Is the John Deere 8640 a pay loader?
Is the John Deere 8640 a pay loader? It did not stand up well in the ag tractor but in the John Deere pay loader it ran untouched for many thousands of hours. Many of the 8430 8630 8440 8640 8450 8650 8850 have had head gasket issues. They are costly to fix because of the labor to do a clutch job you have to disassemble so much of the tractor. How tall is the exhaust on a John Deere 8640? I have the John Deere technical manual for a 8630 that used the same engine. Head bolts were tightened...