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Discussion Starter #1
Anyone ever heard of the splines stripping out on a torsin bar key? Truck is a 2001 Frontier 4wd CC with Calmini upper arms.:thatswck:
 

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Anyone ever heard of the splines stripping out on a torsin bar key? Truck is a 2001 Frontier 4wd CC with Calmini upper arms.:thatswck:
human error. thats about the only way
 

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I've seen pictures of it happening. The T-bars weren't installed correctly. So yeah theoregonfront has it pegged. If it was sufficiently deep it would not strip. Got any pics of the torsion bars?
 

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Lets see the picshas!!! I don't see why they cant strip.
 

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Lets see the picshas!!! I don't see why they cant strip.
It may be theoretically possible but you have about an inch of spline in the front and I think about another inch in the rear. I indexed my bars on the HB one time and I couldn't get enough bolt through to start the nut on the rear cross member. I don't think you can the combination right on bolt and index to put that kind of torque on the bar. It's kind of like breaking a rear end. It can happen not very often or likely.
 

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Discussion Starter #6
A few guys on Ronin said it happens pretty often. The bars are installed correct.(never been out that I know of) they have about .5" of spline engagment at the key. I thought about pulling them back to get more spline in the key but then it pulls alot of spline out of the A-arm mount. I would like for the bars to be about .5" longer. I'm glad I wasn't going very fast when it happened. Scared the $%^$ outta me. Sounded like a gun went off in the cab. I guess I'm too hard on the truck.
 

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it happens. people reindex them and crank 'em too much. its just springed steel with splines... if you over work any spring its going to heat up and fail. same as bending a paper clip over and over, if you overwork the metal, its going to heat up and fail.
 

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Discussion Starter #8
No the bar itself is fine. It's the splines in the key that failed. The bars have been turned up but not reindexed. I think I'm just gonna go ahead and SAS I had talked myself outta that because it is my DD but I do take it off road and i'm pretty hard on it so I guess am just gonna go ahead and do it.
 

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I have seen this before on a truck that had the t-bars swapped out, the owner did not get the anchor arms seated back on the ends of the t-bars correctly and when he went over a set of railroad track *POP* went the driver's side. Sucked for him but I had a spare anchor so he got his truck back together pretty quickly.
 
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