Muncie question - Kicks out of 3rd gear
#3190339
11/11/23 10:14 PM
11/11/23 10:14 PM
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Joined: Jan 2003
Posts: 1,291 Tucson AZ,
MadMopars
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Tucson AZ,
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Hey guys, not necessarily a Mopar question but if it helps it's hooked to a Dana so maybe it can be asked here.. That being said, my father in law has a Muncie that kicks out of 3rd gear after about 4000 RPM. Doesn't matter how hard you try to hold the shifter, it'll kick out. He's swapped shifters, shift rods, shift levers and adjusted things multiple times with no real improvement. I've got a couple thoughts on what it may be but am not an expert by any means so I figured I would inquire here as to what the experts may think the problem may be. Hoping to get this resolved soon without sacrificing another 833 input shaft so I appreciate any help. Thanks guys! For what it's worth, it does have a Supercase if that matters...
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Re: Muncie question - Kicks out of 3rd gear
[Re: MadMopars]
#3190366
11/12/23 04:02 AM
11/12/23 04:02 AM
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Joined: Jan 2003
Posts: 7,490 Minnesota
Hemi_Joel
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Minnesota
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Has the bellhousing been indicated in to concentricity with the crankshaft? Have the engagement teeth on 3rd gear and the internal splines on the slider been checked for rounding/wear/damage? I'd start by pulling the side cover and inspecting the teeth, that's the easiest.
[img]http://i.imgur.com/boeexFms.jpg[/img]31 Plymouth Coupe, 392 Hemi, T56 magnum RS23J71 RS27J77 RP23J71 RO23J71 WM21J8A I don't regret the things I've done. I only regret the things I didn't do. "Wise men talk because they have something to say; fools because they have to say something. ~ Plato"
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Re: Muncie question - Kicks out of 3rd gear
[Re: Hemi_Joel]
#3190403
11/12/23 11:27 AM
11/12/23 11:27 AM
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Joined: Mar 2007
Posts: 3,277 West Coast, USA
jbc426
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Well, he does have a Dana, but the Chevy forums or something like the Yellow Bullet are probably a much more effective place to find an answer about Muncie transmission tech, althouh there are some very knowlegable folks on this site, hence the bump.
1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's 1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
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Re: Muncie question - Kicks out of 3rd gear
[Re: jbc426]
#3190412
11/12/23 11:46 AM
11/12/23 11:46 AM
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Joined: Jan 2003
Posts: 7,490 Minnesota
Hemi_Joel
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A transmission is a transmission. If you understand an 833, you understand a Muncie.
[img]http://i.imgur.com/boeexFms.jpg[/img]31 Plymouth Coupe, 392 Hemi, T56 magnum RS23J71 RS27J77 RP23J71 RO23J71 WM21J8A I don't regret the things I've done. I only regret the things I didn't do. "Wise men talk because they have something to say; fools because they have to say something. ~ Plato"
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Re: Muncie question - Kicks out of 3rd gear
[Re: Hemi_Joel]
#3190426
11/12/23 12:40 PM
11/12/23 12:40 PM
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Joined: Jan 2003
Posts: 1,291 Tucson AZ,
MadMopars
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Has the bellhousing been indicated in to concentricity with the crankshaft? Have the engagement teeth on 3rd gear and the internal splines on the slider been checked for rounding/wear/damage? I'd start by pulling the side cover and inspecting the teeth, that's the easiest. You may be on to something with the bellhousing. Years ago when we assembled the car, I dialed in the bellhousing with the new motor and we installed a used Muncie behind it. When measuring for the driveshaft we discovered the output shaft splines were twisted and in a rush to get the car together for Drag Weekend we stole the Muncie from his Corvette to use (worked fine). Long story short, shortly after returning from Drag Weekend he ended up pulling the clutch and the transmission back out of the car to swap in a new clutch and the previously removed damaged Muncie which he had since rebuilt. From that day forward, it's always kicked out of 3rd gear. He did make a comment about the shim stock I had put between the block and scatter sheild and I'm wondering if maybe they didn't go back as previously installed. As I recall, the sliders and internal splines looked good when he had it apart but I can't speak to that with certainty at this point as its been quite some time. Certainly worth looking into though. As much as I hate to do it, it's sounding like that transmission should probably come out to check that scatter sheild again. Could it really be that far out to cause this? Would it not affect any of the other gears?
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Re: Muncie question - Kicks out of 3rd gear
[Re: MadMopars]
#3190433
11/12/23 12:54 PM
11/12/23 12:54 PM
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Hemi_Joel
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Would it not affect any of the other gears? 4th is on the input shaft, 3rd is on the main shaft. Bellhousing misalignment creates misalignment between the input shaft and the main shaft and is most likely to mess up high gear or third gear.
[img]http://i.imgur.com/boeexFms.jpg[/img]31 Plymouth Coupe, 392 Hemi, T56 magnum RS23J71 RS27J77 RP23J71 RO23J71 WM21J8A I don't regret the things I've done. I only regret the things I didn't do. "Wise men talk because they have something to say; fools because they have to say something. ~ Plato"
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Re: Muncie question - Kicks out of 3rd gear
[Re: RobR]
#3190711
11/13/23 09:39 PM
11/13/23 09:39 PM
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Joined: Nov 2015
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jwb123
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The 3-4 huYEP b and slider are worn out,that's why it is jumping out of gear. Yep that is the issue. Pull trans apart the clutching teeth should have chisel sharp edges, they will be rounded over and worn.
