Operation CHARM
: Car repair manuals for everyone.
Home
>>
GMC Truck
>>
1992
>>
Yukon V8-393 6.5L DSL Turbo
>>
Repair and Diagnosis
>>
Transmission and Drivetrain
>>
Automatic Transmission/Transaxle
>>
Description and Operation
>>
Combined Ratio
Combined Ratio
The combined ratio is the combination of both overdrive ratio and drive ratio. The PCM/TCM interprets this as total or box ratio.