Specifications
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JEEP AX15 replacing the AX5: Tired of replacing your worn out AX5 transmission with another AX5? We have a solution to
your dilemma. The AX15 transmission has long been touted as a good, reliable 5 speed transmission. We now offer a kit that will
allow you the opportunity to upgrade rather than replace. This kit is designed to fit the 1995 & newer AX15 transmission. Earlier
model transmissions can be used, but a stock pilot bushing with a .590" I.D. is required. This kit allows you to replace the light duty
AX5 transmission with the stronger AX15 transmission. The 4 cylinder Jeeps are a popular vehicle for installing lift kits and using
larger tires. Along with larger tires comes more wear and tear on the stock drivetrain
components.
P/N 712563 - Jeep AX15 replacing Jeep AX5 external slave
P/N 712564 - Jeep AX15 replacing Jeep AX5 internal slave
The AX15 is approximately 2” longer than the AX5, so count on doing driveshaft modifications.
We recommend that the stock flywheel be removed and resurfaced at a machine shop. A
new clutch disc and release bearing has been provided in the kit. A new pressure plate is
also recommended before installing your new transmission. This new pressure plate can
be ordered under P/N CF361914.
Before disposing of the old AX5 transmission, you will need to retain the shifter housing from that
transmission. You will also be using the stock 4 cylinder bellhousing, the stock release arm, and
crossmember mount.
The transfer case must have a new input gear installed to fit to the
AX15 transmission. If retaining the NP231 transfer case, we
highly recommend a fixed yoke kit be installed during this trans-
mission swap because the new transmission is longer. This will
allow for a new, longer rear drive shaft. The Atlas 2 speed or 4 speed
transfer case is also an excellent upgrade for your Jeep, and this would be the perfect time to
do this swap.
When retaining the stock NP231 or NP207 the stock input is a 21 spline. The AX15
transmission has a 23 output shaft. Due to the various options, an input gear must be
purchased separately.
P/N 716054P/N 716054
P/N 716054P/N 716054
P/N 716054 input gear for 1987-1994 NP231 T/Cs
P/N 716095P/N 716095
P/N 716095P/N 716095
P/N 716095 input gear for 1995-2006 NP231 T/Cs
P/N 716096P/N 716096
P/N 716096P/N 716096
P/N 716096 input gear NP207 T/Cs
Because this transmission fits both Wranglers & Cherokees, the transfer case shifter
bracket is also sold separately.
P/N 715545P/N 715545
P/N 715545P/N 715545
P/N 715545 shifter bracket for Jeep YJs
P/N 715542P/N 715542
P/N 715542P/N 715542
P/N 715542 shifter bracket for Jeep TJs
New transmissions can be purchased under
P/N 26-AX15P/N 26-AX15
P/N 26-AX15P/N 26-AX15
P/N 26-AX15
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 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. 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 (needs a modified flexplate from list below)
P/N 716138-1 -1988-2005 AMC 258/4.0L engines to GM automatic uses stock flexplate
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-C AMC flexplate 360 (1988-91)
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. These items can be found on Page 6. We also carry a 52” long 700R T.V. cable under
P/N 716138-KD or a kickdown cable for the TH350 52” long under P/N 716138-KD1.
When using the 716138 adapter kit on a 4.0L Jeep 6 cyl. engine, We offer two options for retaining the flywheel sensor. The
easiest option is kits 716138-M and 716138-N. These kits do require you to modify the GM bellhousing, but the retain the sensor
on the flexplate as it was factory. The “M” kit is for 1991-96 Jeeps and The “N” kits fits 1997-2004 Jeeps. The other option is a
modified harmonic balancer kit listed on the next page.
jeep tranny retrofits (1987 & newer)