m22 4spd carnage (pics) - The 1947 - Present Chevrolet & GMC Truck Message Board Network

swb85 · 06-02-2006, 10:18 AM

My lil old 355 did quite a number on the poor "rockcrusher"

....and I was granny shifting it!

tgh117 · 06-02-2006, 11:58 AM

Ouch!

cliffsta · 06-02-2006, 11:59 AM

haha in the words of those crazy D**** commercials... SWEEEEET!

swb85 · 06-02-2006, 02:10 PM

Well after looking around a little on the web, I found out that previous owner=1, me=0. It's not an m22 like he said it was

, it's a run of the mill m21. M22's had straighter cut teeth than that. Guess I'm not so surprised now that it broke!

**Captkaos** · 06-02-2006, 02:14 PM

That sticks on the carnage.

Those gears aren't from a M22 "rockcrusher" though, the have to much angle in them.

79BIG10 · 06-02-2006, 07:05 PM

I've seen a a kit at a swap meet that you can change the gears on the M21 to make it a M22. Looks alike about time to get that kit.

Bishops Trucks · 06-02-2006, 07:16 PM

The Tooth Ferry made a killing in that trans. Makes me want to second guess putting my M-21 behind my 500+ H.P. 396 C.I.

Tom · 06-02-2006, 07:47 PM

Quote:

Originally Posted by Bishops Trucks

The Tooth Ferry made a killing in that trans. Makes me want to second guess putting my M-21 behind my 500+ H.P. 396 C.I.

Unless you've gone to 4speeds.com and bought most of the stuff they offer, yes re-thinking that would be a good idea

My M20 lasted 1 month the first time behind the old 385 and 3 months behind the vortec 350 being treated extremly easy [the second time at least

]

Did the tranny run low on oil? Both times I've killed my M20 I've never hurt the gears...

84slopwaggin · 06-02-2006, 10:41 PM

My buddy/co worker has a 70 GTO and it has a M21 and it still lives today. Motor has been rebuilt with larger cam and more compression and it handle all the gear banging and long smokey burnouts he can give it. I guess he's just lucky.

swb85 · 06-02-2006, 11:09 PM

Quote:

Originally Posted by Tom

Did the tranny run low on oil? Both times I've killed my M20 I've never hurt the gears...

Nope....was full of royal purple gear oil when it went. I did notice the input shaft had quite a bit of play in it and 3rd gear was always pretty noisy (hence me thinking I had an m22) so I think that input shaft play may have had something to do with it. I'm at least putting in a new 3rd gear, bearings and syncros.....maybe more depending on how it all looks.

Chevrolet4x4s · 06-02-2006, 11:22 PM

Get the straight cut racing type gears of an m22 rockcrusher......It was said that with the straight cut gears clutching was really an option......POWERSHIFTING

Shane

Tom · 06-04-2006, 02:04 PM

Sounds like you might have had happened what happened to me both times. The front bearing support in the aluminum case wears out and allows free play, causeing everything to come apart. I would suggest at least a supercase from 4speeds with the rebuild. Also, not sure why, but the muncie guru's say NOT to use synthetic oil in the muncies.

06-02-2006, 10:18 AM	#1
swb85 On a budget like Fred Sanford Join Date: Oct 2005 Location: Topeka, KS Posts: 2,031	m22 4spd carnage (pics) My lil old 355 did quite a number on the poor "rockcrusher" ....and I was granny shifting it! __________________ '85 Silverado swb: 383 stroker, 10.5:1, vortec heads, 232/238 roller cam, RPM air gap, performer 750 carb, stainless longtubes, 3" duals/super 44's, T56/4.11 383ci build / exterior refresh thread '98 Camaro z28: 370ci twin turbo 370ci build '01 Tahoe LT 4x4: 5.3, longtubes/ory, magnaflow duals, custom tune....wife's DD Last edited by swb85; 06-02-2006 at 10:30 AM.

06-02-2006, 11:58 AM	#2
tgh117 Crazy Join Date: Apr 2005 Location: Emmaus, Pa Posts: 203	Re: m22 4spd carnage (pics) Ouch! __________________ 77 SB Stepside in a bunch of pieces scattered around the garage.

06-02-2006, 11:59 AM	#3
cliffsta Stepsides RULE Join Date: Jul 2004 Location: Pineville, LA Posts: 1,921	Re: m22 4spd carnage (pics) haha in the words of those crazy D**** commercials... SWEEEEET! __________________ 1981 Chevy C10 Custom Deluxe Stepside 350 V8, headers, side exhausts, 3-speed auto SOLD 1980 Chevy C10 Custum Deluxe Stepside 305 V8, Edelbrock Performer Intake, Edelbrock 1406 600CFM 4-barrel, TH350C. Bent rod. SOLD 1984 GMC Sierra Classic Longbed 6.2L Diesel SOLD 2009 Kawasaki KLX-250S too many mods for this signature 1999 Honda Accord EX 4-cylinder, 17" Motegi Wheels 215/45/17 Sumitomo tires, Tein S-Tech lowering springs, KYB GR2 shocks, Acura TL 20mm rear swaybar, debadged, blackhoused headlights, Short-Ram Intake Cardomain of the Accord

