This is a thread about floating gears. Nevermind the original question.......
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CK5
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LETS DEBATE FLOATING GEARS in a Manual
- Thread starter NorCal_Chris
- Start date
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63chevyll
1/2 ton status
Yeah trane prob need a rebuild. More than likely its a NV
Is it a 6 lug or 8 lug 2500.
Is it a 6 lug or 8 lug 2500.
I'm no transmission specialist, but I'd guess shift forks are worn from somebody pulling it out of gear without pushing in the clutch. It's ok if your RPM's are just right and it slides out easy, you can even go into the next gear without the clutch if you are talented but it's NOT recommended in skate boards. And never force one out of gear without the clutch.
Skate boards?
Martin
Martin
Look underneath it. If the case is cast iron, it's an NV4500.
Martin
Martin
1/2 ton 6 lug could get 4500 tranny if tow package and or 4.3v6 work truck aka W/T badge and std tranny ordered. my buddy got a 4500 from a ad on craigslist for a 5 speed 4x4 with tcase from a 1/2 ton truck . no pics but he went and looked and was very happy he did . 
but yes if cast iron main body of tranny its a nv4500
if its aluminum main body its light duty so so tranny and not easy to reman from what I have read .
but yes if cast iron main body of tranny its a nv4500
if its aluminum main body its light duty so so tranny and not easy to reman from what I have read .
Sorry, that's just a term truckers use when referring to 4 wheeled vehicles.
("Truck" can be a pickup or semi) In a semi you only use the clutch to stop and start again, but not for gear changes.
Yeah, I know how to drive a semi. You don't have to use the clutch in almost anything.
Martin
Martin
punchinghorse
Uppercutting Equestrian
Not to get too off topic, but just had to chime in as a former truck driver. I really wish there were an option for an non-synchro light duty truck transmission. It would be stronger and, in my opinion, easier to drive with not needing the clutch 95% of the time and all. I wonder if anyone has ever just removed the synchros out of a 465 or 4500, or if they are required to be there for the trans to work at all.
I've thought about that before and don't think it would work or work as well for couple reasons. 1 being gas engines RPM range is much greater, but 2 the general public would not be able to shift at all?
The synchronizers make shifting possible (especially in gas burners) because the RPM:speed window required to shift without a clutch is so narrow that the average driver would just be grinding gears all the time, and down shifting becomes nearly impossible, due to the quick revs of the short stroke engine.
Pulling a synchronized transmission out of gear (under a load especially) will damage the locking collars that hold the gears in place, thus causing them to jump out of gear while under a load.
A non-synchronized or even synchromesh transmission my be possible in a diesel model since they spin slower, but I think they stopped making them back in the 50's because they were a pain in the @$$ for inexperienced drivers.
***(Again I'm no expert and may be a bit off here, but this is how I understand it) feel free to correct me if I'm giving bad info, that is not my intent.
Pulling a synchronized transmission out of gear (under a load especially) will damage the locking collars that hold the gears in place, thus causing them to jump out of gear while under a load.
A non-synchronized or even synchromesh transmission my be possible in a diesel model since they spin slower, but I think they stopped making them back in the 50's because they were a pain in the @$$ for inexperienced drivers.
***(Again I'm no expert and may be a bit off here, but this is how I understand it) feel free to correct me if I'm giving bad info, that is not my intent.
4xcrazy
3/4 ton status
Drove trucks for 15 years, easiest trans to slip in and out without a clutch was in those things, and I was also going to comment about the gas engines rpm moving too quickly for smooth shifting. I toyed with that method a few times in manual cars or light trucks and it was just as mentioned, too narrow of an rpm range to be able to find it easily and get the shifting movement done precisely and quick enough without grinding.
It can be done, but is just so much easier to use the clutch in the car.light truck than to deal with the added concentration and paying more attention to the trucks engine speed/road speed to do the job.
The gas engines just drop rpm's way too fast to do it smoothly.
It can be done, but is just so much easier to use the clutch in the car.light truck than to deal with the added concentration and paying more attention to the trucks engine speed/road speed to do the job.
The gas engines just drop rpm's way too fast to do it smoothly.
I've floated gears in every thing I've owned. It's not difficult.
Martin
Martin
In fact it is easier and more forgiving in a car than it is in a semi. You guys are crazy.
Martin
Martin
Until you can drive a Mack duplex your just average! Now if you can drive a Triplex? You be a professional driver!
Just don't break an arm shifting in town going around corners! If you don't know you use two hands to shift and one arm goes through steering wheel...
I actually liked driving the Duplex... and no never broke an arm!
Sure bruised an elbow once in a pothole going around a corner! No they don't have power steering either...
Man I'm old...
