Is this a symptom of a bad 6-speed?

[Bob W]

I've been seeing several posts regarding the 6-speed grinding problem. Mine doesn't have an audible grind, but almost always between 2nd and 3rd, and sometimes from 3rd to 4th, I can feel the gears meshing through the stick. I noticed that the faster the engine is running, the smoother the shift. Should I feel the gears when I shift? Have any TSB's been issued regarding the transmission? Are there certain manufacturing dates that the problem 6-speeds come from? Thanks.

 

[Diesel Freak]

My 6spd does the same thing when it is cold... the synchro's mesh hard going into third. I have 25K on the truck and there have been no problems

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http://www.mudrunner.sites.cc

 

[Archive]

I have 30,000 miles on my Ram... I have not had any problems with my six speed yet... (crossing my fingers!).

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Rob Hanson
1999 "Big Red", 3500 SLT QC 4X4 6 spd, 4. 10 LSD, Braided SS fuel lines, Mag-Hytec Rear Cover, Cummins E-Brake, Blue Box, DD3 Injectors, Banks High Ram and 14cm Wastegated Turbo, All-steel Cowl Induction Hood, Cummins RED Valve Cover, Rhino, Rosewood Kit, Scotty System, SportComp Gauges, TorkLift SuperHitch, Tekonsha Brake Controller, Rear Flood lights, Cobra CB, DeeZee Running Boards, BD 2WD Low kit, Air Lift bags, Hitco exhaust blanket, air horns and a Geno's "I tromped a Ford" decal. Member of BOMB! (WW NW Chapter)

MyPics.com (pics updated 02/17/01)

I'd rather be... .
Cummin than Strokin.

 

[MikeR]

Bob,
Your 6spd sounds like it's operating normally. The way you describe it is right... you don't hear a grind,you just feel it in the stick. The slight clash will completely go away with more miles on the truck.

I now have 38,500 miles on my truck and it did grind going in 3rd gear during the first 6000 miles. Trans is still silky smooth with no noises or any problems.

-Mike

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'00 2500,QC,4wd,LWB,Dark Garnet,6spd,3. 54lsd,SLT,DD stage II,Psychotty air,10-level PM3,Jacobs ebrake,Isspro pyro & boost gauges,2wd-low,Airoquip fuel lines,Smittybilt nerfs,BFG 285/75 AT's
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'95 2500,Reg-cab,2wd,LWB,White/Driftwood,Automatic,3. 54open,SLT

 

[Gonzo 1066]

I think it is worth mentioning that the NV 5600 is a BIG transmission. The shafts bearings and gears are much bigger than the 4500. The more rotational mass there is the harder it is for the syncros to match speed. I am a firm bielever that this transmission is not a "hot rod" transmission. Give it some time and it shifts beautifully. The normal wear in seems to be about 6 to 10,000 miles. After that the shifting gets much better. IMO

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1995 2500 5 spd US Gear 2 speed,PackBrake, bombed,big turbo, injectors CUMMINS POWER!!. 2001 ETH 3500 PackBrake, gagues,otherwise stock. 1972 "1066" International Harvester 414 ci diesel pulling tractor, big pump,turbo and injectors. Alcohol injection,BINDER POWER!! .
GONZO