Wheel Nut:
The Eaton Twin Splitter is not a crash box, it is a constant mesh box based on the Fuller RT 9513 series.
Whilst a syncromesh box is also constant mesh, people wrongly use the term crash box for the latter
Probably because the term sliding mesh got lost somewhere in history which is the right way to differentiate constant mesh and so called ‘crash’ but although a synchromesh is also a constant mesh box the addition of synchronisers makes it a synchromesh box not a constant mesh box in regards to differentiating the two.If not a fuller would have had to have been called an unsynchronised constant mesh box and the eco split synchromesh (pile of zb bag of bolts) would have been called a synchronised constant mesh box which is a lot more words to say the same thing described by the single word synchromesh.( Unless the description includes that 'pile of zb bag of bolts) ?. .
Synchromesh is for useless drivers like this one while the twin split was for those lazy zb’s for who using a gearlever and a clutch is too much like hard work
I have a scania 143 with a 10 speed 871 type box in it, we are going to chnge it for a 13 speed fuller, once we have worked it out, cos scania gearboxs are always breaking, and fullers dont, i would rather put up with an ocasional crunch than to be left stranded again, i have had 5 scanias, all of them have done boxs, in twenty yrs i have never broke a fuller.
Haha we got one in an erf, and we had a new lad start, he had just passed his test, he took it for a spin grinding and crunching and sweating his way up the road, he came back 5 mins later, he said, i want the job and all but i am frightened im going to break the gearbox, i said son, take it out for the day and practise, and dont worry , if anything breaks, it will probably you, not the gearbox…He is still here four years later, and still on the same gearbox…!
I got to have an hour on one very early in my career, horrible for the first 55 minutes, but after that it did seem to make a lot of sense, very pleasant to drive when it goes right, but get it wrong and things go south terribly quickly!
Very lucky in being able to try one as a “young 'un” in the industry, and probably won’t get the chance again. But at least when you old gits are pining on about them I can join in and said I’ve given it a go!
the gearbox with a thousand neutrals, the best gearbox ever made, they should have never stopped making them, only use the clutch too start and stop then play a merry tune all the way through
scotstrucker:
the gearbox with a thousand neutrals, the best gearbox ever made, they should have never stopped making them, only use the clutch too start and stop then play a merry tune all the way through
Yeah what he said. It was a bit like marmite. Some loved it (me) and others were just completely baffled by it. Heard a man in tears cos he just couldn’t get it to go!!! Heard another tale of a haulage firm having an EC10 demo truck with a twin split for a week and it never moved, all the drivers refused to take it out.
Wheel Nut:
As normal Carryfast talking ■■■■■■■■ again
The TSO does everything an RT does and more. Why make life difficult when you can just enjoy the ride
The easiest and simplest manually selected gearbox ever fitted in a proper lorry!
The voice of reason actually again.If the twin split was that good then they’d have have consigned the range change to the history books when in fact it’s the twin split that’s gone and what they actually did was what they should have done in the beginning by just making the thing an 18 speed still with a good old fashioned range change and splitter arrangement .
I seem to remember a post where you mentioned you had never driven anything with a Eaton TSO 11612 box, yet you are able to comment, and also promote an antiquated 18 speed gearbox
The Twin Splitter was dropped because of strict drive by noise pollution, the 18 speed in Europe is just not a viable option
Wheel Nut:
As normal Carryfast talking ■■■■■■■■ again
The TSO does everything an RT does and more. Why make life difficult when you can just enjoy the ride
The easiest and simplest manually selected gearbox ever fitted in a proper lorry!
The voice of reason actually again.If the twin split was that good then they’d have have consigned the range change to the history books when in fact it’s the twin split that’s gone and what they actually did was what they should have done in the beginning by just making the thing an 18 speed still with a good old fashioned range change and splitter arrangement .
I seem to remember a post where you mentioned you had never driven anything with a Eaton TSO 11612 box, yet you are able to comment, and also promote an antiquated 18 speed gearbox
the 18 speed in Europe is just not a viable option
But I have used 13 speed fullers and even then thought why don’t they just put the splitter function on the lower range as well as the high one .Only to find out years later that the idea is now a common option .
Also never drove the twin splitter but can remember thinking why and what’s the advantage at the time.Which is exactly the same logic which I’ve always applied to the euro type synchromesh boxes on trucks like Mercs etc etc and the automated manuals compared to the so called ‘antiquated’ constant mesh range change and splitter fuller.
But then anyone who can’t understand that logic would’nt understand how a car could be made much better by throwing the auto box in a skip and fitting the thing with a proper manual box and the only improvement that could be made then would be to have that box rebuilt without the heavier and slower to shift synchromesh in it.
But if 18 speeds are’nt viable in Europe then the European transmission manufacturers wasted a lot of time and money on developing 16 speed boxes.
