KYRenegade
Posts: 16
Joined: 10/29/2007
Status: offline
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Hey Folks, was reading about this mod and it looks great! I have an 07 Renegade and was thinking about strengthening the frame.
Not to bash this post at all but please read the attached info about modern day CCA treated lumber.
I am a construction Superintendent by trade and have had to attend alot of continuing education on building materials. I have seen new type treated ACQ or CCA eat a 1/2" dia shank lag bolt in half in about a years time. The board being covered in grease may prevent this. Hot dipped electro galvanized metal is the only thing this stuff will not corrode. I may be wrong about all this just want people to be aware. Maybe others could do some searching to make sure the treated is safe to use.
Use corrosion-resistant nails and joist hangers Unfortunately, boosting the copper content in lumber not only makes the new pressure-treated wood more expensive than the old, but it also makes the new stuff significantly more corrosive -- 5 times more to common steel, according to American Wood Preservers Association (AWPA) test results.
Most people already know that they should use corrosion-resistant nails, screws, and connectors when they're building with pressure-treated wood. But now the stakes are higher. Due to the high risk of galvanic reaction between the copper-impregnated wood and any dissimilar metals, fasteners and flashings should be stainless steel and copper whenever possible. At the very least, you need to use better grades of galvanized fasteners. Unfortunately, the fastener grades aren't always marked on the boxes of nails and screws.
Electrogalvanized stock is rated with a class scale that ranges from 5 to 110. Hot-dipped galvanization ratings are based on the actual weight of the coating. For example, a G-60 rating means that there's 0.60 oz. of zinc per sq. ft. of metal.
The G-60 and G-90 hot-dipped coatings are what we've been using until now. But engineers suggest stepping up to the heavier G-185 coatings for hot-dipped galvanized products, and they recommend class ratings of 40 or above when using electrogalvanized fasteners, such as expansion bolts.
Currently, G-185 is the best galvanized protection that you can buy. Simpson's ZMax line and USP Structural Connectors' Triple Zinc line both are rated at G-185. As for nails and screws, many of the composite coatings that are currently available are still good for the new treatments (see www.osmose.comto read about fastener recommendations), but you should verify this by carefully reading the label.
Perhaps the most important point to keep in mind relating to copper-based wood treatments and galvanic corrosion is to avoid aluminum flashings altogether. Aluminum corrodes quickly in the presence of high copper concentrations.
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ORIGINAL: swamp bomb
So i just finished giving the frame some wood here are the pics.
this is the rearend when you start
Thumbnail Image
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07 Renegade, Elka's, Muzzy Full Ti pipe, PRP Stabilizer, Beadlocks, Dalton, Richochet, H2O gauge, Cycra Bark Busters
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RE: FRAME MOD P.T. BOARD - 
