Swift making it difficult

Pray tell, what do you mean by "old school transmission"? Because I'm sure there are even some of our bona fide, certified old hands on here who've been running the twin countershaft unsynchronized transmission since they started driving.
If you know how to shift properly, then you don't tear up the transmission, and floating is preferred because it reduces wear on the clutch... if you're prone to tearing up transmissions floating the gears, you're going to do it double clutching, as well.

 

Every one has a right to their own opinion... i only state the prefered method prescribed by eaton fuller and the state of utah. In order to pass the driving exam here you are required to double clutch and eaton fuller says new transmissions are built different than 30 years ago and if you float the gears you risk tearing up the transmission because they were designed to be used wbile double clutching please refer to this video https://www.youtube.com/watch?v=RUZrNnJ5ScE&feature=youtube_gdata_player

 

Could it also be possible that Eaton wants you to double clutch because that wears out a clutch faster and they just happen to manufacture those as well?

The only main difference between Eaton transmissions of today and 30 years ago is the " low inertia " concept which actually helps floating. The basic internals haven't really changed all that much. Don't believe the hype.

 

Old school like a Spicer 6 x 4 twin stick lol!

You know, doing 120 mph with both sticks against the dash........

 

I recently had the opportunity to drive a 1972 mack with a browning 5x4 was fun but noway did i wanna go over 55 rofl it was just an abused wench truck but she did gitter done

 

I have substantially more than a year of experience, and I turn wrenches for a living. As stated already, the only difference between a split range, twin countershaft transmission today and 30 years ago is the low inertia concept. Yes, you must be able to double clutch to pass a driving exam. Nobody is disputing that point, and a large part of the reason behind that is that, even if you float, there will be times when you do have to use a clutch pedal. E.g., you're going down an access trail, hit a soft spot, and suddenly have to drop four or five gears in order keep forward momentum. I've run a wide range of trucks -ranging from vocational single axles with a twin countershaft transmission up to heavy haulers with substantially more than five axles - floating them all, and have never torn up a transmission, and I'm sure there are a lot on here who can say the same, including owner/operators who have owned their trucks for a decade or longer. If you can't match up your RPMs right while floating, you're not going to match them while double clutching, and are equal risk of tearing the transmission up.

I don't think that's what he was referring to, though. He specified 30 years ago, and I believe the RoadRanger came out in the 1970s, if I'm not mistaken?

 

Idk about 70's but i drove an 81 whitestar with what i was told a road ranger 5x4 im sure thats close enough to the 70's lol but what i meant is that the older transmissions had gears built differently back then which made them easy to float and allowed more play which cause less damage than the newer transmissions which are tighter and need the clutch to reduce pressure on the gears/transmission so they dont get tore up. I been driving alot of really crappy trucks and i have definately noticed how the less abused ones slide in and out of gear really easy and the more abused ones seem to catch burrs and dont go in and out so easy. Sometime while im float8ng out of a gear it will vet almost all 5he way out and catch on something internaly maki.g it so i have to pull it out pretty hard even when i use the clutch. And thats caused from floating on a newer transmission vs double clutching.

 

I took a road test in a 13 speed yesterday,it doesn't like 6th gear.Sorry wrong company,lol.

 

Btw yes i have had my class a for only 7 months but i have been working with all types of trucks for 6 years since i got my blass b cdl and ive been in The oil field for 18 years working with the same motors and transmissions adapted to other types of machinery and equipment