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#2444785 - 02/01/18 03:47 PM Adjustable or Non-adjustable Clutch Advise Needed
moparpoolman Offline
enthusiast

Registered: 11/27/06
Posts: 321
Loc: NE
After seeing the "Soft Lok Thread", I didn't want to hijack so started a new one.
I keep breaking the 18 spline A833, blow all the teeth off third gear on the cluster. Broke 3 in the last 8 years only going to the track about 5 times a year. Car is a 68 Plymouth b body, A833 with a centerforce clutch, 420HP to the rear tires with a 4.10 Dana that I don't drive on the street?
Is an adjustable clutch my answer? What other adjustable clutches like a McLeod Soft Lok are available? The "clutchtamer"
http://clutchtamer.com/
sounds interesting, anyone run one?
I'm wondering what I should do?? Different disc? get away from the cenerforce and go with a regular Ram or Mcleod? switch to an adjustable clutch? or maybe try a clutchtamer with it the centerforce??? The more I research it the more confused I'm getting, HELP?

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#2444787 - 02/01/18 03:50 PM Re: Adjustable or Non-adjustable Clutch Advise Needed [Re: moparpoolman]
madscientist Offline


Registered: 09/17/14
Posts: 2140
Loc: Washington
I run an adjustable. When I started with a sintered iron disc I couldn't get an adjustable pressure plate.

Would you want a carb you couldn't tune? Clutch is the same. I'd rather have an adjustable clutch.
_________________________
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston

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#2444789 - 02/01/18 03:52 PM Re: Adjustable or Non-adjustable Clutch Advise Needed [Re: moparpoolman]
Racer33 Offline
member

Registered: 10/04/11
Posts: 166
Loc: Norfolk, NE
I'm glad you asked this because I'm feeling the same way. I am about to convert my Duster back to 4 speed and would like to be able to run both street and strip.

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#2444805 - 02/01/18 04:24 PM Re: Adjustable or Non-adjustable Clutch Advise Needed [Re: moparpoolman]
68LAR Offline
master

Registered: 10/10/03
Posts: 3740
Loc: South Park, Pa.
Originally Posted By moparpoolman
After seeing the "Soft Lok Thread", I didn't want to hijack so started a new one.
I keep breaking the 18 spline A833, blow all the teeth off third gear on the cluster. Broke 3 in the last 8 years only going to the track about 5 times a year. Car is a 68 Plymouth b body, A833 with a centerforce clutch, 420HP to the rear tires with a 4.10 Dana that I don't drive on the street?
Is an adjustable clutch my answer? What other adjustable clutches like a McLeod Soft Lok are available? The "clutchtamer"
http://clutchtamer.com/
sounds interesting, anyone run one?
I'm wondering what I should do?? Different disc? get away from the cenerforce and go with a regular Ram or Mcleod? switch to an adjustable clutch? or maybe try a clutchtamer with it the centerforce??? The more I research it the more confused I'm getting, HELP?


I have a '68 Roadrunner with a stock (except slick shifted)18 spline tranny. I also run a Center force. I have NEVER broken a tranny part. I run several races a year(around 7-10). Engine makes around 600+ hp and I also run a Dana but with 4.56 gears. Car weighs in around 3926 with me in it. My car is mostly street driven. I do run slicks when racing.??????????

Plus. How do you shift (granny shift or power shift)? Granny shifting is very hard on gears.


Edited by 68LAR (02/01/18 05:19 PM)

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#2444847 - 02/01/18 05:38 PM Re: Adjustable or Non-adjustable Clutch Advise Needed [Re: 68LAR]
moparpoolman Offline
enthusiast

Registered: 11/27/06
Posts: 321
Loc: NE
Originally Posted By 68LAR
Originally Posted By moparpoolman
After seeing the "Soft Lok Thread", I didn't want to hijack so started a new one.
I keep breaking the 18 spline A833, blow all the teeth off third gear on the cluster. Broke 3 in the last 8 years only going to the track about 5 times a year. Car is a 68 Plymouth b body, A833 with a centerforce clutch, 420HP to the rear tires with a 4.10 Dana that I don't drive on the street?
Is an adjustable clutch my answer? What other adjustable clutches like a McLeod Soft Lok are available? The "clutchtamer"
http://clutchtamer.com/
sounds interesting, anyone run one?
I'm wondering what I should do?? Different disc? get away from the cenerforce and go with a regular Ram or Mcleod? switch to an adjustable clutch? or maybe try a clutchtamer with it the centerforce??? The more I research it the more confused I'm getting, HELP?


