Discovery 1 - rear upper shock mount. Interchangeable?

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TylerN
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Discovery 1 - rear upper shock mount. Interchangeable?

#1 Post by TylerN » Wed Feb 10, 2016 2:30 pm

Just snapped the upper shock mount stud in the rear end of my disco 1. Then snapped the same one in my parts truck. Argh.
Before I get setup to pull the other side off the parts truck, does anyone know if they are right side/left side specific?
It's raining steadily in Hope right now & if it won't fit I'd rather not roll around in the wet gravel. Haha.

TylerN
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Re: Discovery 1 - rear upper shock mount. Interchangeable?

#2 Post by TylerN » Wed Feb 10, 2016 5:17 pm

To answer my own question...yes they are inter changeable.

red90
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Re: Discovery 1 - rear upper shock mount. Interchangeable?

#3 Post by red90 » Wed Feb 10, 2016 5:37 pm

I've never seen one break. Are your shocks possible bottoming out?

TylerN
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Re: Discovery 1 - rear upper shock mount. Interchangeable?

#4 Post by TylerN » Wed Feb 10, 2016 6:32 pm

It doesn't appear as though the shocks are bottoming out, it looks like a twist failure on the stud. But I've managed to break 3 of the damn things this afternoon. The first two were exhaust side, which both gave me some difficulty with being seized. The last one was my bad from trying to suck in the rubber bushing into the top of the shock using the washer. Was going oh so well, then pop!

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Re: Discovery 1 - rear upper shock mount. Interchangeable?

#5 Post by red90 » Wed Feb 10, 2016 6:35 pm

Well you have something wrong. Are the shocks and bump stops stock?

Are the bushings stock? Are you installing the bushings and washer correct? It should tighten hard until it bottoms on the shoulder.

TylerN
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Re: Discovery 1 - rear upper shock mount. Interchangeable?

#6 Post by TylerN » Wed Feb 10, 2016 6:40 pm

Yep, all stock & all set up to go back together the way it came apart. All parts are original stock. Have been using hand tools, so no going crazy with an impact gun. I've never had a run like this before. Argh.

red90
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Re: Discovery 1 - rear upper shock mount. Interchangeable?

#7 Post by red90 » Wed Feb 10, 2016 6:53 pm

Maybe take a picture. Something is wrong. The nut is meant to be tightened right up and the shock should end up being able to flex easily a fair amount.

TylerN
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Re: Discovery 1 - rear upper shock mount. Interchangeable? -

#8 Post by TylerN » Wed Feb 10, 2016 7:10 pm

Not going to bother with a picture, it just looks like a snapped stud. Haha. The nut wasn't cross threaded either, as I was able to finger tighten to the nylon locking ring.
At this point I just need a spare stock hanger to use until my parts come in for the lift (got a set of lowered hangers on their way, but possibly a good week or so out).

red90
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Re: Discovery 1 - rear upper shock mount. Interchangeable?

#9 Post by red90 » Wed Feb 10, 2016 7:14 pm

I'm suggesting something is being installed wrong. Twenty years of wheeling and I've never seen an upper rear shock mount break.

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Re: Discovery 1 - rear upper shock mount. Interchangeable?

#10 Post by red90 » Wed Feb 10, 2016 7:15 pm

If you install lower mounts make sure you are also installing taller bump stops.

TylerN
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Re: Discovery 1 - rear upper shock mount. Interchangeable?

#11 Post by TylerN » Wed Feb 10, 2016 7:19 pm

red90 wrote:I'm suggesting something is being installed wrong. Twenty years of wheeling and I've never seen an upper rear shock mount break.
I've only ever seen one break before, and that was a rusty seized up one back in Ontario while being removed.
I know what you mean though, I've rarely seen this type of thing happen, especially on the same day. Changed lots of suspension set ups on many different trucks myself over the years so it's not like I'm coming at this blind either. Ah well, just one of those days.

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Re: Discovery 1 - rear upper shock mount. Interchangeable?

#12 Post by BlkP38 » Wed Feb 10, 2016 8:14 pm

The studs do snap (if badly seized). I just drilled and tapped the end of the shaft and bolted the damper up with the same washer. No probs in 3 years now.
Eric.

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Re: Discovery 1 - rear upper shock mount. Interchangeable?

#13 Post by Bill E. » Thu Feb 11, 2016 3:10 pm

Hi BCP,
Not questioning your wrenching skills or previous experience working on suspensions but I have to agree that something is wrong.
In my rookie days (a few years back now) I put the convex side of the washers facing outwards away from the upper shock bushing on the rear of my 90. I snapped the top of the shock off in very short order. Replaced the shock and installed the washers with the convex face inwards towards the rubber bushing. Life was good. Just sayin'. :bounce:
Bill

TylerN
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Re: Discovery 1 - rear upper shock mount. Interchangeable?

#14 Post by TylerN » Thu Feb 11, 2016 5:25 pm

Well, got a replacement hanger today, had it on in 15 minutes without any issues. Same tools, same set up, same torque. Thanks for the input guys & fast responses. I'm putting this all down to black magic or a strange karmic debt.

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