Toyota 712578 User Manual

ADV ANCE ADAPTERS INC. P/N: 712578

P.O. Box 247, 4320 Aerotech Center Way
Paso Robles, CA 93447 PAGE 1 OF 3
Telephone: [phone] Fax: [phone] Page Rev. Date: 04-07-00

TOYOTA L/C 6 CYLINDER ENGINE

USING THE NV4500 5 SPEED TRANSMISSION

KIT CONSISTS OF:
No. Qty Part No. Description

1. 1 712577-BLK NEW BELLHOUSING FOR GM ENGINE x NV4500

2. 1 712578-BLK LARGE STEEL ADAPTER PLATE

3. 2 716123 DOWEL PINS (Pressed in steel plate)

4. 1 716139 CLUTCH FORK WEDGE

5. 1 716157 PILOT BEARING SLEEVE

(Modified to 1/4" shorter before shipping)

6. 1 716176 CLUTCH RELEASE ARM

7. 1 716180 BALL PIVOT STUD (Installed in bellhousing)

8. 1 716288 SLAVE CYLINDER BRACKET

9. 1 716316 BEARING COLLAR & BEARING ASSEMBLY

10. 8 723704 3/8" LOCK WASHERS

11. 2 723721 H.H.C.S. 3/8"-16 x 1" LONG

12. 6 723722 H.H.C.S. 3/8"-16 x 1-1/4" LONG

13. 4 723735 3/8" WASHERS

14. 1 NV001 NEW VENTURE INSTRUCTION MANUAL

15. 1 TLC001 LAND CRUISER INSTRUCTION MANUAL

NOTE:
This adapter is not compatible
with 1996 or newer NV4500
transmissions. Special adapters
are available for 1996 or newer
transmissions.

STEP-BY-STEP INSTALLATION PROCEDURES:

1. Secure the vehicle in a position that will prevent any movement from the tires rolling back and forth.

2. Remove the stock skid plate.

3. Remove both front and rear drive shafts.

4. Remove existing exhaust system with the exhaust manifold remaining in position.

5. Disconnect and remove both the transmission and transfer case shifter assemblies.

6. Disconnect the battery.

7. Disconnect both the emergency brake and speedometer cables.

8. Disconnect the back up switch wires from the existing transmission.

9. Remove the transmission and transfer case assembly from the vehicle.

10. Remove the stock 6 cylinder starter motor assembly.

11. Remove the rear factory tubular crossmember support. This will require a torch and you should make sure that all fuel lines
and brake lines have sufficient clearance.

12. Disconnect the slave cylinder from the bellhousing.

13. Support the rear of the engine with a small floor jack.

14. Remove the Toyota bellhousing from the back of the engine.

15. Unbolt the pressure plate assembly from the flywheel.

16. Disconnect the bellhousing mounts from the frame to allow clearance for the new bellhousing assembly.

17. Remove the flywheel assembly and have it machined if necessary.

18. Inspect the Toyota rear main seal and take appropriate measures.

19. Remove the Toyota pilot bearing from the back of the engine crank.

20. Install the new pilot bushing supplied with the adapter kit.

21. On the original Toyota bellhousing, you will need to remove the timing pin located on the front side of the bellhousing. The pin
must be reinstalled into the Advance Adapter plate in the center of the square opening. Use a hand held drill motor to position
the hole for installation of the original Toyota pin.

SPECIAL NOTE: The components packaged in this kit have been assembled and machined for specific type of conversions. Modifications to any of the components
will void any possible warranty or return privileges. If you do not fully understand 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 values, wiring diagrams and other related equipment. These manuals are
normally available at automotive dealerships and parts stores.

ADV ANCE ADAPTERS INC. P/N: 712578

P.O. Box 247, 4320 Aerotech Center Way
Paso Robles, CA 93447 PAGE 2 OF 3
Telephone: [phone] Fax: [phone] Page Rev. Date: 04-07-00

TOYOTA L/C 6 CYLINDER ENGINE

USING THE NV4500 5 SPEED TRANSMISSION

22. Install new Advance Adapter plate to the back of the engine using the original bolts that were used with stock bellhousing.

23. Install flywheel and check the alignment pin for correlation with flywheel marks.

24. Install starter motor after modifying to fit the Advance Adapter plate and double check engagement into flywheel assembly. The
shroud area of the starter motor will need to be modified for the new position in the steel plate.

25. Install clutch assembly using clutch alignment tool. The clutch disc must be a Chevrolet or Midway clutch No. 383303. This
clutch has a 1-1/8" 10 spline. The original Toyota clutch disc should not be used with the NV4500 transmission.

26. On the inside of the vehicle, cut a 5" diameter hole, 5-3/4" center to center, back from the original transmission tunnel hole for
the new shifter location.

27. Trim out the excess sheet metal at the rear of the tunnel area. This will provide extra height for the rear of the transfer case
assembly.

28. Install the new bellhousing assembly as illustrated in the diagram. A new clutch fork and clutch fork release bearing assembly
have been provided for the bellhousing.

29. A new GM backup switch, Part No. 12085485 can be installed into the top shift cover assembly of the new transmission. This
backup switch will be compatible with the original Toyota assembly.

30. Install the transmission and transfer case assembly onto the new bellhousing.

31. Install the clutch slave cylinder bracket No. 716288, to the driver's side of the bellhousing. You may have to move the slave cylinder
from the passenger's side to the driver's side which will require making a new slave cylinder hydraulic line.

32. Install the dust shield to the front face of the bellhousing. Modifications may be necessary for clearance.

33. Install the transmission shifter. You may want to heat up and reposition the shifter handle depending on driver's preference.
The original boot assembly should work if desired. The old tranny hole should be covered to keep heat and elements out of
the vehicle. A 5-1/2" square piece of sheet metal should work effectively.

34. The transfer case linkage can now be assembled at this time. Note that the shifter coming through the floor should be lengthened
if the original position is to be retained. The factory boot can also be reused.

35. Hook up the battery and starter cables.

36. The exhaust system may need rerouting due to the clutch linkage location.

37. Drive shafts should be measured and recut to the appropriate lengths.

38. Speedometer cable should be lengthened.

39. Emergency brake cable should also be lengthened. B.T.B. can supply new cables if necessary.

40. Fill transmission with the appropriate fluid.

PARTS LIST FOR THIS CONVERSION

Description Part Number

NV4500 Transmission
Bellhousing Adapter Advance Adapter #712578
Rear Truss Adapter Advance Adapter #716022-TSW
GM Backup Switch GM #12085485
Advance Adapter Crank Bushing Advance Adapter #716157 (Included with bellhousing)
GM Synthetic Oil GM #12345871
Anaerobic Sealer GM #1052943
Transfer Case Adapter
Slave Bracket Advance Adapter #716288 (Included with bellhousing)
Speedo Cable BTB - 150 N. Gibson Road, Henderson, NV 89014, (702)-568-1511
E-Brake Cable BTB - 150 N. Gibson Road, Henderson, NV 89014, (702)-568-1511
New Centerforce Clutch Assembly Advance Adapter #CF043518 (This disc will work with the NV4500)
(or) Centerforce Clutch Disc #383303
GL4 for Transfer 3 Quarts
716632 Boot

SPECIAL NOTE: The components packaged in this kit have been assembled and machined for specific type of conversions. Modifications to any of the components

will void any possible warranty or return privileges. If you do not fully understand 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 values, wiring diagrams and other related equipment. These manuals
are normally available at automotive dealerships and parts stores.