Limited Slip Differential
Transcription
Limited Slip Differential
TUNDRA (UCK30, 40 and VCK30, 40) Part Number: 00646-41301-100 Section I. Installation Preparation Kit Contents Qty 1 1 Description LSD Differential Lubricant Additive Limited Slip Differential Special Tools Required Regular Tools Toyota Special Service Tools (or equivalent) Weight: 15.9 lbs # 1 2 LS-TUN-001-A Part Number 00602-41301-101 Vehicle Lift (recommended) Vise Grips, C-Clamp, or similar tool that self-holds Paint Marker or Grease Pencil Plastic Hammer Old Pan for Heating Ring Gear (in boiling water) Thread Lock (Part No. 08833-00100, Three Bond 1360K or equivalent) Dial Indicator Micrometer 09504-22011 09950-40011 09950-60010 09950-70010 General Applicability 2000 and newer Tundra Legend STOP: Damage to the vehicle may occur. proceed until process has been completed. For parts, supplies, and tools required, refer to the Toyota Repair Manual. With a few exceptions, installation of the limited slip differential is the same as the remove and replace procedure described in the manual. The exceptions are noted in these instructions. Do not OPERATOR SAFETY: Use caution to avoid risk of injury. CRITICAL PROCESS: Proceed with caution to ensure a quality installation. These points will be audited on a completed vehicle installation. GENERAL PROCESS: This highlights specific processes to ensure a quality installation. These points will be audited on a completed vehicle installation. TOOLS & EQUIPMENT: Special tools are needed for this step. Recommendations We recommend that you lift the vehicle for the installation. Additional Supplies If you have an older vehicle or feel you made need new gaskets and/or seals during installation, purchase a Rear Differential Carrier Gasket Kit (Part No. 04412-34011) from a Toyota Dealer. Rev: A © TRD 12/06/01 Page 1 of 17 TUNDRA (UCK30, 40 and VCK30, 40) LS-TUN-001-A Limited Slip Differential Section II. Vehicle Disassembly Procedure Please follow the Toyota Repair Manual instructions steps 1 through 17 (beginning on page SA-95) to remove the factory differential carrier assembly. The notes in this section will highlight specific points. Figure 1 shows an exploded view of the major parts you will be working with. Figure 1. 1. Lift the vehicle (a chassis lift is recommended) and leave the parking brake off (Figure 2). Figure 2. Rev: A © TRD 12/06/01 Page 2 of 17 TUNDRA (UCK30, 40 and VCK30, 40) LS-TUN-001-A Limited Slip Differential 2. Drain the differential case (Figure 3). Figure 3. 3. Remove both rear wheels and brake drums. Note the use of bolts (8 x 1.25) to push the drum away from the hub in Figure 4. Figure 4. Rev: A © TRD 12/06/01 Page 3 of 17 TUNDRA (UCK30, 40 and VCK30, 40) LS-TUN-001-A Limited Slip Differential 4. Pinch the flexible brake line above the differential housing just upstream of the “T” where the solid lines start (Figure 5). Use tape or cloth to prevent damage to the flexible line. 5. Remove the brake lines (including the parking brake cord) from the drums and plug them promptly to minimize fluid loss (this will make bleeding them at the end much easier). Figure 5. 6. Remove the four (4) 14mm nuts that hold the hubs to the rear axle housing (Figure 6). Figure 6. Rev: A © TRD 12/06/01 Page 4 of 17 TUNDRA (UCK30, 40 and VCK30, 40) LS-TUN-001-A Limited Slip Differential 7. Pull the half shafts and hubs out and set on ground (Figure 7). Have an assistant hold a rag against the shaft as it is removed to keep the work area clean. NOTICE: Take care to pull the shaft straight out and not rub against the oil seal to prevent damage which may cause leaks after reassembly. Figure 7. 8. Place matchmarks on the differential propeller shaft flanges (Figure 8). and Figure 8. Rev: A © TRD 12/06/01 Page 5 of 17 TUNDRA (UCK30, 40 and VCK30, 40) LS-TUN-001-A Limited Slip Differential 9. Remove the 4 nuts, bolts, and washers that connect the propeller shaft to the differential carrier (Figure 9). Detach the propeller shaft from the rear differential carrier. On 2WD models, remove the shaft retainer before detaching the propeller shaft. Figure 9. 