For my phase II mod, by clamping each channel in a drill press, I was able to easily drift a tight-fitting clearance hole (for the cross-tube) right up against the underside of the channel's top. These tubes were then welded both @ their ends (where they come up against the inside of the channel wall) & also where they pass through the channels' inner walls. It takes all the cantilever (bending) load off the bolts (bolts don't like to bend), leaving them w/ simple shear loads, for which they are well oversize. This virtually eliminates all tendency for the channels to "tip" downward, as the load is applied, and keeps them in plane.

 

I put the jack back to its original position for the Ultra. But without the support, the back end was still way lower than the front. Then I used my other Sears red jack without any mods and it worked good as usual.
Tarheelrdr

 

thanks for the info.. great mod.. i just did it and it works perfect. nice and stable..

 

Doping this tomorrow

 

Great info. thanks!

 

I am definitely going to steal this one from you. Ive had that jack for years and am ashamed that my bitching has never evolved into something like this. thanks Vic

 

Okay, the first video is not loading in the thread. Where is the info on the jack mod?

 

You can search youtube for my profile. My name on there is scvic2006

I'd also suggest clearing your temp internet files, cookies, etc and reloading the page.

 

LOL- Thanks!

 

Awesome video! Thanks man!!