Which 1/2” spacer to use with my 5100s

Delek · May 15, 2018

Hey guys,

Going to be adding a 1/2” spacer to my Bilstein 5100 setupto get the little bit of extra height I’m looking for. Wanting to know some opinions on the following 3 half inch spacers.

I ordered these top coil spacers because at first it’s all I could find.

Shortly after, I found these 1/2” motofab lower mount spacers which I have heard are much better and will mostly likely be returning the upper mount spacers and getting these.

BUT, before I order the motofabs, I also found these hiding on amazon. Seems like a pretty identical product to the motofab spacers. I have some credit on amazon so that’s really the only reason I would buy these over the motofab blocks.

So, what’s the consensus guys?

Nasty · May 16, 2018

Easiest is the under strut ones

michigan2500hd · May 16, 2018

I don't understand.. a 1" plastic under the shock spacer raises our trucks about 2".
How does a 1/2" spacer only raise the truck 1/2" ? Wouldn't the formula make it 1" higher?
The Amazon kits questionable bolt quality would make me nervous.

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cpttimerestraint · May 16, 2018

The 5100s aren't designed to be used with a spacer. Check your paperwork that cover with them.

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Delek · May 16, 2018

14 hours ago, Nasty said:

Easiest is the under strut ones

Agreed.

Delek · May 16, 2018

6 hours ago, michigan2500hd said:

I don't understand.. a 1" plastic under the shock spacer raises our trucks about 2".
How does a 1/2" spacer only raise the truck 1/2" ? Wouldn't the formula make it 1" higher?
The Amazon kits questionable bolt quality would make me nervous.

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Yes I get confused as well. The spacers arrived today, I will measure them to see if they are an actual 1/2" spacer, than compare after installation.

I agree about the amazon kit bolts. Just needed to hear it from someone else.

Delek · May 16, 2018

3 hours ago, cpttimerestraint said:

The 5100s aren't designed to be used with a spacer. Check your paperwork that cover with them.

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What exactly do you mean? What is the difference between guys running the 2.5" RC kit with a 2" bottom spacer and a 1/2" top spacer versus me getting my 1.8" from the 5100s on the highest setting and then adding the same 1/2" spacer for a bit of extra height?

Ive also seen guys on here install the 5100s at the LOWEST setting on the 2.5" RC kit just because they needed new shocks and wanted to go with Bilsteins.

I will check the paper work though for clarification.

michigan2500hd · May 16, 2018

I think Bilstein says not to combine the level kits so people don't over lift the front. Nothing wrong with setting them on 0 lift and running a spacer kit or even first notch and 1.5-2" spacer.
Company's tend to make a blanket statement to cover their butt.

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Delek · May 17, 2018

1 hour ago, michigan2500hd said:

I think Bilstein says not to combine the level kits so people don't over lift the front. Nothing wrong with setting them on 0 lift and running a spacer kit or even first notch and 1.5-2" spacer.
Company's tend to make a blanket statement to cover their butt.

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Agreed. And that’s definitely a major concern of mine which is why I’m just lookin for a little bit more. My angles are still what I would consider stock even with the 5100s. My last truck had horrible angles, I refuse to do that again. ??

Current angles with Bilsteins