On a CJ, there is not sufficient clearance for the drive shaft with
a stock suspension, but with a three to four inch lift and a dropped
bump stop, the drive shaft will not hit the pan. The picture to the
right shows the Dana 300 and 727 combination with a 6-8 degree angle
on the drive shaft. This angle on the drive shaft gives keeps it clear
of the pan.
Some people have reported using stock drive shafts with the TF727
swap. Mark Timon says with his 360 and TF727 swap, his rear drive
shaft is 20.75" and his front drive shaft is 32.75". These are
respectable lengths for a CJ-7 with an automatic.
A TF727 swap with a New Process transfer case is less of an issue
since all New Process transfer cases used in Jeeps are drivers drop,
so the clocking would be the same. Some TF727s are used with the NP208
which is a heavy duty transfer case that has a regular yoke output. If
the 727 was going to be swapped into a YJ, it might be worth using the
NP208 from the donor, since it does not have the slip yoke.
Probably the hardest part of doing a TF727 swap is getting the
correct kick down linkage. Most full size Jeeps used the AMC 360
during the 80s and early 90s and most CJs and YJs used the AMC 258.
The linkage is different and the proper linkage and proper adjustment
of the linkage is essential to transmission life. If an engine swap is
also planned to a 360 or 401, this will not be an issue.
A solution to the kickdown problem is swap in a kickdown cable for
the TF727 which is available from Lokar Performance. Racing and hot
rod suppliers list this cable in their catalogs. Tom Anhalt reports
using it successfully in his '81 full size Cherokee with
258/TF727/NP208 combination. The cable was needed after swapping in a
Mopar MPI kit on the 258.
The TF727 has been used in Jeep, IH, and Dodge trucks. The
following articles cover some things to look for to find the TF727 you
Jeep TF727: Jeep used the 727 from 1980 through 1991 in full size
IH TF727: IH used the 727 in Scouts and trucks during the 70s and
Dodge TF727: Dodge used the TF727 in the 70s and 80s.