As discussed in our popular Clutches, Linkages & Bellhousings article, different pressure plates have different ratios, as do the various linkage systems that are native to Jeeps. The following clutch release arms are available to help you get the right amount of travel from your GM engine's clutch in your Jeep.
This release arm is the best choice of release arm for a GM engine swap in 1945-1971 CJ and other models. It's proper length gives the correct release action for GM clutches, and is compatible with the early bellcrank linkage systems found in these earlier Jeeps.
This Novak manufactured part is far superior to the poorly made Buick V6 replacement arms on the market, whose retention springs fail. This kit ships with the our #K-15155 studded pivot ball, shown.
This release arm is the best choice of release arm for either a GM engine swap in 1972-1986 CJ models, and some FSJ Jeeps - with the factory mechanical release system (not hydraulic). It's proper length gives the correct release action for GM clutches and is compatible with later rod & bellcrank linkage systems found in these Jeeps.
This release arm is primarily for GM hydraulic release applications. It is the proper length to give the correct release action with hydraulic linkage systems found in Jeeps YJ, XJ and TJ Jeeps when performing a GM engine and bellhousing conversion, or on some earlier Jeeps that may have a custom made hydraulic system. A modified version of this arm is used in our GM Hydraulic Slave kits #HCRC & #HCRB.
Installation varies with the application. The arms will install as stock arms do and the linkage will need to be modified to provide correct movement at the release bearing.
We strongly recommend that the installer read our Guide to Clutches, Linkages & Bellhousings, to best understand the above arms and the clutch system, generally. Throws and clearances are discussed there
and adherence to those methods will yield a successful installation.