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hi guys, i have a rto 12513 in my 1979 359 pete and it has a abnormal whine when i split the high range gears. if i drive it as a 9 speed smooth as silk but just as soon as i touch the splitter button all hell breaks loose. i mean it sounds like its gettin ready to explode. any ideas?
hi guys, i have a rto 12513 in my 1979 359 pete and it has a abnormal whine when i split the high range gears. if i drive it as a 9 speed smooth as silk but just as soon as i touch the splitter button all hell breaks loose. i mean it sounds like its gettin ready to explode. any ideas?
sounds like counter shaft bearings in the aux section
i almost forgot to mention that it is only under acceleration, if i let off of it, its silent as it should be. gets progressively worse as i accelerate
sounds like counter shaft bearings in the aux section
I second 379's opinion, aux box problem on the rear section of the trans. Otherwise the noise would be there in the lower gears
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2000 Limited, 118K, 7.3L, 285 Cooper ATR's, super chips 1705 on tow/performance, Bilsteins, Isspro EGT/Boost/ Trans temp.
1997 4runner,5spd,TRD supercharged,Bilsteins,H&R coil springs front and rear
1968 roadrunner,383,4spd
1970 roadrunner,383,4spd,pistol grip,58k 0riginal miles
1970 Charger,383,4spd,pistol grip,my first car
sounds like counter shaft bearings in the aux section
Right, but like any big trans, you don't know what all has been damaged until it's torn down. Generally the longer you drive one after an abnormal noise is detected, the more spendy the parts lists gets.
Right, but like any big trans, you don't know what all has been damaged until it's torn down. Generally the longer you drive one after an abnormal noise is detected, the more spendy the parts lists gets.
What he said I don't know if you are aware but you can split the aux off the main with the trans still in the truck and the sooner the better before the main swallows some pieces and you get to do the whole trans right now you may get away with just a aux bearing kit
Wkxpress, I assume you're aware you're not supposed to pre-select over or direct with the splitter button? In other words you don't want to flip the button unless your ready to allow for a shift as soon as you flip it. If you flip the splitter button but keep your foot on the throttle and not allow a shift, there's constant pressure on the shift fork against it's spinning shift sleeve until a shift is accomplished. Not saying this is the cause of your problem but some guys aren't aware that it causes increased wear. This doesn't apply to your hi-lo range shift of the main box, they have an air lockout so nothing happens as far as a range shift until the shift lever goes through neutral then an air valve opens letting air to the shift mechanism.
hi guys, i have a rto 12513 in my 1979 359 pete and it has a abnormal whine when i split the high range gears. if i drive it as a 9 speed smooth as silk but just as soon as i touch the splitter button all hell breaks loose. i mean it sounds like its gettin ready to explode. any ideas?
It agree it is probably in the back box. Has the trans been run low on oil? The OD and counter shaft gears in the back box get starved for oil first. I don't know how much you know about the trans but the back box can be a little bit of a problem to get back together. A couple of long bolts with the head cut off can be used for dow pins to help reinstall the back box if you leave the main part in the truck.
A couple of long bolts with the head cut off can be used for dow pins to help reinstall the back box if you leave the main part in the truck.
Yessir, good idea. I still have a ginormous supply of pilot bolts I used on everything from transmissions to cyl heads. I always round the end on a bench grinder, then cut a slot with a hacksaw so they can be unscrewed with a screwdriver.
Yessir, good idea. I still have a ginormous supply of pilot bolts I used on everything from transmissions to cyl heads. I always round the end on a bench grinder, then cut a slot with a hacksaw so they can be unscrewed with a screwdriver.
IF it had not been for things like that, custom bent wrenches and extra deep sockets with pipe welded in between them I would have quit turning wrenches a long time ago.
I always keep a set of cheap flea market wrenches for when I need to engineer a new design.
Two pieces of flat bar with a bolt to hold them together on each side of a head bolt made a good liner press too didn't it.
Last edited by equipmentguy; 01-17-2010 at 01:39 PM.
Oh yeah, I had quite a few goodies like that. One of the handiest (go ahead and laugh) are the small diamond hard needles from inside 3208 Cat injectors, the plastic caps from new Detroit injectors (perfect fit on male air tool couplers (during leaf-cutter wasp season donch'a know), Eaton 2 speed rear end planetary brass pinion gear shafts make wonderful brass punches, and of course everyone's favorite for mechanical Cummins 335's, etc, injector and valve adjusting rocker locknut wrenches made out of the 855 Cummins push tubes---bent with a box end welded on one end (not that I'm showing my age of course).
But now I look at 'em but don't use 'em----RETIREMENT'S GREAT AND NOT OVERRATED ONE BIT!
hi guys, i have a rto 12513 in my 1979 359 pete and it has a abnormal whine when i split the high range gears. if i drive it as a 9 speed smooth as silk but just as soon as i touch the splitter button all hell breaks loose. i mean it sounds like its gettin ready to explode. any ideas?
Where have yall been????? Almost all 95, 125, and 14613's have the whine in the back box in overdrive. The aux countershafts or "dumbells' get a little wear on them and whine. Most Eaton re-mans whine the same way. Eaton got the whine to stop when they went to cone bearings on the countershafts in the RTLO series with the exception of the RTLO14613. I bought one of these brand new, and it whined from day one. Called the Eaton rep, and he told me the same thing. You want the whine to stop, upgrade to RTLO
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2005 F250 XLT Super Duty Crew 4WD. White/Silver. K&N intake. Hypertech programmer. No muffler. Stock everything else. Other trucks: 1979 Kenworth W900A, 1982 Kenworth Cabover (BJ and the Bear) 1997, 1998, and 2000 Kenworth W900's. All Caterpillar Power. 1979A model just got marine application 2-piece pistons, nozzles, and ATAAC. Sure is sweet!!! 500 to the ground, and no smoke!
Transporter and Operator of a Bauer Built Championship Unlimited Tractor Pulling Sled for the United Pullers of the Carolinas, Region IV affiliate of the National Tractor Pullers Association (NTPA), and damn proud of it!!!!
Where have yall been????? Almost all 95, 125, and 14613's have the whine in the back box in overdrive. The aux countershafts or "dumbells' get a little wear on them and whine. Most Eaton re-mans whine the same way. Eaton got the whine to stop when they went to cone bearings on the countershafts in the RTLO series with the exception of the RTLO14613. I bought one of these brand new, and it whined from day one. Called the Eaton rep, and he told me the same thing. You want the whine to stop, upgrade to RTLO
I think the "all hell breaks loose" and the "i mean it sounds like its gettin ready to explode" part of his post implies more than a whine. If it is just a small high pitched whine then it is normal.
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right now you may get away with just a aux bearing kit 
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