Fair point with your 16 speed ZF, but how many other manufacturers cut the number of gears down. Volvo had a 16 speed box which was developed into 14 and 9 on the Volvo and 14 and 10 on the Scania.
Mercedes looked the problem from the wrong end with the EPS, they made a semi automatic gearchange with a bloody heavy clutch
But like Marmite, love them or hate them, they have moved the goalposts forward a bloody long way.
richmond:
I have a scania 143 with a 10 speed 871 type box in it, we are going to chnge it for a 13 speed fuller, once we have worked it out, cos scania gearboxs are always breaking, and fullers dont, i would rather put up with an ocasional crunch than to be left stranded again, i have had 5 scanias, all of them have done boxs, in twenty yrs i have never broke a fuller.
Always the weak point on any Scania and the boxes are expensive to re-build, I believe the 13 speed fuller is a factory option on the Aussie market, so technical info should be available there.
Modern trucks don’t need 16 18 gears I drive a 360 hp 8 wheeler and a 440 hp artic both with 16 speed boxes and only really split the top two gears.
To Richmond the fuller or twin split option should be easy enough to sort out as the Aussies done it along with a few uk heavy hauliers. I’m sure if you have a word at astrans some of there subbies fitted them to 141s and 142s over the years
Wheel Nut:
As normal Carryfast talking ■■■■■■■■ again
The TSO does everything an RT does and more. Why make life difficult when you can just enjoy the ride
The easiest and simplest manually selected gearbox ever fitted in a proper lorry!
The voice of reason actually again.If the twin split was that good then they’d have have consigned the range change to the history books when in fact it’s the twin split that’s gone and what they actually did was what they should have done in the beginning by just making the thing an 18 speed still with a good old fashioned range change and splitter arrangement .
I seem to remember a post where you mentioned you had never driven anything with a Eaton TSO 11612 box, yet you are able to comment, and also promote an antiquated 18 speed gearbox
The Twin Splitter was dropped because of strict drive by noise pollution, the 18 speed in Europe is just not a viable option
Haha! As the Yanks would say : PWNED !
As usual, full of [zb] and doesn’t have a clue about anything vehicle or driving related unless it’s to do with local council gritters (and even that could well be another tall story ).
Wheel Nut:
As normal Carryfast talking ■■■■■■■■ again
The TSO does everything an RT does and more. Why make life difficult when you can just enjoy the ride
The easiest and simplest manually selected gearbox ever fitted in a proper lorry!
The voice of reason actually again.If the twin split was that good then they’d have have consigned the range change to the history books when in fact it’s the twin split that’s gone and what they actually did was what they should have done in the beginning by just making the thing an 18 speed still with a good old fashioned range change and splitter arrangement .
I seem to remember a post where you mentioned you had never driven anything with a Eaton TSO 11612 box, yet you are able to comment, and also promote an antiquated 18 speed gearbox
the 18 speed in Europe is just not a viable option
But I have used 13 speed fullers and even then thought why don’t they just put the splitter function on the lower range as well as the high one .Only to find out years later that the idea is now a common option .
Also never drove the twin splitter but can remember thinking why and what’s the advantage at the time.Which is exactly the same logic which I’ve always applied to the euro type synchromesh boxes on trucks like Mercs etc etc and the automated manuals compared to the so called ‘antiquated’ constant mesh range change and splitter fuller.
But then anyone who can’t understand that logic would’nt understand how a car could be made much better by throwing the auto box in a skip and fitting the thing with a proper manual box and the only improvement that could be made then would be to have that box rebuilt without the heavier and slower to shift synchromesh in it.
But if 18 speeds are’nt viable in Europe then the European transmission manufacturers wasted a lot of time and money on developing 16 speed boxes.
The way I read Wheel Nuts post was that an 18 speed twin splitter wouldn’t be viable in Europe due to even more noise being produced, so even worse in the drive-by noise test. I also seem to remember that the standard 12 speed wasn’t strong enough built to handle anything over about 480 bhp (It was designed when 360bhp was a pipe dream). To uprate it enough to handle 500+bhp would also have increased it noise output. The final nail in its coffin was that the fastest way to learn it, was a quick 15 minute lesson. Companies were no longer willing to take the time to show anyone how. Same for many other things, especially supermarkets who buy big fleets of trucks. They want to just hand over the keys to whichever Tom, ■■■■ or Harry arrives and send them straight out the gate. The fact that Tom, ■■■■ or Harry could easily be waiting a few hours for a unit to be available for them to drive being immaterial.
I drove an ERF EC14 with an Eaton Twin-splitter fitted, on steel haulage for a couple of years.
I’m a lover of that box, as fitted to the ERF, which I understand was different to the way Foden set it up. Foden used cables, ERF used rods, I think.
I also love Marmite.
kr79:
Modern trucks don’t need 16 18 gears I drive a 360 hp 8 wheeler and a 440 hp artic both with 16 speed boxes and only really split the top two gears.
