Recommended Suspension Enhancement for 2021 Chevrolet Express 4500 Cutaway Motorhome

Question

Question:

Got a motorhome on a 2021 chevy express van 4500 cutaway. Front and rear suspension enhancement, I need it, hook me up.

asked by: Leo

0

Expert Reply:

For front and rear suspension enhancement on a Chevrolet Express 4500 I recommend the SumoSprings Solo Custom Helper Springs # SSF-204-54 and # SSR-206-54. The SumoSprings will help absorb bumps and shocks as well as minimize sway and giving you a smoother ride overall. They have progressive load control and work independently to help reduce body roll and compensate for off-center loads. These durable helper springs are made of a high-density microcellular urethane and are maintenance-free.

I have attached some reviews of the SumoSprings for you to check out.

expert reply by: Robin H

0

Bill A.

7/6/2025

I installed the sat-206-54 on the rear of a 2021 express 4500 motorhome and they are about an inch from touching the rear axle. Unlike the pictures show in reviews. Is there a shim to make up the difference. The front is much better after installation of the SSF-204-54 but the rear still has sway I think because not touching axle.

Robin H.

7/7/2025

@BillA SumoSprings typically have a gap like that so they aren't engaged all the time. For the motorhome that isn't as common since they're typically loaded up with extra weight that closes up the gap. SumoSprings does not have additional spacers available for sale but they might be able to send you a pair if you give them a call.

Answer 1

For your Air Spring Union Tee like #F3025-1 the only troubleshooting you can do is what you have already been doing. The Tee fittings simply use a compression so pushing into place is all that is required. The clean 90 degree cut is also all that is…

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Answer 2

We do have an option for suspension enhancement for your motorhome on a 2020 Chevy Express 4500 cutaway chassis, but the SuperSprings SSA245-2 won't fit since you do not have the top overload spring, as they are designed to install on top of the…

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Answer 3

The SumoSprings Solo Custom Helper Springs - Front Axle #SSF-204-54 come as a pair; if you wanted four of these springs you would need to order two kits. As for the 2,500 lb weight rating, that is the pair of springs. What it means is that these…

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Answer 4

SumoSprings are the way to go over Timbrens as they do a much better job improving ride quality over the Timbrens which are known to be harsh. So for that you'd want the SumoSpring part #SS54VR and you'd be set. This is a great value but…

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Answer 5

While we don't have air bag suspension enhancement that fits your 2018 Coachmen Freelander 27 foot motorhome we do have SumoSprings kits that fit like the #SSR-206-54 which will give you the stiffness and stability you are looking for to improve…

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Answer 6

I have another option for you, but at this time there is not an air helper spring system confirmed to fit your 2018 Coachman Freelancer 27' built on the Chevrolet 4500 Van chassis. Instead I recommend adding the SumoSprings Solo Custom Helper…

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Answer 7

The factory hitch on your vehicle is integrated into the factory bumper mounting brackets, so removing the OEM hitch will result in losing your bumper. My contact at Curt tells me that he also had an early 2000's F-150, and he ended up having to…

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Answer 8

The Timbren Rear Suspension Enhancement System #TGMRC55 that you referenced have been confirmed to fit the 2008 Chevrolet Kodiak 5500. These jounce-style suspension enhancement springs will help provide a level ride for your RV if the rear of the…

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Answer 9

You are right about the look of the #JWM60A, though the reason we recommend it as a replacement for the AWM968 is that it is the model that technically replaced the AWM968 when it was discontinued in 2017. Having said that, there is an option, that…

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Answer 10

Typically with the weights you mentioned I would go with the SuperSprings Custom Suspension Stabilizer and Sway Control Kit #SSA22 which is the 2,500 lb. kit. But with your camper being a permanent mount, I would go with the SuperSprings Custom…

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Answer 11

The SuperSprings Suspension Stabilizer and Sway Control Kit #SSA13 is designed for your 2014 Ford F-250 without overload springs. A lockdown kit is required if the factory springs sit above the axle and the included poly spring pads are necessary.…

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Answer 12

The trailer hitch on the truck is what supports the extension. The extension is designed to fit in a 2-1/2 inch receiver (measuring on the inside) and the receiver part of the extension has a 2 inch receiver opening. The only thing you need for the…

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Recommended Suspension Enhancement for 2021 Chevrolet Express 4500 Cutaway Motorhome

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