Center coil install
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(periodic updates at end of this page)
My friend, Scott, down in Tucson, has been having a major PITA
issue with his rear spring packs. Seems the packs have settled(after only a few months)
....and the rear was starting to look like it was dragging. So up to Chandler Scott
heads for an install of the not so well known ZUK-COIL. There's nothing really tough about
fabbing up a set-up like this. A chop saw, hand-grinder, mig welder, and a drill
will suffice. We used quite a bit of scrap metal laying around (have you priced
We cut this piece of 2x4x.120 steel to 37" and moved a few things out of the
way to fa-naggle it in position.
I made this junky tripod up many moons ago and today it came in very
handy.....much easier working under there with head-room plus some safety.
Different options to truss it....I cut up a chunk of
card-board to make a template.
Scott removes the extra bracketry that was not needed or was to be
I used the chopsaw and the handgrinder and came up with this
truss...Time was spent trimming it to get a decent fit.
Here it is tacked in place.
More weld and some paint. The lower coil dish was pointed at the dish above
near the bed and then welded/bolted in place. This dish unbolts and spacers can
be inserted to create additional lift.
The top dish is welded to the cross-brace. The muffler tabs were
relocated(easy) about an inch downward to allow the tail-pipe to clear the
The other side of the brace cleared the brake valve a-ok.
We chose to simplify things and cut it free.
Emergency brake cable/brackets were easy to re-locate. New metal brake lines
will be re-formed and pass over the top of the truss out of boulder reach in the
We cut 3 inches off of the Rubicon Express Jeep TJ coil......and it still
netted us 3.5" of much needed lift.The truss/coil install took about 8 hours and
was deemed a complete success. Besides having a somewhat stronger axle housing
per the truss, we now have a "support" lift system giving us better payload capabilities,
a softer ride, and leaf-packs that might last close to forever. ZUK
Update: 12-16-2005 So far, no loss of lift in 1.5 years FYI
Update: 1-9-2008 Working perfect so far. :)
Update 1-7-2011 ....still perfect 7 years after install.
UPDATE...... 5-28-2013...... STILL NO SAG AND WORKING GREAT
AS OF LAST RELATIVELY HEAVY LOAD..... sign Scott Rhodes
Update 3-18-2016 ....Coming up on 12 years on the same single coil in the center
.....just got off the phone with Scott and he reports no sag and works beautifully.