Many variations in the input shaft length of Jeep T-18s. Some variation in top cover shape for some of the Ford T-18s older Ford T-18s have Reverse up and to the right, while newer versions have Reverse down and to the right. Put the transmission in First and spin the input while counting the output shaft rotations to verify First gear ratios. Identification: Cast iron case, cast iron top cover 11.87-inch case length. Also, both the T-18 and T-19 can unfortunately be found with underwhelming 4:1 and 5:1 First gears, as opposed to the desirable 6.32:1 First. In fact, some T-18s use the same top cover as a T-98. Old or dirty oil leads to destabilized viscosity and poor lubrication, which will prematurely damage your gearbox, transfer case, and/or differentials.Borg Warner T-18 The Borg Warner T-18 is one of the hardest granny-geared four-speeds to identify because it is nearly identical to its predecessor, the T-98, and its successor, the T-19 (T-19 has two PTO covers, right and left). Lastly, if you or your mechanic finds dirty gear oil during a checkup, it should always be replaced. Most mechanics will replace your gear oil after repairing a leaky component, but this is sometimes forgotten during home repairs. A leak could signal contamination or low levels of gear oil. You should also replace your gear oil if your transfer case or differentials recently had a leak repaired. Contaminated oil can seriously damage your gearbox, transfer case, or differentials with inadequate lubrication. For example, if your transfer case, differential component, or transmission has experienced submersion in water or another foreign fluid, your gear oil should be replaced. Other conditions that require a gear oil change can develop under unusual circumstances.

The transmission was developed through a joint deal by General motors and Chrysler. However, this number is a maximum, and most manufacturers recommend changing your gear oil between 50,000 and 60,000 miles. The NV3500 stands for New Venture Gear 3500. In normal driving conditions, most cars can travel up to 80,000 miles before needing a gear oil change. If you regularly tow, drive in low traction conditions, or drive in mountainous regions, you will likely need to change your gear oil every 30,000 miles, or potentially even less. High stress driving will repeatedly increase the temperature of your transmission, eventually breaking down the stability of the gear oil in your car. The NV3500 was used by Dodge in 1994 to 2004. Getting the correct parts takes some work, there are three separate designs known as the Getrag HM290, the 5LM60 Muncie and the New Venture NV3500. The NV3500 is an aluminum case with integrated bell-housing, and a waffle pattern on the case. This example also applies to transfer cases and differentials. The NV3500 is a five speed, RWD or 4WD transmission. By opting for a transmission remanufacture, the customer is assured the transmission is being repaired by absolute experts on that particular transmission and has been remanufactured to incorporate all design and component upgrades that weren’t available when it was originally manufactured. In this scenario, the transmission has been “rebuilt” – repairs have been made, bad parts have been replaced, but the unit has received few, if any, upgraded components.Ī remanufactured transmission is basically the same as a rebuilt transmission, but the work has been performed by a dedicated transmission repair facility or shipped to the original transmission manufacturing facility. Once completed, the transmission is reinstalled and the vehicle is ready to hit the road. Parts deemed worn or damaged are replaced with new or “used” components, and the unit is then reassembled.

The mechanic inspects and cleans each and every transmission component and determines which parts are in working order, excessively worn, or just plain damaged beyond repair. There, the transmission is removed and worked on by a mechanic who completely disassembles the transmission all the way down to its component nuts and bolts. In most cases, a vehicle experiencing transmission problems is brought to an automotive repair shop. First, let’s consider a rebuilt transmission.

Gm nv3500 transmission