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440 4-speed, severe grinding in and out of every gear #3169093 08/19/23 08:35 PM 08/19/23 08:35 PM
Joined: Dec 2004 Posts: 733 Northern Virginia Moparmaniacc OP super stock
Moparmaniacc OP super stock Joined: Dec 2004 Posts: 733 Northern Virginia	I don't know how to describe what is going on with my 4-speed, basically it sounds like I'm trying to push it into gear without the clutch, but then again it sounds like that even when I am OUT of gear. This is a 23-sline A-833 in a 70' Challenger. I can still get it to shift, all 4 gears and reverse, with difficulty but even then the grinding noise is there, it's not as bad when you are at the optimum speed for that gear. Is it a linkage adjustment gone wrong? or did my 1-2 and 3-4 synchros die at the same time? Sorry if this doesn't make sense. thanks J

Re: 440 4-speed, severe grinding in and out of every gear [Re: Moparmaniacc] #3169106 08/19/23 09:47 PM 08/19/23 09:47 PM
Joined: Jan 2003 Posts: 15,323 Omaha Ne T TJP I Live Here
TJP I Live Here T Joined: Jan 2003 Posts: 15,323 Omaha Ne	Originally Posted by Moparmaniacc I don't know how to describe what is going on with my 4-speed, basically it sounds like I'm trying to push it into gear without the clutch, but then again it sounds like that even when I am OUT of gear. This is a 23-sline A-833 in a 70' Challenger. I can still get it to shift, all 4 gears and reverse, with difficulty but even then the grinding noise is there, it's not as bad when you are at the optimum speed for that gear. Is it a linkage adjustment gone wrong? or did my 1-2 and 3-4 synchros die at the same time? Sorry if this doesn't make sense. thanks J So are you saying it grinds sitting still? In all gears? what does it do in neutral with the clutch in and out?? www.tandmautomotive-omaha.com

Re: 440 4-speed, severe grinding in and out of every gear [Re: Moparmaniacc] #3169107 08/19/23 09:47 PM 08/19/23 09:47 PM
Joined: Dec 2004 Posts: 10,552 Rittman Ohio fourgearsavoy I Live Here
fourgearsavoy I Live Here Joined: Dec 2004 Posts: 10,552 Rittman Ohio	Sounds like the input shaft isn't slowing down. Either your input shaft is bound up in the end of the crank with a stuck pilot bushing or the clutch is not disengaging. Severe mis-alignment could also do that . Dis it happen all of a sudden or did you change something? Gus 64 Plymouth Savoy 493 Indy EZ's by Nick at Compu-Flow 5-Speed Richmond faceplate Liberty box Dana 60

Re: 440 4-speed, severe grinding in and out of every gear [Re: fourgearsavoy] #3169113 08/19/23 10:12 PM 08/19/23 10:12 PM
Joined: May 2006 Posts: 1,754 Phila P PhillyRag top fuel
PhillyRag top fuel P Joined: May 2006 Posts: 1,754 Phila	Just drain out some fluid and see what it looks like. Any metal like residue would point towards bearings bad, or other item. let us know what it looks like.

Re: 440 4-speed, severe grinding in and out of every gear [Re: PhillyRag] #3169122 08/20/23 12:17 AM 08/20/23 12:17 AM
Joined: Jan 2003 Posts: 20,755 A collage of whims topside Too Many Posts
topside Too Many Posts Joined: Jan 2003 Posts: 20,755 A collage of whims	Had a deal in 2019 that sounds similar to that problem - a couple of the snap rings had been improperly installed in a previous rebuild, and the internals were moving fore & aft. Basically, the trans was eating itself; went from "what the hell is that" to a horrible grinding racket very quickly. Had to replace countershaft, synchro rings, bearings, and snap rings. Brewer's had everything for about $200 and shipped quickly.

Re: 440 4-speed, severe grinding in and out of every gear [Re: topside] #3169134 08/20/23 05:27 AM 08/20/23 05:27 AM
Joined: Jan 2003 Posts: 6,389 Abilene, Texas F fastmark master
fastmark master F Joined: Jan 2003 Posts: 6,389 Abilene, Texas	First, don’t drive it. You’re eating up your gears. I put synthetic gear oil in mine once and it was so slick, the synchros would not stop the gears and it would grind. Sounds like your input or clutch is not disengaging. Time to start pulling the transmission to check everything.