I have a '68 Roadrunner with a stock (except slick shifted)18 spline tranny. I also run a Center force. I have NEVER broken a tranny part. I run several races a year(around 7-10). Engine makes around 600+ hp and I also run a Dana but with 4.56 gears. Car weighs in around 3926 with me in it. My car is mostly street driven. I do run slicks when racing.??????????

Plus. How do you shift (granny shift or power shift)? Granny shifting is very hard on gears.

Can you please explain how you granny shift and how you power shift? I always thought power shifting was harder on gears..but maybe I'm doing something wrong...by the way the most recent casualty was a Liberty Pro shift

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#2444876 - 02/01/18 06:41 PM Re: Adjustable or Non-adjustable Clutch Advise Needed [Re: moparpoolman]
68LAR Offline
master

Registered: 10/10/03
Posts: 3740
Loc: South Park, Pa.
Originally Posted By moparpoolman
Originally Posted By 68LAR
Originally Posted By moparpoolman
After seeing the "Soft Lok Thread", I didn't want to hijack so started a new one.
I keep breaking the 18 spline A833, blow all the teeth off third gear on the cluster. Broke 3 in the last 8 years only going to the track about 5 times a year. Car is a 68 Plymouth b body, A833 with a centerforce clutch, 420HP to the rear tires with a 4.10 Dana that I don't drive on the street?
Is an adjustable clutch my answer? What other adjustable clutches like a McLeod Soft Lok are available? The "clutchtamer"
http://clutchtamer.com/
sounds interesting, anyone run one?
I'm wondering what I should do?? Different disc? get away from the cenerforce and go with a regular Ram or Mcleod? switch to an adjustable clutch? or maybe try a clutchtamer with it the centerforce??? The more I research it the more confused I'm getting, HELP?


I have a '68 Roadrunner with a stock (except slick shifted)18 spline tranny. I also run a Center force. I have NEVER broken a tranny part. I run several races a year(around 7-10). Engine makes around 600+ hp and I also run a Dana but with 4.56 gears. Car weighs in around 3926 with me in it. My car is mostly street driven. I do run slicks when racing.??????????

Plus. How do you shift (granny shift or power shift)? Granny shifting is very hard on gears.



Can you please explain how you granny shift and how you power shift? I always thought power shifting was harder on gears..but maybe I'm doing something wrong...by the way the most recent casualty was a Liberty Pro shift




These are "old" terms. Granny shifting is very hard on gears because you "unload" and "load" the gears by lifting off the gas between shifts. Power shifting is done by keeping the gas pedal on the floor between shifts. No loading and unloading of the gears..

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#2444883 - 02/01/18 06:57 PM Re: Adjustable or Non-adjustable Clutch Advise Needed [Re: moparpoolman]
sgcuda Offline
master

Registered: 01/28/05
Posts: 3887
Loc: Charlotte, North Carolina
I ran a 600hp 440 in my Cuda weighing close to 3,000 pounds with 32x14 slicks. Used a Hemi box with Liberty lugs. I ran it with a Ram B&B plate, and metallic disc. Never had any issues running as fast as 9.90. I know some guys running heavy pressure plates are using a rag disc to soften the hit. That might be an option for you. If you are tearing up Hemi boxes on a regular basis, you will probably hurt a Nash tranny also. A Long style clutch might help. They are available preset, non adjustable. The problem is using an adjustable clutch in a stock body. To adjust the pressure plate, you have to remove the trans and bellhousing. And it is a constant maintenance item. Clutchtamer might be the answer, although I have always been skeptical on higher hp engines and how fast it would eat up a clutch.
_________________________
[image][/image]

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#2444894 - 02/01/18 07:12 PM Re: Adjustable or Non-adjustable Clutch Advise Needed [Re: sgcuda]
madscientist Offline


Registered: 09/17/14
Posts: 2140
Loc: Washington
Originally Posted By sgcuda
I ran a 600hp 440 in my Cuda weighing close to 3,000 pounds with 32x14 slicks. Used a Hemi box with Liberty lugs. I ran it with a Ram B&B plate, and metallic disc. Never had any issues running as fast as 9.90. I know some guys running heavy pressure plates are using a rag disc to soften the hit. That might be an option for you. If you are tearing up Hemi boxes on a regular basis, you will probably hurt a Nash tranny also. A Long style clutch might help. They are available preset, non adjustable. The problem is using an adjustable clutch in a stock body. To adjust the pressure plate, you have to remove the trans and bellhousing. And it is a constant maintenance item. Clutchtamer might be the answer, although I have always been skeptical on higher hp engines and how fast it would eat up a clutch.



