Will The DeeMaxx Disc Brake Kit DE66AR Work For My 2022 Grand Design Momentum 5W Toy Hauler

Updated 03/09/2026 | Published 03/03/2026

Products Featured in This Question

DeeMaxx Disc Brake Kit w/ Actuator for Tandem Axle Trailers - 13" Hub/Rotor - 8 on 6-1/2 - 7K

(20)

$2312.50

Question:

I have a 22 Grand Design Momentum 351 with tandem axel. I am looking at the DE66AR drum to disk conversion kit but I want to make sure that I have the correct one ed. Can you verify? My rims are 17-1/2 x 6-3/4 Rim - 8 on 6-1/2

asked by: Mark M

Expert Reply:

Hey, Mark. Thanks for reaching out.

Yes, the DeeMaxx Disc Brake Kit with Actuator part # DE66AR would be the correct kit for your 5th wheel, especially since you have a 8 on 6-1/2" bolt pattern for your 17-1/2 wheels. This kit is designed for tandem axle setups, like yours, and includes everything needed for installation. You’ll definitely notice a big improvement in braking performance once it’s installed.

What toys do you load up in your Momentum?

expert reply by: Gwendolyn Y

DE66AR
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Mark M.

3/5/2026

Thank you for clarifying. I will get that kit ordered. We bought it to haul our Harley Davidson Road Glide

Gwendolyn Y.

3/5/2026

@MarkM Anytime, always happy to help. Also, sweet ride! This kit will definitely be worth it.

Kendal

3/6/2026

I’ve put the deemaxx disk brakes on my 2020 Montana 5th wheel about 1 year ago. It’s the best brake system I’ve ever had on a camper. If or when I trade my camper for a new one I will put deemaxx disk brakes on as soon as possible.

Gwendolyn Y.

3/9/2026

@Kendal That's awesome to hear! It's pretty cool to know what it's made such an impression on you, Kendal, that you don't want to run with any other brakes. Were the older brakes you had before electric drum or hydraulic drum brakes?

Kendal

3/9/2026

@GwendolynY I had electric drum brakes. Before I put the hydraulic disc brakes on. The disk brakes are so much better.

Gwendolyn Y.

3/9/2026

@Kendal I'm sure you saw a HUGE difference going from electric to disc. I'd say it most likely felt like a whole new trailer the first time you towed with it.