Ezrider Posted January 1, 2015 Share Posted January 1, 2015 i need a tall 5th. my 5th wheel slider is the style with a L bracket mounted to the fame and then the 5th wheel slider bolts to that flat with the top flange of the frame. i was thinking of buying some 1/4 wall rectangular tubing drilling out the bolt holes to match the slider and bolting it in under the slider. any reason not to do this? i would probably box the ends as well to keep the dirt out of the tubing. i could also drill out the holes bigger and weld in 5/8's ID round tubing in the bolt holes to make it stronger yet but i don't think that would be necessary. Quote Link to comment https://www.bigmacktrucks.com/topic/38275-raising-5th-wheel/ Share on other sites More sharing options...
blackdog2 Posted January 1, 2015 Share Posted January 1, 2015 Change the legs 1/4 way to small 1/2 Quote Ed Link to comment https://www.bigmacktrucks.com/topic/38275-raising-5th-wheel/#findComment-272723 Share on other sites More sharing options...
Ezrider Posted January 1, 2015 Author Share Posted January 1, 2015 just in case anyone is having trouble with my discription Quote Link to comment https://www.bigmacktrucks.com/topic/38275-raising-5th-wheel/#findComment-272724 Share on other sites More sharing options...
Ezrider Posted January 1, 2015 Author Share Posted January 1, 2015 im not opposed to half inch wall as long as its available, i have bought 1/4 wall in a similar size tubing for another project so i know that is available. 1/2 would take more time on the drill press and more drill bits than 1/4. i haven't measured it but it seems like the factory L bracket is 1/4 or 3/8 so i think 1/2 would probably be overkill.as far as replacing the legs it looks like id have to replace the whole slider to get taller legs. Quote Link to comment https://www.bigmacktrucks.com/topic/38275-raising-5th-wheel/#findComment-272728 Share on other sites More sharing options...
RowdyRebel Posted January 1, 2015 Share Posted January 1, 2015 Considering my frame is only 1/4", it isn't beyond the scope of reality that the 1/4" wall tubing would suffice. You just have to make sure the strength of the alloy is going to be up to the job. In theory, it could be 1/2 as strong as the frame steel and still be more than strong enough because it is doubled up (square tube as opposed to C channel) and it ONLY supports the weight carried by the 5th wheel, not all of the stresses the frame rail sees. 1/2" wall might be overkill. So just how much are you trying to raise the 5th wheel? Quote When approaching a 4-way stop, the vehicle with the biggest tires has the right of way! Link to comment https://www.bigmacktrucks.com/topic/38275-raising-5th-wheel/#findComment-272733 Share on other sites More sharing options...
Phase 1 Posted January 1, 2015 Share Posted January 1, 2015 Another option would be two peices of square tubing instead of one rectangular. Then I think 1/4 would be enough. And probably easier to find. Quote Link to comment https://www.bigmacktrucks.com/topic/38275-raising-5th-wheel/#findComment-272735 Share on other sites More sharing options...
Ezrider Posted January 1, 2015 Author Share Posted January 1, 2015 i need to put a tape measure to it to figure out exactly how much to come up. somewhere between 2-5 inches. my problem is with the low 5th wheel and 11'r 24's on the truck then my belly dump has a pivot on the 5th wheel to help keep even ground pressure on your drives in uneven terrain the trailer fenders can touch the tires. then on my side dump if you have the bucket tipped all the way over you can hit the drives as well plus i want to put full fenders on the truck so as it will be impossible to do that as you will ether hit the fenders with the trailers or hit the fenders with the tires and tear them up. so i need both adequate clearance for tire travel plus adequate clearance from the top ass well. i found a old post on ttr where someone had these risers 1/2" plate top and bottom 4 inch tube but didn't say what the wall thickness was on the tube. i think i might like this idea a bit better than mine as you would still use short bolts and would probably be less likely to sheer the bolts. Quote Link to comment https://www.bigmacktrucks.com/topic/38275-raising-5th-wheel/#findComment-272736 Share on other sites More sharing options...