Lakewood and evidently Hyatt will put a window in your bell housing. Then you don't have to pull all that stuff out.
_________________________
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston

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#2444911 - 02/01/18 07:50 PM Re: Adjustable or Non-adjustable Clutch Advise Needed [Re: 68LAR]
OhioMopar Offline
master

Registered: 08/17/03
Posts: 8206
Loc: Mt.Gilead, Ohio
Originally Posted By 68LAR
Power shifting is done by keeping the gas pedal on the floor between shifts. No loading and unloading of the gears..

Interesting. Dan Brewer told me to not power shift 3rd or there would be damage. Apparently 1st and 2nd are fine, just not 3rd.
_________________________

Looking for my original 383 block. Last seen around the Atlanta area. 7449 are the last 4 of the VIN.

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#2444990 - 02/01/18 10:18 PM Re: Adjustable or Non-adjustable Clutch Advise Needed [Re: 68LAR]
moparpoolman Offline
enthusiast

Registered: 11/27/06
Posts: 321
Loc: NE
Originally Posted By 68LAR


These are "old" terms. Granny shifting is very hard on gears because you "unload" and "load" the gears by lifting off the gas between shifts. Power shifting is done by keeping the gas pedal on the floor between shifts. No loading and unloading of the gears..

are you using the clutch? fully? or just tapping?

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#2445034 - 02/01/18 11:48 PM Re: Adjustable or Non-adjustable Clutch Advise Needed [Re: OhioMopar]
cudaman1969 Offline
master

Registered: 01/25/04
Posts: 4445
Loc: fredericksburg,va
Originally Posted By OhioMopar
Originally Posted By 68LAR
Power shifting is done by keeping the gas pedal on the floor between shifts. No loading and unloading of the gears..

Interesting. Dan Brewer told me to not power shift 3rd or there would be damage. Apparently 1st and 2nd are fine, just not 3rd.

Third is where the main shaft and imput mesh, slop-flex with those needle bearings. I've thought of using a bushing there instead.

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#2445041 - 02/02/18 12:31 AM Re: Adjustable or Non-adjustable Clutch Advise Needed [Re: cudaman1969]
madscientist Offline


Registered: 09/17/14
Posts: 2140
Loc: Washington
Originally Posted By cudaman1969
Originally Posted By OhioMopar
Originally Posted By 68LAR
Power shifting is done by keeping the gas pedal on the floor between shifts. No loading and unloading of the gears..

Interesting. Dan Brewer told me to not power shift 3rd or there would be damage. Apparently 1st and 2nd are fine, just not 3rd.

Third is where the main shaft and imput mesh, slop-flex with those needle bearings. I've thought of using a bushing there instead.



Did that. Didn't help.
_________________________
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston

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#2445156 - 02/02/18 09:45 AM Re: Adjustable or Non-adjustable Clutch Advise Needed [Re: madscientist]
cudaman1969 Offline
master

Registered: 01/25/04
Posts: 4445
Loc: fredericksburg,va
Originally Posted By madscientist
Originally Posted By cudaman1969
Originally Posted By OhioMopar
Originally Posted By 68LAR
Power shifting is done by keeping the gas pedal on the floor between shifts. No loading and unloading of the gears..

Interesting. Dan Brewer told me to not power shift 3rd or there would be damage. Apparently 1st and 2nd are fine, just not 3rd.

Third is where the main shaft and imput mesh, slop-flex with those needle bearings. I've thought of using a bushing there instead.



Did that. Didn't help.

Do you think the flex is from the main shaft or the input shaft since its riding on a ball bearing?

