Might have found a fix for hard shifting

[Sled Puller]

Pit Bull, it is in the wording- If it would have said "YOU MUST USE XYZ" Then they have to provide it.

By saying they recommend, or equivelent, they sneak out out of it.



Keep in mind DC only wants your truck to go to warranty, after that they want you to buy parts, or a new one.



I would like to see an analysis on that jellied lube. I want to know the why, becuase obviuolsy, not all of them do that.

 

[emarsh]

First, Happy Thanksgivings! I would never be the first to post about oil or additives. But since someone has already started this topic, I feel compelled to jump right in! I used to sell a product called Pro Tec, which was multilevel marketed. I had a test machine that would use a timken roller bearing piece and force it into a rotating grinding wheel. Seeing this test convenced me to sell this stuff (which I still use 20 years later). I no longer sell it for two reasons, one we moved and lost all of the accounts we had, two, its just too hard to convence people that this stuff works. (By the way, Pro Tec was the first additive to be approved by the FAA). This is what I added to my 02 6 speed to make it shift MUCH smoother, immediately. Now when it is really cold I find going into 3 rd is best done by doubleclutching for the first 3 or 4 shifts, now that winter is back. All I want to say that I know these additives really work. For those that do not believe in additives, no problem, I learned a very long time ago that between men you do not try to convence another man to do it your way or else; everyone has their own belief, great! It works for me, perhaps if you actually tried it you would also agree. I really don't care but had to support the topic posted because I know the truth. ED

 

[Reb.B]

hey guys ATF all the way! may be a quart of Mobile one syn. to the mixture. I had 100K on the nv 4500 and the syncros were perfect. Some people say, "u can't do that, u'll ruin the braking material on the syncros", . . the the braking material on the syncros is the same stuff that u use on Automatic transmission clutches. So i say Mercon V for your NV 4500 and 5600. And better lubricisity put a quart of Mobile 1 synthetic. This set-up and u'll be shifting smoother than butter, ... well close to it at least.

 

[Gary - K7GLD]

Dexron AT fluid was what was spec'd for the Camaro 6-speed - which had fiber syncro facings - LOTS of guys figured they knew better than GM and the transmission maker, and switched to other lubes, then paid the price in lost syncros and voided warranties... The numbers of lost syncros, bad brake rotors and failed fuel pumps in the Camaro were WAY up there - sound familiar?



Dunno about use of other lubes than the VERY narrow range spec'd by DC for our 5600's - but Wayne (Amsoilman) and a few others have sold me on the use of Amsoil 80W-90 synthetic gear lube in mine - and they'll never hear the end of it if'n it DON'T work!

 

[danandamy]

Dang, after reading all of this, I think the only REAL answer if for you standard guys to retrofit and get an AUTOMATIC!



potstirring dan

DTT RULES

 

[Pit Bull]

Think I will stay with the Mopar stuff and change it every 20K. Figure with the 7/70 warranty on the 6 speed that if I have a problem I will know before the warranty is up and DC can pay to fix it. In the 3 1/2 years it will take me to run out of warranty you pioneers will have tested these other lube approaches with several hundred thousand miles of use and I will then take advantage of that knowledge and run what has been working for the pioneers in 6 speed alternative lubracation

 

[Pit Bull]

Originally posted by danandme

Dang, after reading all of this, I think the only REAL answer if for you standard guys to retrofit and get an AUTOMATIC!



potstirring dan

DTT RULES

"AUTOMATIC" :-laf Been there done that Dan it's a truck!!! Trucks should have a manual shifter, unless you have to get the automatic because your wife needs to also drive your truck. Then I understand why you would get the automatic :-laf



Dan now that is what you call "Pot Stirring"

 

[Rob Thomas]

Originally posted by Pit Bull

"AUTOMATIC" :-laf Been there done that Dan it's a truck!!! Trucks should have a manual shifter, unless you have to get the automatic because your wife needs to also drive your truck. Then I understand why you would get the automatic :-laf



Dan now that is what you call "Pot Stirring"

LMAO :-laf :-laf Tell 'em Pit Bull!



Auto's are fer wusses. Right Danno?



Later, Rob

 

[Shelby Griggs]

Texas Diesel

That fluid doesn't look right!!!! I changed all my boxes at 50K. The OEM six speed fluid looked pretty good. It and the front diff looked very clean. The ATF in the transfer case was way nastier than I would have thought, and the worst was the rear diff, I think from water contamination. Anyway I didn't think the transmission fluid looked bad at all. There must be something in your use that is causing high heat??? You say you have killed two trannies? That is not normal. I had one replaced under warranty, but it wasn't dead, just hard shifting, they replaced no questions asked.



