to have your crawler refurbished? I think we were selling them brand new for around $30K, but maybe my memory is off. So . . . I guess I didn't fully answer your question. But . . . I've never done the swap, just know if CAN be done. Only Deere crawler I have is 1010, so I guess I won't have to find out. I'm not sure though, if my spring-loaded plate failed in my 1010, if it can even be bought anymore. Here's the parts list of what John Deere will put into your crawler for $60,000!ITEMRepower Engine 3 Cylinder 179 CU INTorsional Isolator AT77319Transmission/Steering ClutchAT125953 Steering Clutch (2)AT37548 Hydraulic Reverser ClutchWith ManifoldFinal DriveJD7424(2), JD8100(2), T112784(2)JD8939(2), JD7416(2)T59769(2), AT36097(2), JD9079(2)JD9114, JD9113(2), JD9048(2)Hydraulic Pump AT38801Valve 3 SpoolAT71452Cylinder Seals AR105454(2)Structure BushingAU13822 Pin (2)U11121 Bushing (4)Radiator AT32087Alternator TY161Starter TY6702Sheet MetalT32072 Left SideAT31177 Right SideAT104583 HoodUndercarriageAT104780 Roller (10)T129879 Sprocket (2)AT132705 Idler Roller (2)AT104595 Idler Kit LeftAT104596 Idler Kit RightAT148540 Track with Shoes (2)Push Beam AT58688Blade AT62829 (80 IN)Battery TY21741(2)Engine Wiring Harness AT64568Seat AT105140Fan Belt T24473Lights AT135486(3)Muffler AT21689Hourmeter AT160120PaintMiscellaneous Bearings and PulleysJD400G*CERTIFIED RELIFESPECIFICATIONITEMRepower EngineEngine Clutch AT160474Transmission/Steering ClutchAT125952 Steering Clutch (2)AT125713 Clutch PackAR56620 ManifoldFinal DriveJD7424(2), JD8100(2), T112784(2)JD9049(2), JD9114(2)T112785(2), JD8939(2), JD7416(2)AT117910(2), JD9113(2), JD9048(2)Hydraulic Pump AT15170Valve SealsAT160684AT160683Cylinder Seals RE20428(2)Structure BushingAU13822 Pin (2)U11121 Bushing (4)Radiator/Oil CoolerAT116777 RadiatorAT137547 Oil CoolerAlternator TY6750Starter RE50095Sheet MetalAT125863 Left SideAT125264 Right SideAT125864 HoodUnder CarriageAT104780 Roller (10)T129879 Sprocket (2)AT167258 Idler Roller (2)AT104595 Idler Kit LeftAT104596 idler Kit RightAT148540 Track with Shoes (2)Push Beam AT125207Blade AT116723Battery TY6128(2)Engine Wiring Harness AT161135Seat AT105140Fan Belt R82602Lights AT135486(3)Muffler AT83613Hourmeter AT86509PaintMiscellaneous Bearings and Pulleys* From John Deere Company
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