Backlash & Side Bearing Play
- Assemble bearings in cups, and install onto carrier. Install differential assembly into carrier, and fit adjusting nuts. Put bearing caps on in original position. Tighten bolts carefully, while checking that adjusting nuts are aligned in bearing bore threads.
- Install dial gauge so plunger touches flange side of ring gear. Tighten flange side adjusting nut until a slight backlash remains. During operation, rotate ring gear through several revolutions to seat side bearings.
- Tighten tooth side nut just to the point where there is no differential end play when measured with dial indicator. At this point tighten tooth side nut an additional 1-1 1/2 notches to preload side bearings.
COMBINED (SIDE & PINION) BEARING PRELOAD
| Application |
New Bearing INCH Lbs. (N.m) |
| Corolla |
10.4-17.4 (1.17-1.97) |
| Celica, & Corona |
11.3-18.2 (1.28-2.06) |
| Cressida |
17.4-24.2 (1.97-2.73) |
| Land Cruiser & Pickup |
20.0-27.8 (2.26-3.14) |
- Confirm that some backlash is still present. Install the preload flange onto the pinion shaft flange, and measure preload. If within specifications go on to next step; if not, tighten tooth side adjusting nut one more notch, and recheck.
- Install dial gauge so that plunger is perpendicular to ring gear tooth. Measure ring gear backlash. If not within specifications, turn left and right adjusting nuts to shift differential assembly in proper direction.
- If left side is loosened one notch, the right side must be tightened one notch to maintain side bearing preload. Continue procedure until backlash is within specifications.
AXLE ASSEMBLY SPECIFICATIONS
| Application |
New Bearing INCH Lbs. (N.m) |
| Drive Pinion Bearing Preload |
| |
Celica, Corolla, & Corona |
8.7-13.9 (.98-1.57) |
| |
Cressida |
13.8-19.0 (1.56-2.15) |
| |
Land Cruiser & Pickup |
16.5-22.6 (1.86-2.55) |
| |
Specification In. (mm) |
| Side-to-Pinion Gear Backlash |
| |
Corolla & Land Cruiser |
.0008-.008 (.02-.20) |
| |
Land Cruiser |
| |
(Limited Slip) |
.0008-.0095 (.02-.24) |
| |
All Others |
.002-.008 (.05-.20) |
| Drive Pinion-to-Ring Gear Backlash |
| |
Land Cruiser |
.006-.008 (.15-.20) |
| |
All Others |
.005-.007 (.13-.18) |
| Ring Gear Backface Runout |
| |
|
Pickup & Land Cruiser |
.004 (.10) |
| |
|
All Others |
.003 (.07) |
- One notch will change backlash 0.002" (.05 mm). Tighten side bearing cap bolts. Check gear tooth contact pattern. See Gear Tooth Contact Pattern at beginning of this section.
Install differential in carrier.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
TIGHTENING SPECIFICATIONS
| Application |
Ft.Lbs. (N.m) |
| Drive Pinion Flange Nut Celica, Corolla, Corona, & Cressida |
80-174 (109-236) |
| |
Pickup |
| |
|
7.5" Ring Gear |
80-174 (109-236) |
| |
|
8.0" Ring Gear |
123-152 (167-207) |
| |
Land Cruiser |
145-174 (197-236) |
| Differential Bearing Cap Bolts |
| |
Corolla |
36-51 (49-69) |
| |
Celica, Corona, Cressida, |
| |
|
Pickup |
51-65 (69-88) |
| |
Land Cruiser |
65-80 (88-109) |
| Ring Gear-to-Case Bolts |
| |
Corolla |
51-58 (69-79) |
| |
Celica, Corona, Cressida, Pickup |
65-76 (88-103) |
| |
Land Cruiser |
76-87 (103-118) |
| Carrier-to-Axle Housing |
| |
Corona |
18-25 (24-34) |
| |
Pickup |
14-22 (19-30) |
| Backing Plate & Axle Retainer Flange Bolts |
| |
Celica |
18-25 (24-34) |
| |
Corolla, Corona & Cressida |
43-54 (58-73) |
| |
Pickup |
43-58 (58-79) |
| |
Land Cruiser |
29-40 (39-54) |
| Front Hub-to-Flange |
20-25 (27-34) |
| Adjusting Nut |
58-72 (69-98) |
| Wheel Nuts |
65-87 (88-118) |