Suspension Tech General discussion of suspension for the Ford Ranger.

Need Superlift help please!

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Old 03-13-2010
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Need Superlift help please!

I got everything removed from my truck last night, now I'm beginning to install the Superlift kit.

I'm running into a few problems. First off there is a major discrepancy between Superlift's torque specs and those I found in my '07 Ranger Ford Service Manual.
For instance the two horizontal differential support bolts that go thru the new brackets:
Superlift says 111-148 ft lbs for the upper bolts and 135-156 ft lbs for the lowers. My Ford manual says when reinstalling these bolts, torque them to only 49!
I was just going by the Superlift numbers, while tightening the upper bolts I was thinking, "These are WAY too tight". So I stopped at 100lbs. The lower ones, on the other hand, the passenger side didn't even make it to 100lbs before snapping the end off.
What did you all torque yours to?!
 
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Old 03-13-2010
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Now that I think of it, aren't 7/16" grade 5 bolts only supposed to be torqued to like 50 ft lbs?
 
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Old 03-13-2010
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I don't think a torque wrench ever touched my ranger.
 
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Old 03-13-2010
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I thought for once I would actually use one, to do it exactly how they say to do it... so far it isn't working out!
 
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Old 03-13-2010
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Yeah, normally I would say the tighter the better for something like this, but that's with grade 8 bolts. with grade 5 I would look up some specs just to make sure they can take 100+ ft-lbs.
 
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Old 03-13-2010
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I just looked up what a 7/16" Grade 5 bolt should be torqued at, and it is 50 lb ft when installed dry. Superlift is way out to lunch on their torque specs!
 
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Old 03-13-2010
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Is it normal for the tab off the differential housing to be crooked in the bracket like this? I never paid any attention to it when it was mounted in the stock location as to whether it looked like this or not. I assume is needs to be like this so it is tipped up and aligned with the driveshaft. The second pic is the bolt that snapped.



 
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Old 03-13-2010
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^^ Mine isn't like that.
 
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Old 03-13-2010
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A few little parts on my install sat funny and had to be minorly adjusted. I don't think mine was off like that but it doesnt look too bad.

I never used torque wrench either, too much work. I just tighten things a good amount and then recheck a hundred miles later.

But then again my wheel came off while driving(100% unrelated to superlift). that worked real well.
 
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Old 03-13-2010
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Got it all sorted out. I went and got new Grade 8 Bolts for all the main stuff, dropped the diff again and the second time everything lined up much better. I stuck to my service manual and torqued them to 49. Don't follow Superlift's torque specs. They're WAAAYYY off.
 
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Old 03-13-2010
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Good to hear you were able to get it sorted out. I used Grade 8 hardware as well. I'd rather spend a few extra bucks and be safe than sorry.
 
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