Synergy 5017 - 2012+ Jeep JK Exhaust Spacer Kit - Manual (Page 8)

10) Next tighten the exhaust clamp we loosened in step 2. Again, use a 15mm
wrench and retighten until clamp is snug.
Now is also a good time to reinstall the T-case skid removed in
step 1. Again, use an 18mm socket and torque bolts to 48 ft-lbs
11) Double check clearances around the transmission cross member, and rear cross
member where the exhaust kicks up to allow for rear axle clearance. There
should be adequate clearance in these areas to prevent rattling or added vibration.