GTO Technical notes
Here is our GTO Technical notes page, You will find specifications for the O.E.M. Rear end, Torque specs, capacities, and more if there's something you'd like to know E-mail kurt@difftechnics.com.au and I'll get back to to you with the most accurate answer possible.

Suspension and mounting bolts
as per Holden workshop manual
Rear Crossmember front mounting bolt 
125 Nm then 30-45 degree turn angle
Crossmember rear mount to vehicle underbody attaching bolt
30-40 Nm
Crossmember rear mount to differential carrier rear cover attaching bolt
85-105 Nm 
Brace Bolt
60-70 Nm
Trailing arm to rear crossmember attaching nut 
95-105 Nm
Drive shaft constant velocity joint to trunnion flange/stub attaching bolt 
50 Nm, then 60-75 Degree turn angle 
Road wheel attaching nut 
100-125 Nm 
Rear brake backing plate to trailing arm attaching bolt 
50-60 Nm
Brake caliper anchor plate to trailing arm bolt 
70-100 Nm 
Collar nut to trunnion assembly 
295-305 Nm
Differential carrier to rear crossmember attaching bolt 
90 Nm then 30-45 Degree turn angle
Stabilizer bar link to trailing arm attaching nut 
18-26 Nm 
Stabilizer bar mounting bracket to crossmember attaching bolt 
18-26 Nm
Exhaust pipe to catalytic converter attaching bolt
30-50 Nm 
Rear muffler hanger hook attaching bolt
20-25 Nm
Shock absorber upper mounting nut and lock nut 
12-16 Nm
Shock absorber lower mounting bolt 
105-125


Differential torque Specifications
as per Holden workshop manual
Rear cover attaching bolts
23-31 Nm
Filler plug
23-31 Nm
Drain plug
23-31Nm
Final Drive ring gear bolts
130-145 Nm 
L.S.D. Case cap to cover attaching bolts 
34-45 Nm 
Collar Nut to trunnion assembly* 
295-305 Nm 
Drive shaft constant velocity joint to trunnion flange/inner axle shaft flange bolts*
50 Nm, then 60-75 degree turn angle
Road wheel attaching nut 
100-125 Nm
Brake caliper anchor plate to trailing arm bolts 
70-100 Nm 
Rear brake backing plate to trailing arm attaching bolts
70-80 Nm 
Differential Carrier to rear crossmember attaching bolts*
90 Nm then 30-45 degree turn angle 
Rear mount to vehicle underbody attaching bolts 
30-40 Nm 
Rear mount to differential carrier rear cover attaching bolts*
85-105 Nm 
Shock absorber lower mounting bolt 
105-125 Nm 
Crossmember front mounting brace to underbody bolts
60-70
Crossmember front mounting bolt
125 Nm, Then 30-45 degree turn angle 
Intermediate exhaust pipe to catalytic converter attaching bolts
30-50 Nm 
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