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Tremor Leaf Spring Swap

Chris M

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Dr. Zaius

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Did you have to replace the bump stops to Tremor ones?
I didn't.

So far I haven't experienced any negative effects and I've towed 6000+ and done a few trail rides.

I haven't heavily loaded the bed though.
 

tttrrr

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Hi everyone,
I just picked up a set of Tremor springs but they didn't come with the bolts.
I know my stock XLT ones won't fit, but the genuine Ford ones are pretty pricey compared to generic ones like the Rough Country options.

Those that have swapped/have the genuine bolts, can you tell me the length of yours as well as the thread pitch so I can try and find a better/cheaper option?

Thanks!
 


Racket

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You could contact Rough Country and tell them you're putting Tremor springs on and need the corresponding/longer u-bolts. You don't want the longest ones - I just don't recall exactly which length I wound up with after they initially recommended (and sold me) a too long set - that I returned.

They come with the nuts.
 
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Dr. Zaius

Dr. Zaius

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I don't remember the exacts lengths, but the Tremor U-bolts are 7 threads longer than the FX4 bolts.

The nuts are the same.
 

Racket

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Looking through the thread about using the UK/AU/Tremor leafs it looks like the 8.5 inch U bolts are required.
 

tttrrr

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Looking through the thread about using the UK/AU/Tremor leafs it looks like the 8.5 inch U bolts are required.
Can you link me to that thread? I can't seem to find it.
 

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MickeyG

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I am about to order these new from my dealer as I can't find a used set. My dealer isn't very helpful as they don't fit my truck according to my non tremor vin.

I have the pns for the leafs and ubolts from the second page here.

Does anyone know if new tremor leafs come with bushings installed? I saw a note on my dealer site that the single leafs do, but I can't find any info on the tremors.

I see that the measurements for the shackles are identical (thanks for that) so other than the leafs and ubolts and maybe bushings do I need to order anything else to complete the swap?
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