10. Remove the 10 nuts that hold the rear differential carrier to the rear axle housing (Figure 10). Remove the rear differential carrier. Check that the rear differential carrier has been completely drained and that the flow of oil has stopped. DO NOT damage the installation surface. Figure 10. Rev: A © TRD 12/06/01 Page 6 of 17 TUNDRA (UCK30, 40 and VCK30, 40) LS-TUN-001-A Limited Slip Differential 11. Your stock unit should look like that in Figure 11. 12. Remove the gasket from the rear axle housing. Section III. Differential Case Removal Please follow the Toyota Repair Manual instructions steps 11-12, 15, and 17-18 (beginning on page SA98) to remove the factory differential case. The notes in this section will highlight specific points. Figure 11. 1. Place matchmarks on the bearing cap and differential carrier (Figure 12). 2. Remove the 4 bolts and bearing cap. Figure 12. Rev: A © TRD 12/06/01 Page 7 of 17 TUNDRA (UCK30, 40 and VCK30, 40) LS-TUN-001-A Limited Slip Differential 3. Using the Special Service Tool (SST) 0950422011 and a plastic hammer, remove the 2 side bearing plate washers (Figure 13). HINT: Measure the plate washer thickness and write it down. 4. Remove the differential case with the bearing outer races from the carrier. HINT: Tag the bearing outer races to show the location for reassembling. 5. Remove the drive pinion from differential carrier. Figure 13. 6. Remove the 12 bolts that secure the ring gear (Figure 14). 7. Using a plastic hammer, tap on the ring gear to separate it from the differential case. Figure 14. 8. Using the SSTs (09950-40011 & 09950-60010), remove the 2 side bearings from the differential case (Figure 15). HINT: Fix the claws of the SST to the notch in the differential case. Figure 15. Rev: A © TRD 12/06/01 Page 8 of 17 TUNDRA (UCK30, 40 and VCK30, 40) LS-TUN-001-A Limited Slip Differential Section IV. Differential Case Assembly Please follow the Toyota Repair Manual instructions steps 1-4, 8-13 (beginning on page SA-101) to install the new limited slip differential case. The notes in this section will highlight specific points. 1. Using the SSTs (09950-60010 & 09950-70010) and a press, install the 2 side bearings into the differential case (Figure 16). 2. Clean the contact surfaces of the differential case and ring gear. Figure 16. 3. Heat the ring gear by placing in boiling water (Figure 17). 4. Carefully take the ring gear out of the boiling water. 5. After the moisture on the ring gear has completely evaporated, quickly install the ring gear to the differential case. 6. After the ring gear has cooled significantly, torque the set bolts to which the thread lock has been applied. Thread lock: Part No. 08833-00100, Three Bond 1360K or equivalent. Torque: 92 ft-lbf 7. Place the 2 bearing outer races on their respective bearings. Make sure the right and left races are not interchanged. 8. Install the differential case into the carrier and install the plate washers to where there is no play in the bearing. 9. Align the matchmarks on the bearing cap and the carrier. 10. Install and torque the 4 bolts to 83 ft-lbf. Rev: A © TRD 12/06/01 Page 9 of 17 Figure 17. TUNDRA (UCK30, 40 and VCK30, 40) LS-TUN-001-A Limited Slip Differential 11. Using a dial indicator, measure the runout of the ring gear (Figure 18). Maximum runout: 0.0020 in. 12. Remove the bearing cap. Figure 18. 13. Install the plate washer on the ring gear back side (Figure 19). HINT: Make sure that the ring gear has backlash. Figure 19. Rev: A © TRD 12/06/01 Page 10 of 17 TUNDRA (UCK30, 40 and VCK30, 40) LS-TUN-001-A Limited Slip Differential 14. Tap on the ring gear with a plastic hammer so that the washer fits to the bearing (Figure 20). Figure 20. 15. Using a dial indicator, while holding the companion flange, measure the ring gear backlash (Figure 21). Backlash: 0.006 – 0.010 in. (do not use the number in the manual) Figure 21. 16. Select a plate washer for the back side ring gear so that the backlash is within the required range (Figure 22). Figure 22. Rev: A © TRD 12/06/01 Page 11 of 17 TUNDRA (UCK30, 40 and VCK30, 40) LS-TUN-001-A Limited Slip Differential 17. Select a ring gear teeth side plate washer so that there is no clearance between the outer race and case (Figure 23). 