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Re: Muncie question - Kicks out of 3rd gear
[Re: Cab_Burge]
#3190754
11/14/23 07:21 AM
11/14/23 07:21 AM
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Joined: Jan 2003
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JERICOGTX
I Live Here
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The best thing about a Muncie, is they are fairly light, making it easier to toss it into a dumpster.
69 GTX
68 Road Runner
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Re: Muncie question - Kicks out of 3rd gear
[Re: MadMopars]
#3190852
11/14/23 02:45 PM
11/14/23 02:45 PM
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Joined: Jan 2003
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Hemi_Joel
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The transmission will be coming out hopefully in the next week or two. We decided to make a last minute go at the Power Tour West in my GTX so the 442 will be 2nd on the priority list for a bit while I get the GTX prepped. I appreciate the input though and will be sure to report back with our findings as soon as we get it pulled. Thanks to all. -Trent Man, I REALLY want to do that power tour west. But we have a family Christmas party that weekend so I can't.
[img]http://i.imgur.com/boeexFms.jpg[/img]31 Plymouth Coupe, 392 Hemi, T56 magnum RS23J71 RS27J77 RP23J71 RO23J71 WM21J8A I don't regret the things I've done. I only regret the things I didn't do. "Wise men talk because they have something to say; fools because they have to say something. ~ Plato"
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Re: Muncie question - Kicks out of 3rd gear
[Re: Hemi_Joel]
#3191002
11/15/23 01:06 AM
11/15/23 01:06 AM
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Joined: Jan 2003
Posts: 1,291 Tucson AZ,
MadMopars
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The transmission will be coming out hopefully in the next week or two. We decided to make a last minute go at the Power Tour West in my GTX so the 442 will be 2nd on the priority list for a bit while I get the GTX prepped. I appreciate the input though and will be sure to report back with our findings as soon as we get it pulled. Thanks to all. -Trent Man, I REALLY want to do that power tour west. But we have a family Christmas party that weekend so I can't. That's a bummer you can't make it. Would have been great to catch up. We don't get much activity over here on the West coast but when we do I try to participate. Some day I'll make it out East to one of the bigger events but with a wife and 4 kids, building a house and now starting a new business, it's hard to even justify keeping the cars some days let alone playing with them. I think that's partly why I decided to go though. The opportunity to create some good memories with the family and to get back in the seat for even just a bit should be good for soul. Some day I'll get out East though, some day...
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Re: Muncie question - Kicks out of 3rd gear
[Re: MadMopars]
#3191006
11/15/23 01:24 AM
11/15/23 01:24 AM
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Joined: Jan 2003
Posts: 7,490 Minnesota
Hemi_Joel
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I tried to get the party date changed, but that went over like a pig roast at a PETA convention. I wanted to add those 3 tracks to my list, especially Pomona.
[img]http://i.imgur.com/boeexFms.jpg[/img]31 Plymouth Coupe, 392 Hemi, T56 magnum RS23J71 RS27J77 RP23J71 RO23J71 WM21J8A I don't regret the things I've done. I only regret the things I didn't do. "Wise men talk because they have something to say; fools because they have to say something. ~ Plato"
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Re: Muncie question - Kicks out of 3rd gear
[Re: JERICOGTX]
#3191007
11/15/23 01:28 AM
11/15/23 01:28 AM
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Joined: Jan 2003
Posts: 7,490 Minnesota
Hemi_Joel
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Minnesota
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The best thing about a Muncie, is they are fairly light, making it easier to toss it into a dumpster. Well, that and that they power shift like a motocross bike. After I got used to banging gears with a Muncie, the doug nash and the 833 felt like a truck trans.
[img]http://i.imgur.com/boeexFms.jpg[/img]31 Plymouth Coupe, 392 Hemi, T56 magnum RS23J71 RS27J77 RP23J71 RO23J71 WM21J8A I don't regret the things I've done. I only regret the things I didn't do. "Wise men talk because they have something to say; fools because they have to say something. ~ Plato"
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Re: Muncie question - Kicks out of 3rd gear
[Re: Hemi_Joel]
#3191089
11/15/23 12:52 PM
11/15/23 12:52 PM
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Joined: Jan 2003
Posts: 20,177 Park Forest, IL
slantzilla
Too Many Posts
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Too Many Posts
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Posts: 20,177
Park Forest, IL
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The best thing about a Muncie, is they are fairly light, making it easier to toss it into a dumpster. Well, that and that they power shift like a motocross bike. After I got used to banging gears with a Muncie, the doug nash and the 833 felt like a truck trans. My experience was also that they shifted really well until they didn't shift at all.
"Everybody funny, now you funny too."
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Re: Muncie question - Kicks out of 3rd gear
[Re: slantzilla]
#3191119
11/15/23 02:18 PM
11/15/23 02:18 PM
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Joined: Jan 2003
Posts: 20,773 A collage of whims
topside
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A collage of whims
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Well, if we're talking about powershifting...over the last 50 years, I've had Toploaders, Muncies, T-10s, a T-5, a T-45, and numerous A833s in 23-spline and a couple 18-splines.
Of the bunch, the T-10 was my favorite for that; like throwing a switch. The yardstick, as exemplified by the Greats like Ken Dondero & etc, is no RPM flare, just next gear. The Tremecs and 833s require, for me at least, a more - shall we say - hostile attitude...
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