WE SERVICE & REPAIR BRAKES, CLUTCHES, DIFFERENTIALS, TRANSFER CASES, ENGINES, TUNE-UPS, COOLING SYSTEMS AND MORE. GIVE US A CALL WE CAN HELP (760) 741-7861 |
TRANSFER CASES GEAR AND CHAIN DRIVEN, PART AND FULL TIME PLUS ACTIVE ON DEMANDGEAR OR CHAIN DRIVENThe gear driven transfer cases use a gear set to drive the front and rear drive-shafts. They are stronger, heavy units that are usually found in larger trucks. The hard-core four-wheelers prefer the gear-driven because they can withstand greater torque without breaking. Most present-day transfer-cases are chain-driven, and are not as strong, weigh less, and are quieter than the gear-driven They are usually found in smaller trucks, cars etc. |
PART-TIMEIt used to be that almost all transfer cases fell into one of two categories: part-time or full-time. A part-time transfer case is one that can shift between two- and four-wheel drive, allowing the driver to select the mode that best suits road conditions. Wear on the front-drive components is reduced with a part-time system, since they’re not always engaged, and fuel economy is generally better for the same reason. |
PART TIME TRANSFER CASES
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FULL TIME PLUS PART TIMEA full-time case is permanently in four-wheel drive, so no action on the driver’s part is required to engage the system. In order to use a full-time transfer case on hard-packed surfaces without binding the driveline, the case must be built to allow driveline slip between the front and rear wheels. Some (like the NP203) contain differential gears inside the case, while others use some sort of clutch or viscous coupling between the T-case and the front driveshaft. In both cases, there is typically a means to lock the slipping mechanism for a true 50/50 torque split when conditions warrant. |
NV242 FULL TIME
FULL TIME PLUS PART TIME
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NVG246 AUTOTRACThe latest developments in transfer case technology include hybrids that combine full-time and part-time functions in one unit. Shown here is GM’s NVG246, otherwise known as the Autotrac system. It uses a number of sensors and its own computer to direct torque when in full-time mode, plus it has the traditional part-time 4-High and 4-Low modes as well. The Autotrac system is found on fullsize GM trucks and has made its way to the midsize TrailBlazer and Envoy SUV |
NVG246 AUTOTRAC |
TRANSMISSION REPAIR, SERVICE & SYMPTOMSNeglect and overheating causes 90% of all transmission & transaxle failures per industry feedback and most of them are due to worn out transmission fluid. Regular transmission service can help avoid major transmission repairs |
DIFFERENTIAL REPAIR, SERVICEHigh operating temperatures reduce the gear lube's ability to lubricate, which can lead to axle and bearing failure leading to major differential rpairs. Differential service includes draining &fillin with new gear lube. to avoid expensive repairs. Most manufacturers recommend differential service every 30.000 miles. |
