Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2005 Lexus SC 430FACTORY OEM SERVICE PROCEDURE
Torque Specification
Torque Specification Table - Differential
| Part tightened | N.m | kgf.cm | ft.lbf | |
|---|---|---|---|---|
| Propeller intermediate shaft x Transmission | 79 | 805 | 58 | |
| Propeller shaft x Companion flange | 79 | 805 | 58 | |
| Center support bearing x Body | 37 | 375 | 27 | |
| Front floor heat insulator No. 1 set bolt | 5.4 | 55 | 48 in..lbf | |
| Parking brake cable heat insulator set bolt | 5.4 | 55 | 48 in..lbf | |
| Oxygen sensor x Exhaust pipe | 44 | 450 | 32 | |
| RR suspenstion member brace rear lower x Body | 23 | 235 | 17 | |
| Front floor brace center x Body | 20 | 204 | 15 | |
| Rear suspension arm No. 1 x Rear axle carrier | 75 | 765 | 55 | |
| Rear suspension arm No. 2 x Rear axle carrier | 110 | 1,120 | 81 | |
| Rear drive shaft x Side gear shaft | 83 | 850 | 61 | |
| Rear drive shaft set nut | 289 | 2,950 | 213 | |
| Differential carrier set nut | Front side | 123 | 1,250 | 90 |
| Rear side | 142 | 1,450 | 105 | |
| RR suspension member brace set bolt | 50 | 510 | 37 | |
| Body RR end mounting bracket sub-assy x Body | Bolt (A) | 103 | 1,050 | 76 |
| Bolt (B) | 69 | 704 | 51 | |
| Nut | 54 | 551 | 40 | |
| RR end body mounting set plate x Body | 56 | 570 | 41 | |
| Drain plug | 49 | 500 | 39 | |
| Filler plug | 49 | 500 | 39 | |
| Breather plug | 21 | 210 | 15 | |
| Companion flange x Drive pinion | - | - | - | |
| Differential case x Ring gear | 64 | 650 | 47 | |
| Differential carrier x Differential carrier cover | 47 | 475 | 35 | |
| Oil deflector set bolt | 7.0 | 70 | 62 in..lbf | |
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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