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Old 08-11-2021, 12:18 PM #1
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Confirming Steps to Replacing RAS with Coils
The rear air suspension gave out on my 2008 Limited so I’m having my mechanic replace with coils. Can anyone confirm the approach? Am I missing anything?

I bought Icon rear 2” lift coils because I have 2” coil spacers up front. I also bought the MetalTech kit with coil top isolators and coil bottom seat bracket. So the plan is to replace the air bags with coils and pull RAS 10A fuse and RAS relay.

I also have XREAS that seems to be working fine, so I’ll ask my mechanic to be careful of those lines. When it craps out, I’ll be looking at Bilsteins or Eibachs.

Is that it?

Thanks
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Old 08-11-2021, 12:22 PM #2
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Old 08-11-2021, 03:33 PM #3
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Some threads for reference (you may have already seen these):

How To: Convert RAS to Coils

RAS to Coil Conversion

Advice on RAS swap to coils/Bilstein 5100s

Help! Rear air suspension conversion
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Old 08-11-2021, 07:37 PM #4
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Quote:
Originally Posted by Pekoe1111 View Post
The rear air suspension gave out on my 2008 Limited so I’m having my mechanic replace with coils. Can anyone confirm the approach? Am I missing anything?

I bought Icon rear 2” lift coils because I have 2” coil spacers up front. I also bought the MetalTech kit with coil top isolators and coil bottom seat bracket. So the plan is to replace the air bags with coils and pull RAS 10A fuse and RAS relay.

I also have XREAS that seems to be working fine, so I’ll ask my mechanic to be careful of those lines. When it craps out, I’ll be looking at Bilsteins or Eibachs.

Is that it?

Thanks
Quote:
Originally Posted by montijo505 View Post
Yes


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Not for sure but I think you may need bump stops to keep the suspension from bottoming out because I don't think the air suspension has bump stops, hopefully someone can confirm if this is correct.
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Last edited by AuSeeker; 08-11-2021 at 07:41 PM.
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Old 08-12-2021, 12:17 PM #5
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Thanks
Quote:
Originally Posted by Bossman View Post

Sounds like it’s a pain to get the retaining clips off the airbags. Any tips?
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Old 08-12-2021, 12:44 PM #6
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Maybe some tips in this document:

https://static.nhtsa.gov/odi/tsbs/20...52208-9999.pdf
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Summer: Michelin Defender LTX 245/60R20 on OEM Limited 20" rims / Winter: Toyo Observe GSi-5 265/70R17 on 2018 TRD Off-Road 17" rims.

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