TeamsterGrrrl Posted January 1, 2015 Share Posted January 1, 2015 The 5th wheel manufacturers make 5th wheel brackets of varying heights, might want to check them out before you DIY it. Quote Link to comment https://www.bigmacktrucks.com/topic/38275-raising-5th-wheel/#findComment-272744 Share on other sites More sharing options...
gearhead204 Posted January 1, 2015 Share Posted January 1, 2015 EZ, the trunion fixture that the 5 wheel pins to is also available in different heights we use to change out the one on our lowboy truck when moving certain loads to stay under height it seams like it was a 3" difference. We just cut the welds (on the Plate stop ) at the end of the slide plate and pulled the two pivot pins to the 5 wheel and removed the plate, then unlock slide and remove slide assy. out the back unpin the air cyl. and change out fixtures. We made heaver stops to replace the ones that we cut the welds on and then drilled and bolted them on with 3 ea. 5/8 bolts per side. So check your pedestal / trunion height to see if you have a low mount if so this may be a easy fix. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/38275-raising-5th-wheel/#findComment-272754 Share on other sites More sharing options...
rsb502 Posted January 2, 2015 Share Posted January 2, 2015 I've seen rectangle. 025 wall tubing used to do this before. I'm guessing your truck didn't come with 11r24.5's so you've filled in some gap there. Make sure you can't use a taller stand first and if not the tube will work, don't get too carried away just enough to work. Quote "Any Society that would give up a little LIBERTY to gain a little SECURITY will Deserve Neither and LOSE BOTH" -Benjamin Franklin"If your gonna be STUPID, you gotta be TOUGH" "You cant always get what you want, but if you try sometimes you get what you need" Link to comment https://www.bigmacktrucks.com/topic/38275-raising-5th-wheel/#findComment-272809 Share on other sites More sharing options...
Ezrider Posted January 2, 2015 Author Share Posted January 2, 2015 it left the factory with low pro 24 tires Quote Link to comment https://www.bigmacktrucks.com/topic/38275-raising-5th-wheel/#findComment-272840 Share on other sites More sharing options...
rsb502 Posted January 3, 2015 Share Posted January 3, 2015 That's only 2" overall so 1" clearance Quote "Any Society that would give up a little LIBERTY to gain a little SECURITY will Deserve Neither and LOSE BOTH" -Benjamin Franklin"If your gonna be STUPID, you gotta be TOUGH" "You cant always get what you want, but if you try sometimes you get what you need" Link to comment https://www.bigmacktrucks.com/topic/38275-raising-5th-wheel/#findComment-273028 Share on other sites More sharing options...
rsb502 Posted January 3, 2015 Share Posted January 3, 2015 Do you have the stand set up so you can block the 5th wheel when pulling your dump, having both pivots ain't great. Quote "Any Society that would give up a little LIBERTY to gain a little SECURITY will Deserve Neither and LOSE BOTH" -Benjamin Franklin"If your gonna be STUPID, you gotta be TOUGH" "You cant always get what you want, but if you try sometimes you get what you need" Link to comment https://www.bigmacktrucks.com/topic/38275-raising-5th-wheel/#findComment-273029 Share on other sites More sharing options...
Charlie Hatfield Posted January 3, 2015 Share Posted January 3, 2015 What brand and model is your 5th wheel? Manufactures make different heights of legs for different applications. It may be cheaper and quicker to get a different set, plus you wouldn't have a liability factor. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/38275-raising-5th-wheel/#findComment-273039 Share on other sites More sharing options...
Ezrider Posted January 3, 2015 Author Share Posted January 3, 2015 no i dont have anything to block my 5th. on the belly dump the 5th pivot front to back and the kingpin side on the trailer pivots side to side. never had a issue without having blocks. on the side dump there is no pivot on the trailer side the trailer frame stays flat other than some weight transfer to the side can flex things a bit but the tub tips to the side and the clearance between what would normally be the top corner of the trailer and the drive tires can be a bit of a issue when you have to turn while dumping or dump at a angle. im not sure exactly what i got for a 5th wheel setup so if someone can identify it for me i do plan to look into taller legs first. Quote Link to comment https://www.bigmacktrucks.com/topic/38275-raising-5th-wheel/#findComment-273054 Share on other sites More sharing options...
