The only way to put in a new rear main seal is to take out the transmission (727 Torque Flight) and when either the front or rear main seal goes bad that usually means it's time for a transmission rebuild or replace.
Dana 44 front and rear
Yes you can because we have an 87 with a factory manual window.
Dana 44
under the left rear seat
The 2008 Jeep Grand-Cherokee has 58.4 in. of rear shoulder room.
The 2014 Jeep Grand-Cherokee has 38.6 in. of rear leg room.
The 2010 Jeep Grand-Cherokee has 58.4 in. of rear shoulder room.
The 2010 Jeep Grand-Cherokee has 35.5 in. of rear leg room.
The 2004 Jeep Grand-Cherokee has 57.9 in. of rear shoulder room.
The 2014 Jeep Grand-Cherokee has 56.2 in. of rear hip room.
The 2011 Jeep Grand-Cherokee has 38.6 in. of rear leg room.
The 2001 Jeep Grand-Cherokee has 57.8 in. of rear shoulder room.