I have a 1989 RS that I will be installing front struts. I know this has been posted before but I can't find it. What is the torque specs. for the bolts that hold the struts to the hubs? Thanks in advance.

 

203 Ibs.

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1989 IROC-Z 5.7L

 

Don't know where you got 203 lbs. at, but final torque is not supposed to EXCEED 148 lbs.

KAM

 

Actually I could've sworn that 200 lb/ft was the spec for the strut-to-knuckle bolts.


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I believe GM recommends 120 ft./lbs, but I'm not sure. I did mine at that much. Never had a problem. Keep in mind the rotation of the threads on top of the mount.

 

I got 203Ibs from my 1989 GM shop manual. Where did you get yours?

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1989 IROC-Z 5.7L

 

Different year manuals recommend different torques. Newer f-bodys had a lower torque specs for some reason. As long as its between 150-200, it should be fine. They're crimp nuts, so they wont fall off



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-Justin-
T-Top '86 5.0L LG4 700R4 WS6
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Chiltons... says 125 ft.lbs., followed by 120* turn, not to exceed 148 ft.lbs. (which apparently calculates to 200 Nm...), but you're talking ft.lbs., too, right? I dunno... 125-148 seems plenty tight... That's a heck of alot of diff between the 2 manuals though, ain't it?

KAM

 

I used the 203 figure - actually probably more. (3" pipe x a lot of pressure = more than 203) I messed up the threads on the bolts so I got new 5/8 grade 8 bolts, washers, and nuts and used those. I think the knuckle bolt is some sort of metric thread that no hardware store near me carried so I used standard. If I have any problems I'll post (as usual)

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The bolts on mine were std. 15/16...
hmmmmm

KAM

 

Just use an impact gun and dont worry about it