OK...For a while now I have been planning on creating a list of torque specs for our Fieros that could be posted in the Faqs section. I have the list but would like some feedback to make sure that my list is accurate- Also, I may add to it; This lists the suspension, brake system and clutch torque specs- these are the ones we use a lot in regular maintenance- Obviously, most people take their trans or engine to a shop where the SHOP deals with those specific torque values...



Please look the list over and suggest any changes to me...once it is solid, I will ask Cliff to transfer the list to the Faqs section.

1988 REAR SUSPENSION & CRADLE

Front Cradle bolt/nut = 66 Lb/ft

Rear cradle Bolts = 76 lb/ft

Trailing arm forward = 37 lb/ft

Trailing arm rear bolt = 44 lb/ft + 90*

Lat' arms spindle bolt = 37 lb/ft + 90*

Lat' arm to frame bolt = 41 lb/ft

Strut to Spindle bolts = 140 lb/ft

Strut bracket-tower = 18 lb/ft

Strut top to bracket = 65 lb/ft

Additional; The 3 hub mounting bolts are supposed to be 62 lb/ft and the Axle nut is supposed to be 200 lb/ft (Only use NEW nuts!)

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1988 FRONT SUSPENSION

Upper control arm shaft to crossmember bolt = 52 lb/ft + 90*

Lower control arm to crossmember nut = 37 lb/ft + 270*

Upper Ball joint to Knuckle nut = 30-40 lb/ft (1/6 turn to align cotter pin>>Not to exceed 55 lb/ft)

Lower Ball joint to Knuckle nut = 26 lb/ft + 180* (Max 1/6 turn to align cotter pin)

Steering gear to crossmember Bolt = 20 lb/ft

Tie Rod at knuckle nut = 15 lb/ft + 180* (Max 1/6 turn to align cotter pin)

Hub/Bearing to Knuckle bolt = 62 lb/ft <<<<Factory book is WRONG!!!! (This is right)>>>>>

Upper shock nut = 8 lb/ft

Lower shock to arm bolt = 20 lb/ft

Stabilizer bar to frame bolts = 20 lb/ft

Stabilizer bar link bolt NUT = 12 lb/ft

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1988 BRAKE SYSTEM

Calipers mounting bolts = 74 lb/ft

Caliper bridge bolts = 74 lb/ft

Brake hose to caliper = 19 lb/ft (Book says 33- maybe dry but brake fluid is usually on threads)

Caliper bleeder valve = 116 lb/INCH (9.6 lb/ft)

Master Cylinder to booster nuts = 20 lb/ft

Parking brake lever to caliper nut = 35 lb/ft

Splash shield bolts = 107 lb/INCH (8.9 lb/ft)

Lines to Master Cylinder = 15 lb/ft

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ENGINE MOUNTS & CLUTCH

Engine mount nuts = 41 lb/ft

Torque strut nuts/bolts = 42 lb/ft

Trans mount to bracket nuts = 41 lb/ft (1984-85) /// 35 lb/ft (1986-88)

Forward trans mount to frame nuts = 35 lb/ft

Rear trans mount to frame nuts = 18 lb/ft

Transmission to engine bolts = 55 lb/ft

Flywheel to crankshaft bolts = 50 lb/ft

Clutch cover to flywheel bolts = 15 lb/ft

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1984-87 REAR SUSPENSION

Lower arm to subframe nuts = 66 lb/ft

Ball joint to arm castellated nut =

Ball Joint Clamping bolt nut = 30-36 lb/ft

Ball joint to arm nuts = 13 lb/ft

Strut to spindle nuts = 140 lb/ft

Strut top nut = 65 lb/ft

Strut top hat nuts = 18 lb/ft

Tie Rod to Knuckle nut = 30-39 lb/ft


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1984-87 FRONT SUSPENSION & CROSSMEMBER

Upper control arm to crossmember nut = 66 lb/ft

Lower control arm to crossmember bolt = 52 lb/ft

Upper ball joint to knuckle nut = 35 lb/ft (1/6 turn to align cotter pin)
Upper ball joint to arm nut = 28 lb/ft

Lower ball joint to knuckle nut = 55 lb/ft (1/6 turn to align cotter pin)

Steering rack to frame bolts = 22 lb/ft

Tie rod to knuckle nut = 29 lb/ft (1/6 turn to align cotter pin)

Crossmember to frame rail bolt = 52 lb/ft (States in 1985 Pontiac manual; Replace and lubricate)

Crossmember Bracket to frame rail = 52 lb/ft (States in 1985 Pontiac manual; Replace and lubricate)

Crossmember braces to frame and rail, bolt = 20 lb/ft

Shock absorber upper mount bolts = 20 lb/ft

Shock absorber to lower arm nuts = 51 lb/ft

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1984-87 BRAKE SYSTEM


Calipers mounting bolts = 35 lb/ft

Brake hose to caliper = 19 lb/ft (Book says 33- maybe dry but brake fluid is usually on threads)

Caliper bleeder valve = 132 lb/INCH (11 lb/ft)

Master Cylinder to booster nuts = 20 lb/ft

Parking brake lever to caliper nut = 35 lb/ft

Splash shield bolts = 84 lb/INCH (7 lb/ft)

Lines to Master Cylinder = 19 lb/ft (84-85) 15 lb/ft (86-87)

[This message has been edited by cvxjet (edited 03-28-2020).]

EPIC!

This information in a nice updated thread is invaluable to the community! Thanks for compiling this!!!

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"Discord"
Red 1988 GT under restoration!

Let's Go Mets!

( ͡° ͜ʖ ͡°)

Thanks....Hoping I hear from Ogre and few others to make sure these are correct........

quote Originally posted by Shho13: EPIC! This information in a nice updated thread is invaluable to the community! Thanks for compiling this!!!

^^^^^^
This

Holy s***, Eric, great work! Thanks.

Hey- Does anyone have any input on this? Let me know- I will have Cliff move it to "Faqs" tomorrow....

Great job !!

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fierogt28

88 GT, Loaded, 5-speed.
88 GT, 5-speed. Beechwood interior, All original.

I have an original GM shop manual if there are any not listed. I can search the book and get answers if they are available.

Good job on this, bookmarking it should save time in the future.

A word of caution on ball joint torque values-I have found them to be on the light side and do not apply to ball joints with nylock nuts. When the specs were written, no one was selling ball joints etc with nylock nuts.

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86 GT built 2.2 ecotec turbo
rear SLA suspension
QA1 coilovers on tube arms

Personally, I would never use ball joints with Nylock nuts- Only castellated nuts with cotter pins.

Cliff, could you move this over to the Faqs section?

.

[This message has been edited by olejoedad (edited 01-12-2020).]

Thank for putting this list together. I can't say how much time I've spent digging in different manuals for the 88.

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∇PONTIAC∇
“The difference between a Fiero owner
and a genius is that genius has its limits.”

Great thread, did I miss 84-87 Cradle spec ?

I just noticed your post here, Hunter- the rear cradle bolts and nuts are the same for all years- even tho the early cars (84-87) use rubber bushings and the 88 is solid-mounted.