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-   -   $75 for reinforcment plate bolts and nuts? (https://xoutpost.com/bmw-sav-forums/x5-e53-forum/100029-75-reinforcment-plate-bolts-nuts.html)

bmw540san 03-09-2015 07:41 PM

I may check with my local Doge dealer if they stock these:

Dodge Journey. #06508881AA: BOLT. Mounting. Hex Flange Head. M10x1.25x55.00, M10x55.

The bolt is holding transmission to engine and if I can verify is 10.9 grade, it'd be a perfect replacement for about $1 a piece or 10 times less cost than OEM.

crystalworks 03-10-2015 01:05 AM

As long as they thread back in properly... I'll be reusing the ones that I pull out with the addition of some lock-tite. That is unless someone points to an incident involving doing so that had some sort of adverse effect/consequence.

$75 to some bolts that hold a shield on is not my idea of money needing to be spent. Especially considering the most offroad our X ever gets is the occasional creep over a curb to park in grass or something.

four.8is 03-10-2015 03:18 AM

I noticed my front end squeeks like crazy after I reused the same bolts to secure the plate back on...not sure if it has anything to do with the bolts but I incline to think it does since they are torque to yield bolts that stretch upon initial use ; after that, they just become weaker with every removal and installing of the plate.
I hate taking that plate off...

Joshdub 03-10-2015 01:39 PM

I reused mine with the intention of ordering some and replacing them in the near future. I have not noticed any noises and or handling differences. But I'll find an alternative now since paying that much for bolts is plain stupid.

bmw540san 03-11-2015 10:15 AM

Quote:

Originally Posted by crystalworks (Post 1030124)
As long as they thread back in properly... I'll be reusing the ones that I pull out with the addition of some lock-tite. That is unless someone points to an incident involving doing so that had some sort of adverse effect/consequence.

$75 to some bolts that hold a shield on is not my idea of money needing to be spent. Especially considering the most offroad our X ever gets is the occasional creep over a curb to park in grass or something.

My worry is that they may snap not so much they could come loose. It's reinforcement plate after all and even though my X5 does not see any off roading, there has to be constant stress on the bolts every time truck moves.
One thing is for sure, I do agree about not paying that much money for bolts and nuts.
More than likely, I'll go with M10X60 10.9 grade from Ace. I'll report back my findings.

bmw540san 03-11-2015 10:17 AM

Quote:

Originally Posted by four.8is (Post 1030137)
I noticed my front end squeeks like crazy after I reused the same bolts to secure the plate back on...not sure if it has anything to do with the bolts but I incline to think it does since they are torque to yield bolts that stretch upon initial use ; after that, they just become weaker with every removal and installing of the plate.
I hate taking that plate off...

Not to sound paranoid, but that'd be my worry with reusing them. Also, following the torque recommendations with stretched bolts may not be good idea. As suggested, I'll inspect mine upon removal.

crystalworks 03-11-2015 01:22 PM

Quote:

Originally Posted by bmw540san (Post 1030281)
My worry is that they may snap not so much they could come loose. It's reinforcement plate after all and even though my X5 does not see any off roading, there has to be constant stress on the bolts every time truck moves.
One thing is for sure, I do agree about not paying that much money for bolts and nuts.
More than likely, I'll go with M10X60 10.9 grade from Ace. I'll report back my findings.

Point taken, and I certainly understand your position.

I am not sure (or an engineer) but I was thinking they may be designed to shear in the event of an accident for some reason or other. Maybe to aid in collapsing the crumple zones. I am not so much worried about the stress of normal (or even hard driving). But again... lol I am not an engineer.

David.X5 03-11-2015 03:41 PM

I have a PhD in engineering and I don't get why these bolts are spec'd like this. I am convinced you would tear that thin aluminum panel long before you would break one of those bolts.

StephenVA 03-11-2015 05:03 PM

The earlier ones have nice and shiny Alloy pans, the later models get an ugly blackened steel one.....

bmw540san 03-11-2015 05:09 PM

Quote:

Originally Posted by crystalworks (Post 1030305)
Point taken, and I certainly understand your position.

I am not sure (or an engineer) but I was thinking they may be designed to shear in the event of an accident for some reason or other. Maybe to aid in collapsing the crumple zones. I am not so much worried about the stress of normal (or even hard driving). But again... lol I am not an engineer.

Best info I could find states that the plate does aid in reinforcing and stiffening the sub frame not to mention that 2 of the bolts are holding sway bar brackets. Also, without it there is more movement and more stress at welding seams on sub frame. The plate might be fairly thin, but the stress is applied horizontally on it and whatever I do, I'd never leave it off. I truly believe that it's more important than some may think.

Now, even if I go with 10.9 grade aftermarket bolts, they're not designed to stretch as OEM so I'm really not sure what can happened.


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