which tranny
Slide under your bus on the curb side. There will be a 2X3 tag on trans side near the oil pan. Your trans is a AT 543, based on the passengers. This unit is very dependable with good care. The unit information is AT means Allison Transmission, 543 means 500 series about 750 pounds torque, 4 speeds, 3rd change made on this design. Most trans use a very good spin off filter for low repair. It is a good idea to have and use a trans temp gage. The fluid should be bright and shiney... Frank in Idaho
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