Just don't break an arm shifting in town going around corners! If you don't know you use two hands to shift and one arm goes through steering wheel...
I actually liked driving the Duplex... and no never broke an arm!
Sure bruised an elbow once in a pothole going around a corner! No they don't have power steering either...Man I'm old...
Though I didn't make a regular habit of it--I used to shift my SM465's and my VW Jetta's 5 speed without the clutch sometimes,I only used the clutch to start off from a dead stop...once you get the hang of it,it can be done easily,with no gear clashing or synchro damage...did it in my old VW beetles too...
I got good at double clutching when my '56 Chevy truck with a non synchro first gear needed to be downshifted into first when I'd come to a near stop on a steep hill..that 3 speed didn't like being downshifted into first even if you did double clutch it "just right"...the SM465's first gear was also non synchro,but I could usually pop it right in, while rolling under 5 mph or so with no clashing..
I've never had the oppertunity to drive a real "big rig",the only thing close I once drove was an old Mack flat nose tilt cab a guy I worked for awhile had ,and one night I was appointed the "designated driver" after he'd consumed too many 7&7's at a bar,and I got a "clash course" in how to shift a Mack that had a 10 speed!...he was like "here--YOU drive--I'm too wasted!"..and he hands me the keys!..
.
(I got pulled over by a state cop on the highway no more than 15 minutes later too!...found out the tail lights did not work,and the muffler was not doing much muffling,it was not connected to the front pipe.......he never asked me for my license--my "employer" was 3 sheets to the wind and sounded like he was going to heave,and the cop was too busy arguing with him,wanting to know why he had a .357 in his holster,wanted to see his F.I.D. card,etc..long story..
)..
I actually did pretty well shifting it though...driving it was quite terrifying though,I had never driven a truck larger than a 3/4 ton till that night--and after dark that Mack seemed too big to fit on the streets!..the front end on it felt like there was so much play,you could turn the wheel 1/2 a turn before the truck responded--I'm sure that led to me weaving down the highway,and it caught the cops attention as he came up behind us..also I'd never drove anything with air brakes before--darn near pooped myself when I went to stop the truck the first time,and the pedal went almost to the floor,with little resistance!..
I got good at double clutching when my '56 Chevy truck with a non synchro first gear needed to be downshifted into first when I'd come to a near stop on a steep hill..that 3 speed didn't like being downshifted into first even if you did double clutch it "just right"...the SM465's first gear was also non synchro,but I could usually pop it right in, while rolling under 5 mph or so with no clashing..
I've never had the oppertunity to drive a real "big rig",the only thing close I once drove was an old Mack flat nose tilt cab a guy I worked for awhile had ,and one night I was appointed the "designated driver" after he'd consumed too many 7&7's at a bar,and I got a "clash course" in how to shift a Mack that had a 10 speed!...he was like "here--YOU drive--I'm too wasted!"..and he hands me the keys!..
.(I got pulled over by a state cop on the highway no more than 15 minutes later too!.
..found out the tail lights did not work,and the muffler was not doing much muffling,it was not connected to the front pipe.......he never asked me for my license--my "employer" was 3 sheets to the wind and sounded like he was going to heave,and the cop was too busy arguing with him,wanting to know why he had a .357 in his holster,wanted to see his F.I.D. card,etc..long story..)..I actually did pretty well shifting it though...driving it was quite terrifying though,I had never driven a truck larger than a 3/4 ton till that night--and after dark that Mack seemed too big to fit on the streets!..the front end on it felt like there was so much play,you could turn the wheel 1/2 a turn before the truck responded--I'm sure that led to me weaving down the highway,and it caught the cops attention as he came up behind us..also I'd never drove anything with air brakes before--darn near pooped myself when I went to stop the truck the first time,and the pedal went almost to the floor,with little resistance!..
That's funny stuff man. I learned how to drive in 79 International hay truck with a 22' flat bed. It had a "working fifth" and big 'ol gas burner.
And yes, I have driven a two stick '79 Mack, it was a dump truck with a vibrator on the bed and could dump in reverse. The puff limiter didn't work and poured thick black smoke out it's leaf blower exhaust so bad we'd get called in on at least twice a day for skipping gears and make the cars in the outside lane disappear.
A war veteran friend of mine was driving it one day and saw some people of middle eastern dissent standing on the corner at a stop light waiting for the crosswalk light to change. When our light turned green he took off in 3rd gear and stomped it to keep from stalling the engine. You couldn't see them for a good 20 seconds or longer but when the smoke cleared both were puking their guts out in the middle of the road. I still laugh out loud just thinking about it.
Sorry I think we may have highjacked your thread.,
4xcrazy
3/4 ton status
Well of course YOU have...
