Control arm torque specs?

[Matthew Jeschke]

I swapped out my rear end. I have also been rebuilding front suspension.

However having hard time finding torque specs for control arms. My chiltons manual does not go into that detail.

Anybody know control arm torque specs front and rear upper and lower for

2001 z71 tahoe?

Thx

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[Erickk120]

140 ft lbs for upper control arms
130 ft bs for bottom control arms

just make sure you have the bushings loaded before you torque them down to proper spec, otherwise, you will tear them or that is the theory.

 

[SnowDrifter]

just make sure you have the bushings loaded before you torque them down to proper spec, otherwise, you will tear them or that is the theory.

Absolutely true

Stock rubber bushings don't actually rotate. They flex. The inner metal liner is held stationary with the through-bolt. The outer metal liner is held fixed relative to the control arm. Any rotational motion is provided by the flexing of the rubber. At ride height (on ground), you want the net rotational force on the bushing to be zero.

Other info: This flexing vs. pivoting property is why factory bushings don't need to be greased. Aftermarket poly bushings provide a stiffer connection as there's no rubber taking up the motion - they slide. But that same property is what makes them prone to squeaking, and require periodic lubrication. They're similar in principle to a ball joint, while the stock ones are closer to that of a spring

 

[YukonXLMan]

140 ft lbs for upper control arms
130 ft bs for bottom control arms

just make sure you have the bushings loaded before you torque them down to proper spec, otherwise, you will tear them or that is the theory.

Would this be the same specs for a 2017 Yukon XL? needing to replace part number and want to be sure I'm torquing to specs.
Arm Asm-R/Axl Lwr Cont - GM (22868629)