Should I Replace the Entire Axle or Just the Damaged Spindle on My 2021 Grand Design 2400BH?  

Question:

Expert Reply:

Hello Adam,

Thanks for writing in.

Yes, replacing just the spindle would require a skilled welder, and it needs to be positioned precisely, which can get pretty pricey.

If it were me, I would replace the entire axle. The Lippert Trailer Axle # LC288NV matches your 86-1/2" hub face and 68-1/2" spring center measurements. We only carry this size as a complete kit, so it comes with new hubs, brakes, and leaf springs. The nice thing is that you can save any extra parts for when you need them down the road. You will just want to confirm that you have a 5,200 lb axle, a 6 on 5-1/2" wheel bolt pattern, and that your leaf springs measure 25-1/4" from eye to eye with the trailer unloaded.

If you can find a reasonably priced welder, replacing just the spindle may be another option. We have the #42 Spindle # TRU57FR and the Easy Grease Hub and Drum Assembly # AKHD-655-6-EZ-K.

The issue with the etrailer axle you were looking at is that the spring centers are 71-1/2". Normally, I would suggest welding on new spring seats, but the existing ones are too close to where the new ones would need to go. I wouldn't suggest cutting them off either, since even a small nick in the axle tube could compromise it. You also can't just flip the axle over because you need to keep the camber, which is the slight bend in the axle, facing up.

I know that's a lot to consider, but I think replacing the complete axle would be your easiest route, especially if you're doing the work yourself. You also mentioned an RV tech, I am not sure if you already have one you trust, but I also attached our Dealer Locator if you want to see who we have in your area.

How did you get the camper back home after this happened, or did you not notice it until you were home?

expert reply by: Kate F

0

Hutch

10/29/2026

Adam, I have a 2021 Heartland Pioneer and had the same problem. I ended up getting 2 new axles but upgraded to 5200 LB axles. The original Dexter 4400 LBs had 3500 LB spindles / bearings (1750 LBs per side) with a camper GVWR of 9000...the math was clear. I ordered the axle through E-Trailer and ordered the new bearings, races, brakes (shoe and mount assembly), and hubs from Libra Trailer Parts (sorry E-trailer, they were cheaper). I hand packed the hubs with grease, set initial bearing torque, and drove 150 miles. Quick check on bearing torque and few pumps of grease and I have had ZERO concerns. The spindles bent due to overloaded stress when backing into spots and tight turns. 7500 LB normal weight on spindles made for 1750 LBs (4 Tires * 1750 Spindles = 7000 LB capacity) was a disaster from the start (thank you Camping World), I learned my lesson the hard way.

Hutch

10/29/2026

For reference: Part Number - e45GR, $245.84. I took the axles to my local machine shop and had them cut the springs then mount them on top (same structural integrity). Converts a under-slung axles to over-top axle.

Josh

10/29/2026

I had a similar issue and welded new perches on this one to make sure everything was properly aligned. Then I reused my old hubs and brakes with New timken bearings. I also suggest taking a close look at the rest of the suspension to make sure everything is moving properly and not worn out, I had to rebuild everything on my 2018 coachman 320BHDS with new trunions and grease able bushings.