Modern trucks, fully freighted, on proper long hills rather than our piddly little UK hills, need all the gears you can find.
Wheel Nut:
As normal Carryfast talking ■■■■■■■■ again
The TSO does everything an RT does and more. Why make life difficult when you can just enjoy the ride
The easiest and simplest manually selected gearbox ever fitted in a proper lorry!
The voice of reason actually again.If the twin split was that good then they’d have have consigned the range change to the history books when in fact it’s the twin split that’s gone and what they actually did was what they should have done in the beginning by just making the thing an 18 speed still with a good old fashioned range change and splitter arrangement .
I seem to remember a post where you mentioned you had never driven anything with a Eaton TSO 11612 box, yet you are able to comment, and also promote an antiquated 18 speed gearbox
the 18 speed in Europe is just not a viable option
But I have used 13 speed fullers and even then thought why don’t they just put the splitter function on the lower range as well as the high one .Only to find out years later that the idea is now a common option .
Also never drove the twin splitter but can remember thinking why and what’s the advantage at the time.Which is exactly the same logic which I’ve always applied to the euro type synchromesh boxes on trucks like Mercs etc etc and the automated manuals compared to the so called ‘antiquated’ constant mesh range change and splitter fuller.
But then anyone who can’t understand that logic would’nt understand how a car could be made much better by throwing the auto box in a skip and fitting the thing with a proper manual box and the only improvement that could be made then would be to have that box rebuilt without the heavier and slower to shift synchromesh in it.
But if 18 speeds are’nt viable in Europe then the European transmission manufacturers wasted a lot of time and money on developing 16 speed boxes.
The way I read Wheel Nuts post was that an 18 speed twin splitter wouldn’t be viable in Europe due to even more noise being produced, so even worse in the drive-by noise test. I also seem to remember that the standard 12 speed wasn’t strong enough built to handle anything over about 480 bhp (It was designed when 360bhp was a pipe dream). To uprate it enough to handle 500+bhp would also have increased it noise output. The final nail in its coffin was that the fastest way to learn it, was a quick 15 minute lesson. Companies were no longer willing to take the time to show anyone how. Same for many other things, especially supermarkets who buy big fleets of trucks. They want to just hand over the keys to whichever Tom, ■■■■ or Harry arrives and send them straight out the gate. The fact that Tom, ■■■■ or Harry could easily be waiting a few hours for a unit to be available for them to drive being immaterial.
I drove an ERF EC14 with an Eaton Twin-splitter fitted, on steel haulage for a couple of years.
I’m a lover of that box, as fitted to the ERF, which I understand was different to the way Foden set it up. Foden used cables, ERF used rods, I think.
I also love Marmite.
I think wheelnut definitely did’nt mean an 18 speed twin split. and most versions of the roadranger were rated to handle a lot more than 360 hp .The 13 speed was definitely used on trucks with a lot more than 360 hp output and I don’t know of any noise issues on that or probably the 18 speed version which would be much more than a typical euro type synchro box .The issue of driving skills would sort itself out in that supermarket drivers can keep their fleet spec electric automated heaps and leave the real work and trucks for the drivers who can drive them. .
Simon, for once Carryfast is correct. I didn’t mean an 18 speed twinsplitter, that was never an option.
The Eaton TSO failed the noise tests as did many other types of gearbox. Carry seems to think I am against the 9, 13, 15 and 18 speed Fuller boxes. I am not, they were a forerunner of the TSO and eventually the iShift
Most of the drivers who hated these boxes had only driven them for an hour or a couple of days at most, anyone who had driven one in anger will know how slick they were. Any constant mesh gearbox is faster than a synchromesh gearbox, it just takes a little more practice and the knack of pushing the stick through quicker.
Engines work differently now, they will pull a house down much more easily than 25 years ago although the Rockwell Fuller ■■■■■■■ is still a favourite power house, for me, and many others of our age
Wheel Nut:
As normal Carryfast talking ■■■■■■■■ again
The TSO does everything an RT does and more. Why make life difficult when you can just enjoy the ride
The easiest and simplest manually selected gearbox ever fitted in a proper lorry!
The voice of reason actually again.If the twin split was that good then they’d have have consigned the range change to the history books when in fact it’s the twin split that’s gone and what they actually did was what they should have done in the beginning by just making the thing an 18 speed still with a good old fashioned range change and splitter arrangement .
I seem to remember a post where you mentioned you had never driven anything with a Eaton TSO 11612 box, yet you are able to comment, and also promote an antiquated 18 speed gearbox
The Twin Splitter was dropped because of strict drive by noise pollution, the 18 speed in Europe is just not a viable option
Haha! As the Yanks would say : PWNED !
As usual, full of [zb] and doesn’t have a clue about anything vehicle or driving related unless it’s to do with local council gritters (and even that could well be another tall story ).
.
