Advance Adapters 50-0401 User Manual

ADVANCE ADAPTERS, INC. P/N: 50-0401

P.O. Box 247, 4320 Aerotech Center Way New Item: (01/99)
Paso Robles, CA 93447 PAGE: 1 OF 3
Telephone: [phone] Fax: [phone] Page Rev. Date: 09-09-09

GM 2WD 32T 4L80 AUTOMATIC TO

JEEP DANA 300 TRANSFER CASE

KIT CONSISTS OF:
No. Qty. Part No. Description

1. 1 51-0401 ADAPTER HOUSING (51-6400 casting with 4.80" Index hub)

2. 1 52-0208 NEW DANA 300 32T SPUD SHAFT

3. 1 716308 SEALED BEARING 716317

4. 1 716510 GASKET (GM #862-4709)

5. 1 716517 GASKET

6. 1 716749 NATIONAL SEAL (#471870)

7. 5 723701 HEX NUT 3/8"-16

8. 6 723704 3/8" LOCK WASHERS

9. 1 723711 STUD BOLT 3/8"-16 x 2" LG

10. 6 720028 10-1.5 x 35MM SHCS (ADAPTER TO 4L80E)

11. 6 724324 LOCK WASHER FOR 720028 BOLTS

11. 1 JP001 JEEP INSTRUCTION MANUAL

This kit is only compatible with the 4L80 output shaft listed on the last page.

The 4L80E transmission is normally equipped with an internal reluctor ring on both the transmission input shaft and
output shaft. The computer takes both of these readings for the proper shifting and operation of this transmission.
We have always ignored the reluctor ring requirement for this transmission since it is internally regulated. We
have now learned that the rear reluctor ring is not always installed into the transmission. The basic rule of thumb
is 4WD transmissions up to 1996 should have a rear reluctor ring in the main transmission case. All 2WD
transmissions should have the rear reluctor in the main transmission case. The 1997 & newer 4WD 4L80E
transmissions had a sensor provision; however, the reluctor ring in the transmission was left out. This adapter kit
does not offer a reluctor ring option in our adapter housing. You will be required to use the stock transmissions
rear reluctor ring. Please verify that your transmission is equipped with this reluctor ring.

Note: The information on years and models of the 4L80E transmission mentioned in the above section was

obtained from various sources. You should always verify what your transmission is equipped with before begin­ning a conversion with the 4L80E transmission.

SPECIAL NOTE: The components packaged in this kit have been assembled and machined for specific types of conversions. Modifications to any of the
components will void any possible warranty or return privileges. If you do not fully understand the modifications or changes that will be required to complete
your conversion, we strongly recommend that you contact our sales department for more information. This Instruction Sheet is only to be used for the assembly
of Advance Adapter components. We recommend that a service manual pertaining to your vehicle be obtained for specific torque vales, wiring diagrams and
other related equipment. These manuals are normally available at automotive dealerships and parts stores.

ADVANCE ADAPTERS, INC. P/N: 50-0401

P. O. Box 247, 4320 Aerotech Center Way New Item: (01/99)
Paso Robles, CA 93447 PAGE: 2 OF 3
Telephone: [phone] Fax: [phone] Page Rev. Date: 01-14-99

GM 2WD 32T 4L80 AUTOMATIC TO

JEEP DANA 300 TRANSFER CASE

GM 4L80 4 SPEED AUTOMATIC

The GM 4L80 has a case length of 26", 17 bolts for holding the oil pan in position. The rear side of the transmission case
will have a hex shaped bolt pattern that uses 6 bolts. There are several various lengths of output shafts that the transmission
has been equipped with. You will need the 6-1/2" slip yoke output shaft GM# 8661596 (1991 to 1996), or GM# 24204289
(1997-1998). The speedometer pickup is normally located in the tailhousing, but when adapting it to the transfer case, the
location will change to the backside of the transfer case. The rear transmission support will now be located on the new
adapter housing or, in some cases, on the transfer case.

When installing the new transfer case adapter, make sure that the new input gear and the output shaft do not bottom out.
We have found on occasion that the output shaft and transfer case input sleeve may bottom out if the shaft was not cut
to the proper length. DO NO FORCE THE NEW TAILHOUSING ONTO THE TRANSMISSION. If assistance
is needed, please feel free to call the number listed above.

When assembling the adapter housing to the transmission case, we have provided you with a new gasket to prevent fluid
leakage. This gasket is a stock GM item that is used on all 4L80 installations. The seal in the Dana 300 bearing retainer
will prevent fluid from mixing between the transmission and transfer case. A new seal has been provide and should be
installed with the open side towards the automatic transmission. We have also included a new sealed bearing that will
replace the original Dana 300 bearing. This new sealed bearing will give added protection.

All installations will require the use of a transmission cooler. The cooler can be either installed in the radiator or a remote
location is acceptable. The transmission shift control can either be a Hurst floor mounted type shifter or sometimes the
existing column shift can be modified on certain applications.

SPECIAL NOTE: The components packaged in this kit have been assembled and machined for specific types of conversions. Modifications to any of the
components will void any possible warranty or return privileges. If you do not fully understand the modifications or changes that will be required to complete
your conversion, we strongly recommend that you contact our sales department for more information. This Instruction Sheet is only to be used for the assembly
of Advance Adapter components. We recommend that a service manual pertaining to your vehicle be obtained for specific torque vales, wiring diagrams and
other related equipment. These manuals are normally available at automotive dealerships and parts stores.