Just a little info...
Up until late 94, the Fleetwoods were rated at 5000 lbs capacity with the towing package. It included 3.42's in the standard 8-1/2" carrier. It also included all the normal performance stuff that the SS package got... stuff like heavy duty cooling (V03), Engine oil cooler (KC4), 140 amp alternator (KG9), etc.
Later in 94, they upgraded the towing capacity to 7000 lbs by adding the 9-1/2" rear end (still 3.42) which had some massive brakes (drum). They also added the mechanical fan up front. Look for a V4P code to indicate the trailer package or the V4U to indicate the coachbuilder package which would have the same rear end.
The funny thing is that the only thing that you
DON'T get with the trailer towing package is a
Trailer Hitch 
Go figure!