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when dozer transmission warms up no power to push,any help thanks

NO,the final drive shaft in a 550A wide track T81196 shaft,some have a bearing some a bushing.The orignal that was in mine has a bearing the one I found has a bushing.Does it make a difference?

I finaly found a pinion shaft,does anyone know why JD used bearings in some shafts,and bushings in others?My origonal shaft has a bearing,the one I found has a buishing what is the difference?

Thanks for letting me know.

Any one know where I can find this shaft? T81196 thanks

I put all new stoof in the final drive except for a new pinion shaft #T81196 so I have been told by local JD dealer,one dealer sent me a pinion for a narrow track when in detail I told them it was a wide track,another sent me the brake shaft.This #supose to be right my shaft is 12 15/16 L 10t 27t.As...

I have a 550A,bearings went out in final drive,replaced all parts,except for pinion shaft, no one has one,24" tracks. 27T 10T 12 15/16 long any help? thanks Also when in use after machine use for about 1 hr or so stops pulling,aly help?thanks