Shelby

 

[danandamy]

Originally posted by Rob Thomas





Auto's are fer wusses. Right Danno?



Later, Rob

LOL Yep..... oh and for going faster than you!



dan

 

[Lsfarm]

Autos for Wussies

Hey Rob, How much boost do you have at launch? How much do you have or loose at every shift?



And didn't you just put in a 'super clutch' so that you can slip it half the length of the track?



HEY: They make torque converters for that!!!



LOL ! !



Greg L the Noise Nazi





Have a great Thanksgiving!!

 

[Gary - K7GLD]

Last week, I pulled a small sample outta my 5600 - into a glass jar so I could check it for contamination and clarity... It actually looked quite good - a small trace of microscopic brass "sheen", some larger , but still small and fewer particles of what looked like black fiber particles - syncro facing material perhaps?



Anyway, perhaps tomorrow the Amsoil goes in...

 

[Pit Bull]

Originally posted by Gary - KJ6Q



Anyway, perhaps tomorrow the Amsoil goes in...

Gary, how many miles on your truck?

 

[Sled Puller]

Re: Autos for Wussies

Originally posted by Lsfarm

Hey Rob, How much boost do you have at launch?



Have a great Thanksgiving!!

BEFORE the clutch is the whole way out my wastegate is dumping underneath the truck- it is set at 60#, and will still creep to 65.





Somebody show me an auto that will take that for half the pulling season, let alone 2 or 3! Shoot, I'll make it easy, show me one launch!





Robs clutch can take a 4th gear launch at the strip, there may be some sparks and life gone, but it is worth if he can stuff an auto!



Go Rob! And put that bed down!

 

[Diesel Freak]

some things to ponder

the STF 1874 that NVG requires for the 5600 is NOT synthetic.



Red Line MTL which I am using has very similar physical properties.



when changing the oil in the 5600 dont forget to wipe off the magnet that is on the bottom of the transmission..... I found more metal particulate on this magnet from using the OEM oil than from the Red Line.....

 

[Gary - K7GLD]

Pit Bull - a little over 6000 miles on the truck - on the 6-speed in my '98 Camaro SS, at about 1000 miles, I drained the ATF it came with, and it was VERY contaminated with fine brass - an obvious sheen to the lube... After 2 more changes, about 1000 miles apart, it finally was cleaner of fine suspended brass... transmission always behaved perfectly - but with all the problems others were having, I was concerned...



By comparison, the lube from my 5600 is EXTREMELY clean - at least as far as what I drew thru the fill plug with a suction gun - doesn't really need changing because of present physical/visual condition, I just prefer to switch both the transmission and differential over to synthetic lube... Earlier, rather than later...



Besides, Wayne has assured me that Amsoil is the best stuff for my transmission and differential on the planet...

 

[South Bend Clutch]

Found this on North West Bombers forum from Vaughn M.



http://www.nwbombers.com/board/ikonboard.cgi?act=ST&f=2&t=1568



Peter

 

[amsoilman]

Someone tell me where this magnet is on the NV-5600 transmissions. I just changed out the lube in my2003 NV-5600 and there is no drain plug, and no magnets either. The book tells you to remove the lower bolt from the PTO Cover to drain the fluid out. I refilled it with Amsoil 5W-30 Synthetic Motor oil.



Wayne

amsoilman

 

[Gary - K7GLD]

Well, after a week and a half and a few miles on the Amsoil 80/90, here's what I have observed...



1. When cold, a definite tendency to grind going from 2nd-to-3rd, and 3rd-to-4th unless extreme care is used. I had NO grinding, hot or cold, with the original lube...



2. Shifts more smoothly into reverse - had been a little touchy at some times with stock lube.



3. even tho' I made sure to fill completely to the fill hole, instead of 1/2-1 inch below, NO signs of leakage anywhere.



4. transmission/differential were both very quiet before switching to Amsoil - and still are - but maybe even quieter than before - to be expected with the heavier lubes, even non-synthetics...





While the cold shifting grind is annoying, it goes away completely after about 5-10 miles driving, and continues to shift better and smoother than the stock stuff - I can only assume the weight difference contributes to this - but wanted heavier stuff for towing service - I'll live with it for the time being, and will re-evaluate when time comes to change again.



Satisfied with the switch? Pretty much - would be moreso if it wasn't for the cold-gear grind - but not a real big deal - and probably worth it if the other claimed benefits of synthetics are realized...

 

[Sled Puller]

Originally posted by Gary - KJ6Q

Well, after a week and a half and a few miles on the Amsoil 75/140, ...

You mean 140 in the diff,not the six speed, right?