Using the Klune-V universal...
Using the Klune-V universal footing mount bolted between the reduction housing and the transfer case, Chris welded an extension onto the crossmember and then secured it to the footing mount using a Scout transmission mount.
To carry out the Klune-V and NP231 conversion, we sought out the assistance of Chris Johnson at Rock-Tech Offroad in La Habra, California. Chris was primarily a Scout guy when we first met him, but he's been letting Jeeps in the door for the last few years and has had pretty good success at it. The entire conversion was completed in a little over a day's time, and we've been pleased with the results. On the road, there's no additional gear noise since the Klune-V only turns when it's engaged, but on the trail we're reaching new heights with ultra-low gearing for the toughest off-road driving situations.
NumbersYou can calculate the overall reduction provided by the Klune-V in the same manner in which you calculate your crawl ratio - by multiplying your ratios. In our case, we'll multiply the Klune ratio (4) by the T-case (2.72) by the trans First gear ratio (6; note that ratio is actually 3.0:1, but the torque converter in auto transmissions has built-in gearing that can multiply ratios by 1.5 to 2 times, e.g. 3x2=6) by the axle gear ratio (3.73). With the help of a calculator we came up with a 243:1 overall reduction.
Klune-V David: 4:1NP231J transfer case Low: 2.72:145RFE First gear: 3.0:1 (x2)Axle gear ratio: 3.73
Formula:Klune-V ratio x NP231 ratio x trans First gear ratio x axle gear ratio = Overall reduction
Or:4 x 2.72 x 6 x 3.73 = 243
Overall reduction is 243:1
 With the Klune-V and NP231...  With the Klune-V and NP231 well secured in place, Chris took measurements for the new driveshafts. |  We wanted to be rid of the...  We wanted to be rid of the factory yoke on the front Dana 30 differential (right) so we could install a 1310 yoke and new driveshaft, but the stock pinion seal (which was already leaking) only allows the stock-style yoke to be used. A problem arose when we realized that no one offered such a seal like the one we needed; however, Chris again remedied the situation by having an aluminum seal adapter (left) made that would fit a generic seal and allow fitment of the 1310 yoke. |  Here the new 1310 yoke and...  Here the new 1310 yoke and seal and adapter are shown installed on the Dana 30 front differential. |
 J.E. Reel crafted this CV...  J.E. Reel crafted this CV driveshaft for the front of the Liberty. The new front driveshaft is a bit longer than the stock unit since the Klune-V situates the transfer case front output farther rearward. |  The new rear driveshaft is...  The new rear driveshaft is about 1/2 inch longer than the stock 'shaft. It uses a 1310 U-joint at the T-case and a 1330 on the rear. |  With both the front and rear...  With both the front and rear driveshafts secured in place, the Klune-equipped Liberty is ready to 'crawl. We may create an additional transfer case crossmember if the unit requires further support. |