Specifications

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clutch linkage (1941-79)
GM TH350, TH400 & 700R: This adapter kit was designed to allow the use of a GM TH350, TH400 or 700R transmission
to the stock AMC straight 6 cylinder & V8s. This 5/8” thick steel plate allows you to couple to any one of these transmissions, utilizing
a modified flexplate (listed below), and retain the stock GM torque converter. The kit comes with the necessary hardware, crank
bushing, and flexplate spacers. Flexplates are sold separately. For the necessary transfer case adapter for your application, see
the Transfer Case Selection Chart. Each transfer case adapter will also require a crossmember support.
P/N 716138 - AMC engines to GM automatic
One of the following modified flexplates is necessary to complete this conversion:
P/N 716138-A AMC flexplate 304 & 360 (1972-87)
P/N 716138-D AMC flexplate 401 (1972-76)
P/N 716138-E AMC flexplate 258 (1972-87)
When installing an automatic into a Jeep, some additional parts will need to be considered. A transmission shifter will be required
and most applications need a flexible dipstick. We also carry a 52” long 700R TV cable under P/N 716138-KD and for the TH350
transmissions a 52” long kick down cable under P/N 716138-KD1
CLUTCH LINKAGE
(Manual Transmissions Only):
Jeep has used both hydraulic and mechanical clutch linkages over the years. When doing an engine conversion, it is not uncommon
to have clutch linkage changes. Many of these stock linkages can be retained with only a few modifications. However, if you would
like to improve you clutch linkage, we offer many upgrades from these stock linkages.
Jeeps 1941-1971 - These Jeeps use a torque tube that pivots off the stock transfer case. The clutch pedal & bellhousing arm
use rods that connected to this torque tube. The design was more than adequate for the small 4 cylinder Jeep vehicles. On V6 &
V8 conversions that are equipped with heavier clutches, a greater mechanical advantage is required. We offer a new assembly that
removes the torque tube & rods and replaces them with a sprocket and chain. This controller utilizes the stock pedal and clutch
arm. It can be easily installed and offers a great mechanical advantage on most vehicle whether stock or converted. P/N 716640.
This kit will not work on stock 4 cylinder Jeep bellhousings.
If the original linkage is going to be retained on a new engine conversion, the only modifications will be to lengthen or shorten the
corresponding linkage rods. If the transfer case is going to be offset towards the driver's side, the torque tube will also need to be
modified accordingly. The torque tube mounting on the inside of the frame rail can be moved to match the new transfer case location
by simply drilling two new mounting holes on the frame rail. If additional leverage is required, the stock Jeep torque tube can be
modified by lengthening the control tabs. These control tabs generate the mechanical leverage between the clutch pedal and clutch
release arm. If these tabs are lengthened for a new pivot location, then the mechanical advantage will become greater.
Jeeps 1970-1972 (Cable linkage) - This linkage was only used by Jeep for a short time. With the introduction of the 304 V8 engine,
Jeep changed the clutch control linkage to a cable-operated system. The cable came directly from
underneath the dash, through the floorboard and wrapped around to the clutch release lever. This
linkage proved to be very inadequate. We’ve never manufactured an upgrade linkage kit to replace
this type of linkage, but it can be retained when doing a conversion. You must make sure that the
radius in the bends of the cable are kept as large as possible. The large bends will provide for
a smoother clutch control.
Jeeps 1941-1972 (Hydraulic linkage) - Although these year Jeeps never came with this type of
linkage, we have designed a new dual pedal and master cylinder assembly to upgrade your vehicle to a hydraulic linkage. These
components cannot be used on vehicles with disc brakes.
P/N 716117 - Dual Swing Pedals P/N 716116 - Slave Cylinder Kit with steel braided hose (shown left)
P/N 716118 - Dual Master Cylinder P/N 716287 - Slave Cylinder Bracket (GM block only)
Jeeps 1972-1986 (Mechanical) - These Jeeps use the same type of clutch torque tube
as the earlier models, except the torque tube pivots off the bellhousing instead of the
transfer case. This design consisted of a long rod that extended from the pedal
mechanism underneath the dash, through the firewall and connected directly to a clutch
torque tube. This linkage uses a ball design pivot bracket that bolts to the stock
bellhousing. The clutch torque tube was supported between a pivot point on the bellhousing and a bracket on the firewall.
This assembly can be retained on most conversions with very little modifications.