18. Remove the 2 plate washers that were selected in steps 16 and 17 and the differential case. 19. Install the plate washer into the ring gear back side of the carrier. Figure 23. 20. Place the other plate washer onto the differential case together with the outer race, and install the differential case with the outer race into the carrier (Figure 24). 21. Tap on the ring gear with a plastic hammer so that the washers fit to the bearing. Figure 24. 22. Using a dial indicator, while holding the companion flange, measure the ring gear backlash (Figure 25). Backlash: 0.006 – 0.010 in. (do not use the number in the manual) If the backlash is not within the specified value, adjust it by either increasing or decreasing the thickness of washers on both sides by an equal amount. HINT: There should be no clearance between the plate washer and the case. Make sure that there is a ring gear backlash. Figure 25. Rev: A © TRD 12/06/01 Page 12 of 17 TUNDRA (UCK30, 40 and VCK30, 40) LS-TUN-001-A Limited Slip Differential 23. Remove the ring gear teeth side plate washer and using a micrometer, measure the thickness (Figure 26). 24. Using the backlash as a reference, install a new washer (0.0024 – 0.0035 in.) thicker than the washer removed. HINT: Select a washer which can be pressed in 2/3 of the way with your finger. 25. Using a plastic hammer, install the plate washer Figure 26. 26. Recheck the ring gear backlash (Figure 27). Backlash: 0.006 – 0.010 in. (do not use the number in the manual) If the backlash is not within the specified value, adjust it by either increasing or decreasing the thickness of washers on both sides by an equal amount (see Table 1 on the next page). HINT: The backlash will change by about 0.0008 in. corresponding to 0.0012 in. change in the plate washer. 27. Reinstall the bearing cap (see steps 15 – 16). 28. Coat 3 or 4 teeth at three different positions on the ring gear with red lead primer. 29. Hold the companion flange firmly and rotate the ring gear in both directions. 30. Inspect the teeth pattern (see page 15). Rev: A © TRD 12/06/01 Page 13 of 17 Figure 27. TUNDRA (UCK30, 40 and VCK30, 40) Rev: A © TRD 12/06/01 Page 14 of 17 LS-TUN-001-A Limited Slip Differential TUNDRA (UCK30, 40 and VCK30, 40) Rev: A © TRD 12/06/01 Page 15 of 17 LS-TUN-001-A Limited Slip Differential TUNDRA (UCK30, 40 and VCK30, 40) Section V. Differential Case Installation Please follow the Toyota Repair Manual instructions step 1 (beginning on page SA-110) to install the new limited slip differential case. The notes in this section will highlight specific points. 1. Install a new gasket. 2. Install the differential carrier assembly (with the limited slip differential inside) with 10 washers and nuts. NOTICE: Be careful not to damage the installation surface. Torque: 54 ft-lbf Section VI. Reassembly of Vehicle Please follow the Toyota Repair Manual instructions steps 2 through 4 (beginning on page SA-110) to install the new limited slip differential case. The notes in this section will highlight specific points. 1. Align the matchmarks on the propeller shaft and differential flanges and connect the flanges with the 4 bolts, washers and nuts. 2. Torque the 4 bolts to 54 ft-lbf. 3. Install new O-Ring to rear axle housing. 4. Install rear axle shaft assemblies. Torque to 51 ft-lbf. 5. Connect brake lines and parking brake cable. Torque to 11 ft-lbf. 6. Install a new gasket and replace the brake drums and the wheels. Rev: A © TRD 12/06/01 Page 16 of 17 LS-TUN-001-A Limited Slip Differential TUNDRA (UCK30, 40 and VCK30, 40) 7. Replace the Drain Plug and tighten to 49 ft-lbs. Remove the Filler Plug. Pour all of the limited slip differential lubricant additive into the differential. Fill the differential with Hypoid Gear Oil API GL-5 Oil Viscosity: Above 0ºF: SAE 90 Below 0ºF: SAE 80W or 80W – 90 Capacity: 2WD: 3.33 US quarts 4WD: 3.12 US quarts Stop filling when the level of the oil reaches within 0.200” of the bottom of the filler hole. Replace the Filler Plug and tighten to 49 ft-lbs. 8. Bleed rear brake lines. Rev: A © TRD 12/06/01 Page 17 of 17 LS-TUN-001-A Limited Slip Differential