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If one was like that, then I would replace them all. A shock failing is one thing, but if one of those fails at the wrong time could possibly make for a really bad day.

https://www.crofttrailer.com/1829-hydro-act-actuator-shaft/ They have them in stock.

The TM has the shock replacement instructions. Very easy.

With the spring that’s already in there, would it be too much force and not activate brakes as it should?

Did you ever get a replacement shock?

Stumbled across it on eBay while looking for a new shock. Was getting ready to order a new shock from Croft and wanted to do one more search. I searched using “surge brake” and there it was. It wasn’t listed as for the M101A2/3. Very happy as this is a $400+ Unit. I got it for less than...

I lucked out and found a NOS assembly for not much more than a new shock by itself. It arrived today. Will install next week on tan M101A2 Good timing as a new well house is heavier than it looks.

Ok Good to know

I’ve read here on SS of guys doing that backing up their driveway, not knowing the brakes needed to be locked out. Some even kept trying until parts broke.

Dexter FreeBack brakes. Easy swap and hassle free. Biggest pain was putting trailer on jacks. Dexter makes great stuff and is the OEM Military supplier for some of the M101A2/3 parts.

Off roading or 4 wheeling? I’ve read it’s mostly personal preference on whether to disable them or not. If the trailer is loaded at all and you try to back up an incline, the brakes will activate. Always carry a pin or bolt to lock them out. Dexter makes a surge brake unit called FreeBack...

The hole just forward of my lockout pin.

It’s for overall hardness of the steel is my understanding. Its heat treated differently. The shear strength is improved along with the tensile strength. Grade 10 isn’t usually carried by the box stores but that’s a bit overkill anyway.

Grade 5 isn’t strong enough if trailers heavy. Others have done that and it bent the bolt. Making removal a total nightmare. Several threads about it.

Croft trailer has the least expensive shock. Its an OEM one from Hydro-Act. https://www.crofttrailer.com/1844-2-hydro-act-actuator-damper-shock/ Agree on what others are saying. Your shock has failed. You can insert a 3/8”x4” grade 8 bolt in the brake lockout hole so you can still use the...