Advance Adapters 50-5711 User Manual

ADVANCE ADAPTERS, INC. P/N: 50-5711

P.O. BOX 247, 4320 Aerotech Center Way
Paso Robles, CA 93447 PAGE 1 OF 3
Telephone: [phone] Fax: [phone] Page Rev. Date: 04-16-12

TOYOTA TACOMA TRANSMISSION TO

ATLAS (95-1/2 to 04 4cly Manual & Auto trans.)

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

1. 1 51-5710 3/8" STEEL ADAPTER PLATE

2. 1 52-5711 TOY. 26 SPL. x JEEP 23 SPLINE SPUD SHAFT

3. 1 716178 SPUD SHAFT SPRING

4. 1 716189 SEAL ADAPTER

5. 1 716756 NATIONAL SEAL #474269

6. 8 720066 8mm-1.25-S.H.C.S. x 35mm LONG

7. 6 723722 3/8"-16 H.H.C.S x 1.25" LONG

Notes: This kit is designed to adapt the Atlas transfer case to a Toyota Tacoma transmission. This adapter plate

works with both the 5 speed manual transmission as well as the automatic. The adapter will allow either a right or left
hand front output drop. The left hand drop (driver's side) is the same as stock. The left hand drop transfer case does
require a special longer shift rod to allow clearance on the stock Toyota transmission tailhousing. This shift rod exten­sion is P/N 300379. The right hand transfer case allows for nearly a zero degree rotation and does not have any shift
rod clearance issues. This adapter plate does not work with a Dana 300 transfer case.

Installation: Remove the stock transfer case from the stock tailhousing adapter. The stock tailhousing is retained

along with the stock rubber crossmember support. Once the transfer case is removed, you'll see a seal located in the
stock tailhousing. This seal must be removed and discarded. Some tailhousings also had a bearing which also must
be removed. Install the new oil seal into the large end of the seal adapter. The sealing lip should be facing down. The
small end of the seal adapter has the same O.D. (outside diameter) as the old seal that was just removed from the

stock tailhousing. The seal adapter is a press-t into the stock tail and should now be installed.

Additional items required
le hand transfer cases:

P/N 300379

P/N 300605 Atlas VSS Adapter or
P/N 300613 Atlas speedo cable

adapter
Both speedometer options require

P/N 301506 plus a speedo gear.

Short Atlas input

Make sure the dowel pins are in the stock
tailhousing.

The kit comes with a new spud shaft which ts over the stock Toyota transmission 26 spline output shaft. This spud
shaft has a Jeep 23 male spline on the opposite side which ts into a standard 23 spline Atlas case. When installing

the spud shaft into the Toyota transmission, the spud shaft does not seal onto the new seal just previously installed.
The seal contacts seal off of the Atlas input shaft.

The adapter plate should now be installed onto the Atlas transfer case. The adapter plate indexes off of the Atlas front

SPECIAL NOTE: e components packaged in this kit have been assembled and machined for specic type of conversions. Modications to any of the compo­nents will void any possible warranty or return privileges. If you do not fully understand modications or changed that will be required to complete your conversion,
we strongly recommend that you contact our sales department for more information. is 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 specic torque values, wiring diagrams and other related equipment.
ese manual are normally available at automotive dealerships and parts stores.

ADVANCE ADAPTERS, INC. P/N: 50-5710

P.O. BOX 247, 4320 Aerotech Center Way
Paso Robles, CA 93447 PAGE 2 OF 3
Telephone: [phone] Fax: [phone] Page Rev. Date: 04-16-12

TOYOTA TACOMA TRANSMISSION TO

ATLAS (95-1/2 to 04 4cly Manual & Auto trans.)

retainer and is bolted on with the (6) 3/8"-16 hex head bolts. Once the adapter plate is secured and orientated correctly,

you'll now need to couple it onto the back of the stock transmission tailhousing. The stock tailhousing used two dowel
pins to align the stock transfer case to the transmission. These dowel pins must be retained into the stock tailhousing
for proper alinement of the Atlas onto the transmission. The Toyota transmissions have a short spline length on the
output shaft, since the spud shaft does not bottom out into the Atlas, this spud shaft could move back and forth on the

splines. We have included a spring that must be installed into the Atlas input. This spring will force the spud shaft to

retain full spline contact on the Toyota output shaft. Install the Atlas to the transmission and secure with the new metric
socket head fasteners.

The vehicle may require some tunnel modications for the proper t into the vehicle, and the Atlas shifter will require
some modications to t into the Tacoma.

Right hand Atlas transfer case.

Left hand transfer case.
The shift rod requires a
extension rod to provide
additional clearance.
The Atlas also requires
a speedometer housing
for the transfer case.

SPECIAL NOTE: e components packaged in this kit have been assembled and machined for specic type of conversions. Modications to any of the compo­nents will void any possible warranty or return privileges. If you do not fully understand modications or changed that will be required to complete your conversion,
we strongly recommend that you contact our sales department for more information. is 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 specic torque values, wiring diagrams and other related equipment.
ese manual are normally available at automotive dealerships and parts stores.