Jeep Grand Cherokee Transfer Case Drive Chain 68087900AA

This is a replacement transfer case drive chain for the 2011-2020 Jeep Grand Cherokee and Dodge Durango with four-wheel or all-wheel drive. It replaces Mopar 68087900AA. Listed fitment is the Grand Cherokee 3.6L and 5.7L (2011-2020), 3.0L diesel (2014-2020), 6.4L SRT (2012-2020) and 6.2L Trackhawk (2018-2020), and the Durango 3.6L and 5.7L (2011-2020) and 6.4L SRT (2018-2020). The chain comes by itself, with no sprockets, bearings, seals or instructions.

The chain carries power from the rear output shaft to the front output sprocket. As it stretches, it starts to slap the inside of the case. The usual symptoms are a clunk or bang when you pull away or change direction, a rattle or slapping noise from the transfer case that follows road speed, and in bad cases a chain that jumps teeth or wears a hole through the case. Check the fluid first. Dark fluid full of fine metal points to chain and sprocket wear.

This is a transfer case teardown job. Drain the fluid, remove the front and rear driveshafts, unplug the case, support it on a jack and pull it off the transmission. On the bench, separate the case halves and lift out the front output shaft, sprocket and chain together. Look over both sprockets for hooked or chipped teeth and replace the bearings and output seals while the case is apart. Reassemble with fresh sealant on the case halves, refill with the fluid Mopar specifies for your transfer case, and check your case tag and part number before ordering.