Comparablity of Leveling Jacks

[crvil]

I have a 34 ft 2007 Holiday Rambler diesel pusher. One of my hydraulic leveling jacks has a deep scratch in it and needs to be replaced. My question is about the comparability of Power Gear leveling Jacks. My current jacks are rated at 9K. Could I replace one my current jacks with another Power Level jack rated at 12K. It's a 3 jack system so during the leveling process each jack is adjusted individually. The sizes of the 9K and possible 12K replacement are virtually identical. Logically I can see no problem can does anyone have any experience or knowledge they can share? Thanks

[Waiter21]

Mounting would be important along with spring type, internal or external. But also consider cylinder diameter and shaft length.

When I overhauled and made new parts for my "obsolete" jack, I came across this file. It includes a lot of info, including diameters, lengths, etc.

http://1999southwind.com/DOWNLOAD/Po...egOverhaul.pdf

A slightly larger diameter will give more lifting capability. Be cautions of longer shafts, you don't want to run the jacks out to their end stops and have one jack a couple inches higher than the other.

If you have two jacks in the back and one jack in the front, If you're replacing the front jack, a longer shaft really shouldn't be significant.

..

[Bigd9]

Why do it?



When we bought this coach one of the jack legs had a series of scratches and scrapes on the chrome part. They were so bad it leaked like a sieve, so I bought a new leg for ($800+-). When our friendly UPS driver delivered it, he asked me why I didn't take the old jack to a hydraulic shop to be rebuilt. I showed him the scratches and he said "Shoot, that's nothing. There is a shop in town that will repair and then re chrome the stem to like new condition." I told him "NOW YOU TELL ME!"
Here is a picture of mine: