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setup for 26,000gcvw on a 6.5

Have a friend that works with Shelly & Sands (paving) said he saw you with load of pipe haulin ass this week.. :thumbsup:
 
Yeah it was on I70.

He's been trying to Con me into running his Kauffman 3 car wedge to Manheim, PA. Lol. He bought somebody out that was hauling cars there a while back (MC number too). A C3500 dmax ECLB DRW flatbed and that wedge.
 
rolled 128,XXX coming home from boston yesterday.. bought the truck at 87,000 been draggin the trailer 95% of the time ever since.. time for tires on the truck.
 
yes 225/70/19.5 putting cooper RM170 on the front and RM253 on the rear.. if i had caught/relise the tire pressure probably gotten more life out of the tires
 
gonna try and find some Alcoas for weight savings?

also, I have been meaning to ask, has the Dana 80 been keeping its cool? IIRC, the bearing angles arent quite right and the 80's build more heat than most rear ends. on a side note, the manual says to change the synthetic every 30K miles, so GM must have been aware of the issue. the early HDs that apparently didnt come with syn. for factory fill said to change the dino-oil every 3K miles. good luck on that ever happening.

have you been happy with the Kauffman gooseneck? what did it come with for axles?

glad to hear she is doing good for you, safe and profitable travels to you!
 
havent really had the time to search for the 10x7.25 19.5s
havent any problems with the rear.. gets warm but not to the point you cant hold your hand to for an extended period of time.. been meaning to swap in a mag-tech cover and full synthetic.. along with a true trac diff.. 550 for a 35 spline 630 for a 37spline

the trailer... been a learnign experincce.. with the 31.5" GN hieght stock setup had the next fully extended.. common is 36" brother had a kaufmen never had a problem but runs dodges and they are about 38"..
the problem.. the traielr would buck F/R like a wagon empty/loaded didnt matter...ended up ripping bout 1/2" of the bottom side welds on the neck.. coming home last friday/satuday.. called kaufmen monday sent them picks of the load and cracks.
they said get it down there and they would fix it no cost to me.. also had a couple cracks starting at each end of the running gear subframe. the added 5"x.375" plate from neck to dove tail and diamond plate each end of the I beam where the subframe mounted... before 6,000lb dead center pin/tandems with flex the bed about 5/8" no nothing noticable..
this is the second load after they did the mods, each chipper is 5,000lb. the white one is 6" forward of center on the tires.. and man did they effin bounce!!!! one was either in rebound or bounce mode the entire time.. but no noticable trailer flex going down the road.
http://sphotos-f.ak.fbcdn.net/hphotos-ak-snc7/318985_4321917119695_673932425_n.jpg
neck
before
http://sphotos-g.ak.fbcdn.net/hphotos-ak-ash3/523939_3957165481132_1777954359_n.jpg
after
http://sphotos-a.ak.fbcdn.net/hphotos-ak-ash4/400782_4314096404182_726325863_n.jpg
axles
where do i start.. they are lipperts.. nothing actually wrong with that.. its what kaufmen ordered which is basicly a 7k/8k hybrid.. 3" axle tube with .5" wall 8k bearings 2580/2475 and 12x2 brakes. dexter did a simalar thing with their 7200/7500lb axles but use then 1425A outer bearing which is identical to the 2475 with one difference, the rollers on then 2475 are longer and larger then the 1425A. top it of i have 5/8 flange nuts means specail order or uder the 9/16 with dually accron centric hub ring.. load bearing wise they are legit.. lost a dust cap (PS/R) and killed and outer bearing with 9,000lb of brick on.. lipped home 350 miles on the other 3 tires thats 6400lb on one tire/spindle (215/75/17.5 4600lb) are about 45mph stopping every 100 miles to cool the tire... didnt bend the axle or spindle did damage the bearing of the (PS/F) swaped bearings and no problems.
dexter 8k is a 3.5" .250 axle with 12.25x3.375 brakes same bearings and the lippert axles i have.
the dexter are about 150lb heavier then lippert mainly backing plate and hub/drum weight.. the thing i dislike about the 12x2 is they are good for about 45,000 mile or ever 5-6 months.. but they are adequent for 8k and coupled with the 14" dual piston F/R on the truck i have no stoppign problems.. after talking with kaufmen IF you ask for brand X axles they will build it as such but they dont advertise that part well enough...
i basicly have their tandem 10k trailer with 8k axles under it.. other then not specifing 7 wire harness (for aux flood lighting) and have by non wedge ramps fold flat.
another thing to note.. grease hubs recomend repacking every 10-12k.. or for me every oil change (dmax 10k) gets old doing it every 5-6 weeks..
oil bath (7k and up have options for it) and torqflex would be the axles on next trailer.. or when i rebuild these.. which will be early spring next year. probble drop dexter 8k oil bath to have the longer brake life.. 400-500.00 every 5-6 months for backing plates hub/drum or 1500.00 every 18-20 months for the deter 8k with bigger brakes and drums. im avg 2000 mile a week or 100k a year.. dexter 8k are about 1100 for drop in replacement for what i have.. kaufmen sells thease for about 700.00
 
Would you be better off getting a different trailer next Spring Adam? Rather than pouring a bunch of $ into new axles. If you could get enough for this one to make it worthwhile has to factor in I suppose.
 
