American Expedition Vehicles Tummy Tucker – TJ Wrangler NON-Rubicon - Manual (Page 3)

Installation Instructions:Tummy Tucker™ – TJ Wrangler NON-Rubicon
Nth30115 v4.doc page 3 of 11 Download @ www.nthdegreemobility.com
Note for 3-speed autos (A999) with a 2-speed Atlas t-case, you will use the forward slotted hole, all
other applications will use the rearward slot that is directly across from the passenger-side slot.
NOTE: If you are installing this TT with either an Nth° long-arm system or you have a motor mount
lift, you will need to add ‘shim washers’ (large diameter washers supplied with this kit) between the top
of the isolators and the bracket. For Nth° long-arm add two washers per side; for motor lifts add at
least 3 per side – if you have both you will need 4-5 washers per side. This is necessary to keep the
t-case from contacting the TT under the front-output area.
Low style
’87-’02 MY High style
’03-’06 MY
Figure 2 Figure 3
brackets show the bottom side with front of vehicle at top of picture; exhaust brackets shown from ‘trans
side’ of bracket with front of vehicle towards left side of picture.)
For pre-assembly, either extension can
be bolted to either trans mount in two
positions depending on your application:
inboard (closer to trans) for use with Nth°
long-arm suspensions, and outboard for
‘stock position’ to be used with Nth° short-
arm or any other suspension systems. Pre-
assemble the exhaust extension to the main
bracket with one 3/8” x 1” bolt and nut
through the appropriate non-slotted hole in
the main bracket.
The isolators are mounted differently for
the left (driver’s) and right sides. For the
driver’s side, place a lock washer and then a flat washer on the remaining 3/8”x1” bolt, then pass the bolt
from the top side of the slotted hole in the bracket and thread it into the hole on the top (rubber side) of
the isolator.
For the passenger side, you must first drill out the threads in the center hole of the isolator to 3/8”, then
place the provided socket head bolt up through the drilled-out hole from the bottom of the isolator and
press the head of the bolt into the hex-shaped void in the rubber. Position the isolator under the
passenger-side slot and add the ‘flag nut’ to the bolt on the top side.
Figure 2 shows an auto bracket with a high-type exhaust extension in the Nth° long-arm (inboard
position) – Figure 3 shows a manual bracket with the low-type exhaust extension in the ‘standard’
position – other combinations will look similar. Orient each isolator to roughly match the orientation of
the holes on the TT skid and leave the bolts only finger tight for now as shown in figure 4.