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View Full Version : How To: Link a JK 4dr on a CrossCanyon Kit



generis
02-20-2011, 11:04 AM
Well, we all know that the JK 4door body from NewBright is a popular unit for building. That said, it's so popular that I thought I should answer the dozens of questions I get about this setup (http://gcmracing.ca/viewitem.php?productid=153).
First things first, if you have a stock JK interior in there, you have to chop off the first section of the rear shock tower to make the frame fit way down inside the body. If you do this cut, you won't have to make any cuts in the stock interior at all. Just like this: (shown with HPI blitz wheel/tire and Proline 90mm shock)

http://gcmracing.ca/ccdata/images/full4_51_153.jpg

Rear body mounts: I cheated completely on my last build and just mounted a set of RK bumper mounts on the frame with the mount angled up. This makes the perfect spacing on the rear truck floor of the JK and you can just stick a couple of velcro tabs on these mounts, and then on the trunk floor and have an instant body mount that's a perfect lift and fit for everything. With a ~4.25 inch tall tire (http://www.greathobbies.com/productinfo/?prod_id=PRO114714), this is a perfect body spacing for the shocks listed at the bottom of the message. Stock looking and good lift for offroad.

https://lh4.googleusercontent.com/_3DO-r-ISG6o/TWFhaH7S8SI/AAAAAAAAASc/JZq-W_Pw_R4/s720/DSCF0467.JPG

Front body mounts: The easiest way to mount a JK up front is with a metal or Plastic or clear lexan hoop, and a velcro tab on top. Simple, effective, and easy to match your body mounting position. The hoop will be an upside-down U over the front shock towers. Nothing more than that is needed.

Mounting your links: If you are using the GCM Truss or 3 link (http://gcmracing.ca/viewitem.php?productid=37), or anything else, really.. then mount the lower links inside the Delrin center skidplate (http://gcmracing.ca/viewitem.php?productid=52), and the upper inside links to the holes right beside the skidplate, (front and rear the same) as shown in the pictures below. (shown with GCM 4Link truss (http://gcmracing.ca/viewitem.php?productid=37) on the rear axle)

The Tech Specs:
Setup spec for JK body using a CrossCanyon Combo Kit (http://gcmracing.ca/viewitem.php?productid=48) frame:
Information about parts used:
A. Revo rod end #5347, center to tube edge .675, 17.14mm
B. c2c center to center link mounting hole dimension
C. 5/8 long 8-32 setscrews with .149 ID .250 OD aluminum tube
D. Using GCM 4link (http://gcmracing.ca/viewitem.php?productid=37) difference in upper and lower is (lower - .175 = upper)

If you are using any thing other than revo link ends, then ONLY READ the c2c bolt center measurements.

1. Front Links
a. Lower link tube 4.10, 104.1mm, total c2c 5.45, 138.4mm
b1. Upper GCM 4link (http://gcmracing.ca/viewitem.php?productid=37) tube 3.925, 99.70mm, total c2c 5.275, 94.36mm
b2. Upper GCM 3link (http://gcmracing.ca/viewitem.php?productid=37) 3.575, 90.8mm, total c2c 4.925, 125.1mm
c. Upper GCM Panhard (http://gcmracing.ca/viewitem.php?productid=68) tube 2.365, 66.93mm, total c2c 3.715, 94.36mm, bent 35deg at .875 from frame end of tube, Direct fit Traxxas 5538 or 5539

Pictures of this setup:

https://lh6.googleusercontent.com/-or4aHZW-imY/TWFhUFnQXdI/AAAAAAAAASE/jvH4MphJ9gg/s800/DSCF0459.JPG
https://lh6.googleusercontent.com/-CBIBBW9ogbw/TWFhes9acxI/AAAAAAAAASw/ykIV9Xnffio/s800/DSCF0474.JPG
https://lh6.googleusercontent.com/-yE5rZQyJctA/TWFhfUvTwmI/AAAAAAAAAS0/gdj_dnDTkbI/s800/DSCF0475.JPG
https://lh3.googleusercontent.com/-08bdW6VIoao/TWFhhCjFtWI/AAAAAAAAAS8/Bc5q0IyQ-Fo/s800/DSCF0477.JPG


2. Rear Links
a. Lower link tube 3.750, 95.25mm, total c2c 5.10, 129.55mm
b. Upper GCM 4link (http://gcmracing.ca/viewitem.php?productid=37) tube 3.575, 90.80mm, total c2c 4.925, 125.1mm

Shocks:
1. Front
a. Proline Powerstroke Shock #6060-00, silver spring, 60wt oil, mounted inverted
b. Losi MRC shock, Hot Racing #36801, blue spring, 60wt oil, upper link split to 2 parts, trimmed pivot back, no bottom ball, make new upper hole to mount shock lower on frame (they are short)
c. Traxxas Slash shock #2662 with internal spring TCS #16647 internal spring, 35wt oil, mounted inverted (droop for small tire, sprung for over 4.3 inch diameter)
2. Rear
a. Proline Powerstroke Shock #6060-00, silver spring, 60wt oil, mounted inverted
b. Losi MRC shock, Hot Racing #36801, blue spring, 60wt oil, upper link split to 2 parts, trimmed pivot back, no bottom ball
c. Traxxas Slash shock #2662 with internal spring TCS #16647 internal spring trimmed and split, 35wt oil, mounted inverted (droop for small tire, sprung for over 4.3 inch diameter)

The truck shown below is a 3 link (http://gcmracing.ca/viewitem.php?productid=37) panhard front setup (http://gcmracing.ca/viewitem.php?productid=68) with all 4 MRC shocks as listed, and using the full Tech Setup shown above. This is the ride height and look of the JK body literally dropped onto this frame with this setup. Stock body, dropped right on. (shown with HPI Blitz rims in the rear and SwitchBack Double-8 rims (http://gcmracing.ca/viewitem.php?productid=16) up front)

https://lh5.googleusercontent.com/_3DO-r-ISG6o/TWFhdMx7MxI/AAAAAAAAASo/7W2kb_l8aZI/s720/DSCF0472.JPG

jeenyus
02-20-2011, 12:32 PM
Right on!, I may need to pick up another JK and give this a go.. thanks !!

generis
01-26-2012, 05:26 PM
Hi guys,
Just bumping this up on the list again. I get at least one call every week about how to link up a CC frame and the panhard kit with all the front motor mounts and everything.
We did this full setup on our >>LINK 'In Between' stocker Jeep build <<LINK (http://www.scalebuildersguild.com/forum/showthread.php?t=14827) shown at the link. This thing has super control on the rocks, and has instant and rock solid steering thanks to the panhard and frame mounted servo.
So far I've seen this setup linked from 11 inch up to 14 inch wheel bases! Great builds, everyone!

Keddy
01-27-2012, 07:08 AM
Also, its a crappy picture, but if anyone is looking for any other ideas.

A JK body fits right onto this style set up with out cutting anything away.





http://img.photobucket.com/albums/v113/keddy/IMG_0419.jpg
http://img.photobucket.com/albums/v113/keddy/IMG_0417.jpg
http://img.photobucket.com/albums/v113/keddy/IMG_0409.jpg
http://img.photobucket.com/albums/v113/keddy/IMG_0408.jpg
http://img.photobucket.com/albums/v113/keddy/IMG_0407.jpg
http://img.photobucket.com/albums/v113/keddy/IMG_0406.jpg
http://img.photobucket.com/albums/v113/keddy/IMG_0405.jpg
http://img.photobucket.com/albums/v113/keddy/IMG_0404.jpg
http://img.photobucket.com/albums/v113/keddy/IMG_0403.jpg