gearhead204 Posted January 4, 2015 Share Posted January 4, 2015 that appears to be a Holland if you scrape the grease in the area just up from the king pin hole it should say Holland. and you have a low mount pedestal I would say by the photos so a taller ped. should fix the issue! Quote Link to comment https://www.bigmacktrucks.com/topic/38275-raising-5th-wheel/#findComment-273059 Share on other sites More sharing options...
farmer52 Posted January 4, 2015 Share Posted January 4, 2015 I agree with Rob, looks like a Holland. There should be a tag on the left side near the rear with the name, model, etc. In the last picture on the far right side looks like the tag. Might be a FW35.Holland web site...http://ww1.safholland.us/sites/usa/en-US/products/fifthwheels/Pages/default.aspx Quote Ken PRR Country and Charter member of the "Mack Pack" Link to comment https://www.bigmacktrucks.com/topic/38275-raising-5th-wheel/#findComment-273067 Share on other sites More sharing options...
rsb502 Posted January 4, 2015 Share Posted January 4, 2015 Yeah I've seen taller legs on that style 5th wheel, I think you've got a 3" and they make two taller if I remember right. I wasn't thinking about bottom dump I was thinking and dump pivot so no worries there. Quote "Any Society that would give up a little LIBERTY to gain a little SECURITY will Deserve Neither and LOSE BOTH" -Benjamin Franklin"If your gonna be STUPID, you gotta be TOUGH" "You cant always get what you want, but if you try sometimes you get what you need" Link to comment https://www.bigmacktrucks.com/topic/38275-raising-5th-wheel/#findComment-273082 Share on other sites More sharing options...
Ezrider Posted January 5, 2015 Author Share Posted January 5, 2015 looks like fw-35 don't know if i need any of the other numbers but i got pictures of them if i need them going to check on new legs tomorrow 2 Quote Link to comment https://www.bigmacktrucks.com/topic/38275-raising-5th-wheel/#findComment-273223 Share on other sites More sharing options...
Ezrider Posted January 6, 2015 Author Share Posted January 6, 2015 well i found myself with a simple math question todaynew legs cheapest place $975 highest $12002 pieces of 3/8 wall 6x3 3/8th wall tubing $175 Quote Link to comment https://www.bigmacktrucks.com/topic/38275-raising-5th-wheel/#findComment-273330 Share on other sites More sharing options...
RowdyRebel Posted January 6, 2015 Share Posted January 6, 2015 3/8" ought to work just fine for you. Quote When approaching a 4-way stop, the vehicle with the biggest tires has the right of way! Link to comment https://www.bigmacktrucks.com/topic/38275-raising-5th-wheel/#findComment-273356 Share on other sites More sharing options...
gearhead204 Posted January 6, 2015 Share Posted January 6, 2015 that out to fix it ! the last 5th wheel I needed I got at a farm sale for $ 5.00 seemed no one else needed one that day ! nice Holland air slide with long runners SCORE ! Quote Link to comment https://www.bigmacktrucks.com/topic/38275-raising-5th-wheel/#findComment-273366 Share on other sites More sharing options...
Ezrider Posted January 7, 2015 Author Share Posted January 7, 2015 all done but some bolts and paint 2 Quote Link to comment https://www.bigmacktrucks.com/topic/38275-raising-5th-wheel/#findComment-273436 Share on other sites More sharing options...
Ezrider Posted January 8, 2015 Author Share Posted January 8, 2015 all done 1 Quote Link to comment https://www.bigmacktrucks.com/topic/38275-raising-5th-wheel/#findComment-273606 Share on other sites More sharing options...
thomastractorsvc Posted January 8, 2015 Share Posted January 8, 2015 Looks like that will work just fine. On my R I replaced the 5th wheel and redid all the mount brackets and bolts I used 3/8th angle 3x4 it was not to bad of a job getting the frame blots drilled but I had my neighbor use his milling machine to cut the slots he has way more patience when it comes to layout than I do Quote Robert"I reject your reality and substitute my own." Link to comment https://www.bigmacktrucks.com/topic/38275-raising-5th-wheel/#findComment-273613 Share on other sites More sharing options...
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