06-02-2006, 02:10 PM	#4
swb85 On a budget like Fred Sanford Join Date: Oct 2005 Location: Topeka, KS Posts: 2,031	Re: m22 4spd carnage (pics) Well after looking around a little on the web, I found out that previous owner=1, me=0. It's not an m22 like he said it was , it's a run of the mill m21. M22's had straighter cut teeth than that. Guess I'm not so surprised now that it broke! __________________ '85 Silverado swb: 383 stroker, 10.5:1, vortec heads, 232/238 roller cam, RPM air gap, performer 750 carb, stainless longtubes, 3" duals/super 44's, T56/4.11 383ci build / exterior refresh thread '98 Camaro z28: 370ci twin turbo 370ci build '01 Tahoe LT 4x4: 5.3, longtubes/ory, magnaflow duals, custom tune....wife's DD

06-02-2006, 02:14 PM	#5
Captkaos www.73-87chevytrucks.com Join Date: Dec 1999 Location: Birmingham, AL Posts: 6,935	Re: m22 4spd carnage (pics) That sticks on the carnage. Those gears aren't from a M22 "rockcrusher" though, the have to much angle in them. __________________ Chris Lucas 1973 Chevy C-10 1978 GMC Jimmy (2WD) - SOLD 1987 R10 twin turbo LS 1991 R3500 SRW CrewCab 1985 K5 diesel swapped project 1989 K5 2WD conversion w/ Vette susp Project Captkaos Customs 73-87chevytrucks.com

06-02-2006, 07:05 PM	#6
79BIG10 I'm back with 2nd truck! Join Date: Feb 2002 Location: Texas Posts: 3,774	Re: m22 4spd carnage (pics) I've seen a a kit at a swap meet that you can change the gears on the M21 to make it a M22. Looks alike about time to get that kit. __________________ 1979 Chevrolet Bonanza Big10 "Tootsie Roll" 1985 Chevrolet Silverado (wife's) Member of the Southern Bowties Club "Don't underestimate how sexy a fat man who drinks to excess can be." Homer Simpson

06-02-2006, 07:16 PM	#7
Bishops Trucks KEEP ON TRUCKIN' Join Date: Jun 2005 Location: Sterling, Va. Posts: 5,730	Re: m22 4spd carnage (pics) The Tooth Ferry made a killing in that trans. Makes me want to second guess putting my M-21 behind my 500+ H.P. 396 C.I. __________________ JIM '97 GMC Sierra K1500 '95 Chevy Silverado C1500 '71 Cheyenne Z71 / LT1 & 4-Speed SWB K/10 Father/Son Project http://www.youtube.com/watch?v=4l689JKXPnA http://67-72chevytrucks.com/vboard/payments.php "LIVIN' FREE FOREVER"

06-02-2006, 10:41 PM	#9
84slopwaggin Registered User Join Date: Apr 2005 Location: Ar Posts: 558	Re: m22 4spd carnage (pics) My buddy/co worker has a 70 GTO and it has a M21 and it still lives today. Motor has been rebuilt with larger cam and more compression and it handle all the gear banging and long smokey burnouts he can give it. I guess he's just lucky.

06-02-2006, 11:22 PM	#11
Chevrolet4x4s Registered User Join Date: Nov 2005 Location: WV Posts: 227	Re: m22 4spd carnage (pics) Get the straight cut racing type gears of an m22 rockcrusher......It was said that with the straight cut gears clutching was really an option......POWERSHIFTING Shane __________________ 1993 K1500 350 5 speed 1985 K10 Silverado Vortec 406 5 speed (in body shop) "I been drivin' this '85 pickup truck Them buddies of mine call it a bucket of rust She's a little beat up but she still runs like the wind Yeah, kinda like me I been banged and bruisedBeen around the block a time or two But I'm runnin' like new goin' places I never been No, I ain't broke I'm just broken in" 1963 Dodge Townwagon(its amazng what 30 years and zero miles will do to a vehicle ) Member#20327

06-04-2006, 02:04 PM	#12
Tom driving is in my blood Join Date: Dec 1999 Location: Mesa AZ Posts: 5,748	Re: m22 4spd carnage (pics) Sounds like you might have had happened what happened to me both times. The front bearing support in the aluminum case wears out and allows free play, causeing everything to come apart. I would suggest at least a supercase from 4speeds with the rebuild. Also, not sure why, but the muncie guru's say NOT to use synthetic oil in the muncies. __________________ -78 c10 short/step: 388cid, M20, 5/5 drop, lots more. Playtoy and first vehicle. -98 c1500 x-cab: 5.7L, 17" rims, 5/6 drop, flowmaster, helper bags,NBS rear disk brakes. -02 Suburban 4x4: leveled front -CBR600F4i, CBR600RR, CBR1000RR, and standup skis DISCLAIMER: I cant spell for the life of me.

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