Skid plate

ChileanKJ · **Posted:** Wed Jan 14, 2009 2:07 pm

Now that my sliders are painted and installed, I will start making a skid plate for the transmission and tranfer case, but I would like to make just one for both, yesterday took the measures and i will plasma cut the plate and then twist 90° the borders to give more strength to the plate, but what do you think about the plate width should be 4, 5 or 6 mm? the complete plate will be 120cm x 40 cm thats about 47.2" x 15.7" and obviously the weight it's important and i have two heavy sliders already.

long_tall_texan · **Posted:** Wed Jan 14, 2009 2:24 pm

Plate thickness will all depend on what steel you use. I have used 4mm plate in construction equipmet design that was twice as strong and dent resistant than standard steel at 1/4" (6.35 mm). I would pay the extra for high strength steel and then go with thinner material to save weight.

jsc7002 · **Posted:** Wed Jan 14, 2009 2:30 pm

4mm 0.16" just a hair thicker than 1/8", which is similar to mopar
5mm 0.20" just a hair over 3/16", which is most aftermarket skids
6mm 0.24" not quite 1/4"

I would say 5mm, or 6 if you just really wanted to

ATXKJ · **Posted:** Wed Jan 14, 2009 3:05 pm

FYI - the 1/8"and the 3/16" skids bend
the Superskid is 1/4" with reinforcements - I don't think anyone's bent one of them yet

ChileanKJ · **Posted:** Wed Jan 14, 2009 9:01 pm

I will ask for the diferent type of metals and what is better for my application and based on the price I will decide what I do, the sliders are 6 mm with a 3 mm exterior round tube.

thanks

long_tall_texan · **Posted:** Wed Jan 14, 2009 9:05 pm

You would be surprised how hard it is to bend/dent some of the high strength steels in 4 mm. You can even get by with 3 mm in some of the exotic steels. We did a lot of large object drop testing in belly pans of construction equipment and I was shocked how well it held up.

tjkj2002 · **Posted:** Wed Jan 14, 2009 10:36 pm

ATXKJ wrote:

FYI - the 1/8"and the 3/16" skids bend
the Superskid is 1/4" with reinforcements - I don't think anyone's bent one of them yet

I've personally seen 3 bent SuperSkids,one was really bent :shock:

.

HoppedUpOnGoofballs · **Joined:** Sat Nov 29, 2008 10:36 pm **Posts:** 203

tjkj2002 wrote:

ATXKJ wrote:

FYI - the 1/8"and the 3/16" skids bend
the Superskid is 1/4" with reinforcements - I don't think anyone's bent one of them yet

I've personally seen 3 bent SuperSkids,one was really bent :shock:

.

Those mall parking lots can get pretty crazy at times.. :lol:

ATXKJ · **Posted:** Thu Jan 15, 2009 8:22 pm

DaveKJ02's (mine looked like that but no pix)

a Skid row - Clint posted a while back

ChileanKJ · **Posted:** Thu Jan 15, 2009 11:26 pm

After seen this picture.. may be I will have to make it from side to side, and forget about the weight

ATXKJ · **Posted:** Fri Jan 16, 2009 8:53 am

The real issue is the unsupported length front to back - that's why the Superskid had the side supports
if tjkj has photos it would be interesting to see where they bent.

The 2 arms bolt to the 'frame rails' in the middle

unfortunately All-J's stopped making them

ChileanKJ · **Posted:** Fri Jan 16, 2009 3:22 pm

I will get back to the drawing board and make a new design, I have the next week off to work on this.

thanks

tjkj2002 · **Posted:** Fri Jan 16, 2009 10:08 pm

ATXKJ wrote:

The real issue is the unsupported length front to back - that's why the Superskid had the side supports
if tjkj has photos it would be interesting to see where they bent.

The 2 arms bolt to the 'frame rails' in the middle

unfortunately All-J's stopped making them

No pics,2 had slight bows in them,not bad but enough to see.The 3rd was MUTT's that Durangotang has now and it's pretty bent :shock:

.He might be able to post a pic of it.

durangotang · **Posted:** Fri Jan 16, 2009 11:34 pm

Troy and I made a feeble effort to straighten out my bent superskid in Moab. Turns out two drunk guys jumping on it doesn't do much :lol:

Hint: It's supposed to be flat :roll:

ATXKJ · **Posted:** Sat Jan 17, 2009 9:49 am

Try turning it upside down and driving on it (maybe with appropriate wooden blocks to limit movement)
(and maybe a heavier truck)

is that the tail end where it tapers down to bolt to the crossmember?

JeepinMaxx · **Posted:** Sat Jan 17, 2009 11:45 am

The skids look like this at the end of every wheeling season. Once I used a 30 ton shop press to straighten it out. Now just a wooden work bench a couple of 2x4s and a sledge hammer and some free stress relief / anger management :wink:

makes it straight again...

ChileanKJ · **Posted:** Sat Jan 17, 2009 2:06 pm

Ok, after hours on the drawing board and more hours in the high tech cad/cam stations :lol:

went to pirates and take one of their designs, today bought the steel at a local second hand steel seller (I don't know how you call it but you get the idea o don't?) for 7 bucks to start this new skid. I will let you know how it turns out.

I had a Lasik on both eyes one week ago so my soldering time could be shorter.

thanks for the info.

jsc7002 · **Posted:** Sat Jan 17, 2009 2:07 pm

sweet! be sure to take some pics!

Signcutter21 · **Posted:** Sat Jan 17, 2009 9:40 pm

tjkj2002 wrote:

ATXKJ wrote:

FYI - the 1/8"and the 3/16" skids bend
the Superskid is 1/4" with reinforcements - I don't think anyone's bent one of them yet

I've personally seen 3 bent SuperSkids,one was really bent :shock:

.

Troy, was one mine? If not count 1 more. My skid row i had first (being they were the only ones to make one in the "begining" ) bent almost as bad as the pic of Clints. The SSI has handled quite a beating that i've put it through though. Wish they still made em, i'd think about ordering another one, rather than fight with this one every time i go to replace it.
later
mike

ChileanKJ · **Posted:** Sun Feb 08, 2009 2:19 pm

This is my transmision skid plate design, it's based on two 5mm tubes and a 5 mm plate, I just finish the soldering job I'm not professional solder and it is only arc but I think it will hold up very well, I will test for fit as solder some times twist things, and then go for painting, I think this is going to be far more hard to bent than only plate skids.

I will work on the transfer case skid to mate with this one.

Skid plate

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