Specifications

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1980-86 jeeps - dana 300 transfer case
HEAVY DUTY DANA 300 OUTPUT SHAFT:
About the only weakness we’ve seen on the Dana 300 is the output shaft. The stock Dana 300 output shaft is a 1-1/8” diameter,
26 spline. We now offer a new, larger 1-3/8” diameter 32 spline output shaft for this transfer case. The Dana 300 has two different
stock tailhousing lengths. We offer kits to fit both lengths of the Dana 300 tailhousings.
P/N 50-3032 - Heavy duty 32 spline Dana 300 output shaft with 1310 non-CV yoke.
P/N 50-3032A -Heavy duty 32 spline Dana 300 output shaft without yoke. (see Atlas t/c for yoke option)
P/N 50-3033 - Heavy duty 32 spline Dana 300 output shaft with 1310 CV yoke.
P/N 50-3034 - Heavy duty 32 spline Dana 300 short output shaft w/ 1310 non-CV yoke.
P/N 50-3034A -Heavy duty 32 spline Dana 300 short output shaft kit without yoke. (see Atlas t/c for yoke option)
Kits come complete with a new tailhousing, output shaft, tapper roller bearings, yoke, and speedometer drive. If you require strength
and reliability, the Advance Adapters Dana 300 output shaft kit is a must have.
To install the H.D. output shaft into the Dana 300 transfer case, the transfer case must be removed from
the vehicle. Once the transfer case is out, the front retainer, the stock yoke, and the access cover must
be removed. Next, the stock tailhousing gets removed and the tapered roller bearing must be pulled
off the output shaft. With these items taken off, the stock output shaft will exit out of the front of the transfer
case. The new H.D. output shaft kit comes loosely assembled into the new tailhousing. The new
tailhousing and shaft have had the proper end play set with shims on the output shaft. The shim set
should not be changed or modified. The new kit gets installed exactly the same as the old, small diameter
output shaft that was removed. This is a short description of the install procedures. A complete set of
instructions is included with our H.D. output shaft kits.
Our kits are 1/2” longer than the stock Dana 300 tailhousing, and 1-1/2” longer than the short version
Dana 300 tailhousing. The 3.5” short version tailhousing will require driveshaft modifications since
our kit is 1.5” longer than stock.
Note: When replacing the short version Dana 300 tailhousing with our new tailhousing, you will gain
speedometer calibration options.
TRANSFER CASE SHIFTERS:
The Dana 300 shifters are always supported off the front of the stock transfer case. On some
of the truck 4 speed and NV4500 adapters, the shifter support and pivot shaft may need to be
modified to fit to these transmissions. Most applications will not require any modifications.
Another option for the Dana 300 transfer case is a twin stick shifter. Our twin stick application
requires the installation of two new shift rails. This kit is a securely mounted assembly off of
the stock aluminum shifter housing. The new shifter rod allows a heim joint linkage for a
smooth, positive shifter motion.
P/N 403300 - Deluxe Twin Stick kit (with new shift rails included)
(If using this kit with a 4.1:1 gear set, the shift rails do require modifications)
P/N 403330 - Aluminum Knobs for Twin Stick kit
The new deluxe twin stick kit does require the installation
of new shift rails into your transfer case. This kit allows the
Dana 300 to be shifted to the following configurations:
2WD High, 4WD High, 4WD Low, Rear Low, and Front
Low. This is a universal-type kit that may require the
handles to be bent for specific applications.
P/N 400300R - Dana 300 seal and bearing rebuild kit