Re: 440 4-speed, severe grinding in and out of every gear [Re: Moparmaniacc] #3169193 08/20/23 12:59 PM 08/20/23 12:59 PM
Joined: Aug 2003 Posts: 43,129 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,129 Bend,OR USA	How much clutch travel do you have before it starts to get harder to push down? If more than one inch I adjust it so the pedal has minimum travel (less than one ich travel ) before it starts pushing on the pressure plate, I buy the A body A motor clutch rods to use in all my 4 speed cars, the stock B and E bodies are a lot shorter than the A body rods are Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: 440 4-speed, severe grinding in and out of every gear [Re: fastmark] #3169207 08/20/23 01:39 PM 08/20/23 01:39 PM
Joined: Jan 2003 Posts: 21,501 N.E. OHIO, USA A12 Too Many Posts
A12 Too Many Posts Joined: Jan 2003 Posts: 21,501 N.E. OHIO, USA	Originally Posted by fastmark First, don’t drive it. You’re eating up your gears. I put synthetic gear oil in mine once and it was so slick, the synchros would not stop the gears and it would grind. Sounds like your input or clutch is not disengaging. Time to start pulling the transmission to check everything. ^This is my guess too. Wrong trans fluid.

Re: 440 4-speed, severe grinding in and out of every gear [Re: A12] #3169225 08/20/23 03:04 PM 08/20/23 03:04 PM
Joined: Jan 2003 Posts: 20,755 A collage of whims topside Too Many Posts
topside Too Many Posts Joined: Jan 2003 Posts: 20,755 A collage of whims	At different times, I've run gear oil, ATF & synthetic in an A833, and never heard any roughness or grinding.

Re: 440 4-speed, severe grinding in and out of every gear [Re: Moparmaniacc] #3169320 08/20/23 09:51 PM 08/20/23 09:51 PM
Joined: May 2006 Posts: 1,754 Phila P PhillyRag top fuel
PhillyRag top fuel P Joined: May 2006 Posts: 1,754 Phila	If it's grinding AFTER your in gear & driving it, it's metal-on-metal contact. If that's true: has nothing to do about linkage/shifter adj, clutch petal travel, etc.

Re: 440 4-speed, severe grinding in and out of every gear [Re: PhillyRag] #3169390 08/21/23 11:41 AM 08/21/23 11:41 AM
Joined: Jan 2003 Posts: 215 Findlay R Ramman enthusiast
Ramman enthusiast R Joined: Jan 2003 Posts: 215 Findlay	Wrong gear lube. GL-4 only! Not GL-5 Not GL 4/5 GL-4 only!

Re: 440 4-speed, severe grinding in and out of every gear [Re: Ramman] #3169402 08/21/23 12:13 PM 08/21/23 12:13 PM
Joined: Jan 2003 Posts: 15,323 Omaha Ne T TJP I Live Here
TJP I Live Here T Joined: Jan 2003 Posts: 15,323 Omaha Ne	OP registered in 2004, has 744 posts 1.5 days 10 responses from all but the OP maybe he put an auto in it www.tandmautomotive-omaha.com

Re: 440 4-speed, severe grinding in and out of every gear [Re: TJP] #3169448 08/21/23 03:13 PM 08/21/23 03:13 PM
Joined: Feb 2003 Posts: 10,201 Someplace you aren't S SomeCarGuy I Live Here
SomeCarGuy I Live Here S Joined: Feb 2003 Posts: 10,201 Someplace you aren't	I out the passion gear oil in one and it went from smooth shifting to grinding. Drained it immediately. Old lube hadn’t been changed by me and came out with some moisture even. So I thought I’d done good until first drive. I put 85w-140 in and it was back to being business as usual. I mentioned this before on here and somebody said that meant the trans was worn out if it wouldn’t shift right with the passion juice. That might’ve been, but I wasn’t doing a tear down of a good working trans so I could run a certain type of gear oil. I want my fair share

Re: 440 4-speed, severe grinding in and out of every gear [Re: SomeCarGuy] #3169455 08/21/23 03:50 PM 08/21/23 03:50 PM
Joined: May 2006 Posts: 1,754 Phila P PhillyRag top fuel
PhillyRag top fuel P Joined: May 2006 Posts: 1,754 Phila	Originally Posted by SomeCarGuy I out the passion gear oil in one and it went from smooth shifting to grinding. Drained it immediately. Old lube hadn’t been changed by me and came out with some moisture even. So I thought I’d done good until first drive. I put 85w-140 in and it was back to being business as usual. I mentioned this before on here and somebody said that meant the trans was worn out if it wouldn’t shift right with the passion juice. That might’ve been, but I wasn’t doing a tear down of a good working trans so I could run a certain type of gear oil. Guess what's good-for-the-goose, may not be good-for-the-gander. (i.e. Passion vs A833) Baffles me why many don't use the "normal" gear oil in an a833. It thins out enough soon after driving as to not be a problem, except in colder weather. And really, how many Really drive them in cold weather?

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