Do you think the gooseneck is flexing then the bucking F/R fight starts.

I have Superior GN (made in GA) and my truck bucks F/R too. Trailer has (2) 7K axles. I think its rated for about 11,400 ish lbs of cargo. Bucks unloaded worse iirc I haven't had it loaded heavy on tongue weight in a long time. Its not that heavy duty of a trailer. The gooseneck shaft is square and I am extended some but not max extension I don't think. I think its axle wrap and worn out shackle bushing combined with old age in general (I think my IP surges a bit) that makes the buck worse than it should be. I have to clutch and nail throttle on acceleration to get out of buck. Typically bucks the worst in 3rd gear (NV4500 I have 3.73 gear and 285/75 truck tires).

I know you have much beefier rear springs but have you ever thought about the roadmaster set up to reduce leaf/shackle movement? Think that might help?
 
Kaufman trailers seem pretty good to me. But as an FYI here is a trailer builder that makes a variety of stuff and appear to be good quality: McElrath Trailers (http://www.mcelrathtrailers.com/index.htm - I am sure there are several others and Kaufman could customize easily too again just an FYI).

I worked at Mclaughlin Inc. = Mightymole, a company that made vacuum excavators (Mightymole.com for some pics of different trailer and rig combos). Short story long McElrath made all the trailers while I was there. We'd design/specify them for our skids then we'd bolt our skidded equipment to the trailer. Sometimes McElrath would advise for changes. But basically they were licensed and insured to build trailers some DOT thing which took the liability of trailer off our company. I saw several different axle trailer combo's for some heavy duty tag along pintle and 2-5/8 ball applications.
 
GN.jpgMy trailer has shorter gussets but does have bolts to take out any play in neck extension adustment. Bolts clamp down on inner extension on back and far side. Basically a ~3/4 bolt like set screw mechanism.

I'd think any appreciable buck you feel could be axle wrap or leaf/shackle flex. Mine is pretty bad in 3rd gear but not so bad in other gears.

Are you feeling the buck more at speed cruising or when????
 
for what people pay for trailers, looking into buying a new one may not be the end of the world.

also, what ratio is your rear end? 4.63 or 5.13?

I think I might go tour the Kaufman factory (not too far from here) and see what they can do for an 8K axled (hopefully still stamped for 14K) 30 foot straight flat tail unit. there has been a few occasions our 25 foot unit has ran out of room, and I bet 5 feet more wouldnt weigh tons more.
 
Would you be better off getting a different trailer next Spring Adam? Rather than pouring a bunch of $ into new axles. If you could get enough for this one to make it worthwhile has to factor in I suppose.
1100ea per dexter 8k or 7500-10k for a new trailer? honestly its service life of almost 45,000 mile right now.. the frame modes where free to me. and the trailer is defently better!
Do you think the gooseneck is flexing then the bucking F/R fight starts.

I have Superior GN (made in GA) and my truck bucks F/R too. Trailer has (2) 7K axles. I think its rated for about 11,400 ish lbs of cargo. Bucks unloaded worse iirc I haven't had it loaded heavy on tongue weight in a long time. Its not that heavy duty of a trailer. The gooseneck shaft is square and I am extended some but not max extension I don't think. I think its axle wrap and worn out shackle bushing combined with old age in general (I think my IP surges a bit) that makes the buck worse than it should be. I have to clutch and nail throttle on acceleration to get out of buck. Typically bucks the worst in 3rd gear (NV4500 I have 3.73 gear and 285/75 truck tires).

I know you have much beefier rear springs but have you ever thought about the roadmaster set up to reduce leaf/shackle movement? Think that might help?
what is your GN pin height? me more then then extention was flexing in then coupler the entire trailer it design to flex a little. but not like that..
for what people pay for trailers, looking into buying a new one may not be the end of the world.

also, what ratio is your rear end? 4.63 or 5.13?

I think I might go tour the Kaufman factory (not too far from here) and see what they can do for an 8K axled (hopefully still stamped for 14K) 30 foot straight flat tail unit. there has been a few occasions our 25 foot unit has ran out of room, and I bet 5 feet more wouldnt weigh tons more.
i still have 4.63 gears.. going to be buy and detroit true trac for it soon just havent bothered to find if i have 35 or 37 spline axles.
i got their 14k HD had them adjust the rating for 19k GVWR 16k axle plus 3k on the pin.. hind sight should have them say 21k 5k/16k
http://www.kaufmantrailers.com/heav...eavy-Duty-Gooseneck-Trailer---DELUXE-p19.html
mine weight 6400lb before with 26+4 popup dove tail. i would ask for a 7 wire harnes (aux circut for lights etc) and set the ramps to fold flat or 90*. also i would have tem put a turn light up by the foot step as well.. then oem is just in front of the tandems... unless you have a bed a car cant see your turn signal once past the tandems..
 
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