2003 Lexus LS 430FACTORY OEM SERVICE PROCEDURE

Torque Specification

WARNING: This page is about a different car, the 2005 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.
TORQUE SPECIFICATION

Part tightened N.m kgf.cm ft.lbf
Differential carrier assy front (4WD)
Companion flange x Drive pinion See DIFFERENTIAL CARRIER ASSY FRONT (1GR-FE (4WD)
Propeller shaft x Companion flange 88 897 65
Differential front mounting support No, 1 x Frame 137 1,400 101
Differential front mounting support No, 2 x Frame 137 1,400 101
Differential front mounting support No, 2 x Front differential tube assy 160 1,630 118
Differential front mounting support No, 1 x Differential carrier assy front 186 1,900 137
Differential front mounting support No, 2 x Differential carrier assy front 145 1,479 107
Differential front mounting support No, 3 x Differential carrier assy front 108 1,100 80
Front differential mount nut No. 1 87 887 64
Ring gear x Differential case 97 985 71
Differential carrier assy front x Breather tube 13 133 10
Differential carrier assy front x Side bearing retainer 50 510 37
Differential carrier assy front x Differential case 110 1,122 81
Drain plug 65 660 48
Filler plug 39 400 29
Front wheel 112 1,142 83
Differential carrier assy rear
Companion flange x Drive pinion See OVERHAUL
Rear axle housing x Backing plate 66 670 48
Propeller shaft x Companion flange 88 897 65
Differential carrier assy rear x Rear axle housing 20 204 15
Differential carrier assy rear x Bearing cap 85 867 63
Differential case x Ring gear 97 985 71
Bearing cap x adjusting nut lock 13 130 9
Companion flange x Stud bolt 2WD Drive Type: 10 101 7.3
Differential RH case x Differential LH case 47 480 35
Differential vacuum actuator assy x Front differential tube assy 1GR-FE(4WD) 21 210 15
Drain plug 49 500 36
Filler plug 49 500 36
Rear wheel 112 1,142 83
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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