ig109

Anyone know the torque specs on the front suspension components?

Ball joints (upper and lower)

Hub bearing to spindle

Tie rod ends

Strut mount to frame

Strut to control arm??

Thanks in advance.

iamkeniff

iTrader: (16)

as tight as you can get it with a 3/8" air ratchet that puts out more than 25 ftlbs

i use a ingersoll rand 3/8" 55ftlbs and its never missed a lick. ive dropped my truck with hand tools and as tight as i can get them by hand. but now the air tools are just plain awsome so its however tight you can get it

ig109

Finally got someone at the Stealership that was knowledgeable to answer the phone..

Torque specs are as follows..

Upper Balljoint - 37ft/lbs

Lower Balljoint (w/captured washer) 92 ft/lbs

Tie Rod Nuts - 44 ft/lbs

Here is the shocker....

Spindle to hub bearing - 144 ft/lbs

I had him check that spec twice and he says it is clear in the description "spindle to hub bearing". I assumed when he said that that it was the CV nut but no he swears it is for the hub bolts..

DAMN

iamkeniff

iTrader: (16)

just put them as tight as you can get with a 3/8" or a 1/2" your choice. i never torqued any of my trucks. no need when i can break them loose by hand

ig109

I work in a technical developement center for Cummins and see failures of external parts on a daily basis.. Most of which are due to techs not following torque procedures or torque specs. I see internal failures where it is something as simple as the wrong lube applied to threads during assembly that causes a high speed come apart.

I like to know that my torque wrench (which itself is calibrated every three months) says something is tight. Not that i think it is..

Nothing against you personally iamkeniff, just two different views on the situation.

Thanks for the input.

Also very nice truck.

Robert91RS

iTrader: (2)

Fastener Tightening Specifications
Application
Specification

Metric
English

Axle Shaft Nut
240 N·m
177 lb ft

Brake Hose Bracket Bolt
9 N·m
80 lb in

Brake Hose Clip Bolts
12 N·m
106 lb in

Hub and Bearing Assembly to Steering Knuckle Bolts
180 N·m
133 lb ft

Jounce Bumper Stud Nut
30 N·m
22 lb ft

Lower Ball Joint Stud Nut
100 N·m
74 lb ft

Lower Ball Joint to Lower Control Arm Nuts
70 N·m
52 lb ft

Lower Control Arm to Frame Nuts
175 N·m
129 lb ft

Oil Pan Skid Plate Bolts
20 N·m
15 lb ft

Shock Absorber Tennon Nut
20 N·m
15 lb ft

Shock Absorber to Lower Control Arm Bolts
25 N·m
18 lb ft

Shock Absorber to Lower Control Arm Nut
80 N·m
59 lb ft

Stabilizer Shaft Insulator Clamp Bolts
50 N·m
37 lb ft

Stabilizer Shaft Link Nuts
10 N·m
89 lb in

Torsion Bar Crossmember Bolts
95 N·m
70 lb ft

Torsion Bar Support Mounting Nuts
95 N·m
70 lb ft

Upper Ball Joint Stud Nut
50 N·m
37 lb ft

Upper Control Arm to Frame Nuts
190 N·m
140 lb ft

Wheel Speed Sensor Mounting Bolt
18 N·m
13 lb ft

skolman91

iTrader: (28)

working at cummins in columbus i see, i tried to get a job there when i got out of school. what are you doing with a gasser if your a diesel guy..?

iamkeniff

iTrader: (16)

im a diesel mechanic also i do when it comes down to bigger machinary but when I can break it loose with a 3/8" ratchet or a 1/2" ratchet without a breaker bar im not going to get out the torque wrench. do what you want im just saying what i do am ive been doing it for 8yrs, never had a problem with any truck ive done

ig109

I have a gasser because they are cheaper..

I did the same thing before i worked here. I just like to have a spec in front of me, part of the engineer in me..

I have worked on cars for years, always went with my gut and never had one problem..

ig109

I do have one major issue now though I have a set of Moroso Weld on Spring perches, reinstalled the stock shackles, flipped the axle on top of the springs, and now the driveshaft is TOO SHORT!! is this common?

Safe to have the stock shaft shortened and high speed balanced??