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Recommended Suspension Enhancement for a Lifted 2021 GMC Sierra 1500  

Question:

Hi, I have 2021 GMC 1500 4x4lifted 6, does sumo spring works? Is there a spacer I can use?

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Expert Reply:

This will depend on how your 2021 GMC Sierra 1500 was lifted.

If it was a frame lift, this will not affect the spacing on the suspension and the SumoSprings # SSR-610-40 will definitely be a good option.

If it was a suspension lift, there will be too much of a gap and the # SSR-610-40 will not fit properly as they do not offer spacers. For this style of lift, you will want to go with an air bag system, like the Firestone # F2609. You would then need to measure from the bottom of the top bracket to the top of the bottom bracket to see which spacer is needed. I have the measurements and spacers listed below.

6 1/2 to 7 1/2 - # F2536
7 1/2 to 8 1/2 - # F2366
8 1/2 to 9 1/2 - # F2367
9 1/2 to 10 1/2 - # F2370
11 1/2 to 12 1/2 - # F2374

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Featured Help Information

Instructions

Instructions for F2609Instructions for SSR-610-40

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Breaking Down the SumoSprings Solo Custom Helper Springs - Video
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Firestone Double Convoluted Ride-Rite Air Helper Springs Installation - 2019 GMC Sierra 1500 - Video
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