|
products
JB
Conversions Dana 300 32 Spline Rear Output Shaft
Some information by
JB Conversions
The original Dana 300 rear
output shaft is not as strong as it could be. 4-to-1 gears,
larger tires, and V8 engines have been responsible for many
OEM shaft failures on stock Dana 300's. Other aftermarket
companies have put together shaft kits to address this
problem however we feel that our kit is beyond compare. This
kit is offered by our company as a compliment to the full
line of JB Conversions, Inc. products for the Dana 300.
|
Stock shaft vs. JB
Conversions shaft |
Stock housing vs. JB
Conversions housing |
The Dana 300 Big
Shaft kit contains several features not available from kits
made by competitors. The housing is heat treated aluminum
with a very thick top section. A 6-bolt mounting flange with
two 3/8" dowel pin holes has been integrated into each
aluminum housing. The top section of the housing has been
especially designed to accommodate a parking brake with this
6-bolt flange face. If a parking brake is not used, a billet
cap and seal is supplied with the kit.
Another feature
which sets this kit apart from the rest is the the ability
to adjust shaft end play or bearing preload. A shim pack is
included in each kit which allows perfect adjustment of end
play. An extra shim pack is supplied in the event of a
future rebuild or bearing change.
NOTE:
Other kits on the market are furnished with pre-machined
thrust washers to achieve correct end play. We don't think
this is the best design. The competitors thrust washers are
machined to provide specific shaft end play based on the
specific bearing installed in their kit as it leaves their
facility. With this type of thrust washer, there is no way
to allow for slight size differences in bearing size in the
event that your Dana 300 is ever freshened up with new
bearings. We have seen slight variations between bearings of
different brands and also within the same manufacturer.
This kit
comes with a 1310 CV yoke (reference Spicer Part No.
2-4-5341) however 1 ton yoke sizes are compatible. We do
not supply larger yokes, however, the following part
numbers are compatible with this kit:
-
1310 non-CV Yoke: Spicer 2-4-4191, National Seal
number 472015
-
1330 CV Yoke: Spicer 2-4-5441, National Seal number
473239
-
1330 non-CV Yoke: Spicer 2-4-5521, National Seal
number 472015
-
1350 non-CV Yoke: Spicer 3-4-6211, Natioanl Seal
number 472015
-
1410 non-CV Yoke: Spicer 3-4-10951-1, National Seal
number 472015
kit contents
Kit Components
Aluminum bearing housing
32 spline rear output shaft
Aluminum seal retainer
National oil seal #473239
(6) Allen cap screws 5/16" x .75"
(5) Allen cap screws 3/8" x 1.25"
CV yoke # 2-4-5341
7/8" x 20 Lock nut - Chrysler #4167924
Rubber star washer seal - Chrysler #4210973
Speedometer gear - Chrysler #4338996
Snap ring - Chrysler #4338997
Large Spacer ring
Small Spacer ring
Needle bearing
Tapered roller bearing #30207 (cup & cone)
Tapered roller bearing #26822, #26885 (cup & cone)
Shim set
Vent fitting 1/8" NPT x 5/16"
Contact
JB Conversions
for more information
|