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#2445161 - 02/02/18 09:51 AM Re: Adjustable or Non-adjustable Clutch Advise Needed [Re: moparpoolman]
68LAR Offline
master

Registered: 10/10/03
Posts: 3740
Loc: South Park, Pa.
Originally Posted By moparpoolman
Originally Posted By 68LAR


These are "old" terms. Granny shifting is very hard on gears because you "unload" and "load" the gears by lifting off the gas between shifts. Power shifting is done by keeping the gas pedal on the floor between shifts. No loading and unloading of the gears..

are you using the clutch? fully? or just tapping?


Fully. Can't tap with stock tranny.

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#2445265 - 02/02/18 02:15 PM Re: Adjustable or Non-adjustable Clutch Advise Needed [Re: moparpoolman]
perfmachst Offline
member

Registered: 09/02/10
Posts: 170
Loc: renton , washington
power shifting is way easier on gears and drivetrain. what gear do you do burnout in? 2nd or 3rd? the soft loc clutch is best set up. you adjust the base from the back side. where trans bolts up. on mopar trans , I used upper right bolt hole to get to adjusters. on a jerico, requires a hole drilled in back of housing, you can do that in a drill press. power shifting into 3rd doesn't hurt it. comes down to release of clutch and shifter adjustment. I've ran stick cars for last 50 years, they were stockers.

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#2445312 - 02/02/18 03:29 PM Re: Adjustable or Non-adjustable Clutch Advise Needed [Re: OhioMopar]
rowin4 Offline
master

Registered: 06/30/05
Posts: 6088
Loc: gulfport, ms, west mi
Originally Posted By OhioMopar
Originally Posted By 68LAR
Power shifting is done by keeping the gas pedal on the floor between shifts. No loading and unloading of the gears..

Interesting. Dan Brewer told me to not power shift 3rd or there would be damage. Apparently 1st and 2nd are fine, just not 3rd.




Liberty gears told me the same thing. I hadn't have a problem until I upgraded my engine to 600 hp. Yep, 3rd gear blew out on the 3rd pass. Completely rebuilt the 833 with new bearings and replaced the broken gears . Tried that one more time . The rebuilt trans after 2 runs sounds like a bunch of bolts being shaken in a metal bucket. The power pushes the input and output shaft away from the 3rd gear = BOOM!!!!!!
_________________________
it's ok to butt heads, just don't do it with a butthead

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#2445324 - 02/02/18 03:59 PM Re: Adjustable or Non-adjustable Clutch Advise Needed [Re: moparpoolman]
RATTRAP Offline
pro stock

Registered: 03/28/05
Posts: 1396
Loc: N/E, Michigan
What gear ratio is in the trans you keep breaking is it a 2:65 or a 2:44

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#2445329 - 02/02/18 04:16 PM Re: Adjustable or Non-adjustable Clutch Advise Needed [Re: RATTRAP]
madscientist Offline


Registered: 09/17/14
Posts: 2140
Loc: Washington
Originally Posted By RATTRAP
What gear ratio is in the trans you keep breaking is it a 2:65 or a 2:44


I've broken the 2.65, 2.44 and a 3.09 boxes. All this crap about flex and not power shifting third is just that. Crap.

If you are breaking the gearbox your clutch is doing it. Most guys can run LESS than a 1000 pounds of static and tune with some counter weight and never break 3rd gear.
_________________________
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston

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#2445334 - 02/02/18 04:26 PM Re: Adjustable or Non-adjustable Clutch Advise Needed [Re: moparpoolman]
RATTRAP Offline
pro stock

Registered: 03/28/05
Posts: 1396
Loc: N/E, Michigan
I agree. I have learned clutching is every thing, I just hear that the 2:44 ratio is harder on parts, My self I've never damaged the 4 speed in my car but from what I have learned on the forum I will spend the money on an adjustable clutch and have the bell windowed for access.

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#2445341 - 02/02/18 04:42 PM Re: Adjustable or Non-adjustable Clutch Advise Needed [Re: RATTRAP]
madscientist Offline


Registered: 09/17/14
Posts: 2140
Loc: Washington
Originally Posted By RATTRAP
I agree. I have learned clutching is every thing, I just hear that the 2:44 ratio is harder on parts, My self I've never damaged the 4 speed in my car but from what I have learned on the forum I will spend the money on an adjustable clutch and have the bell windowed for access.



I was told the same thing. So, I prepped a 2.44 box and broke it. I'm as hard headed as an army mule, so I broke 8-9 boxes before I got sick of it and bought a clutch.

Damn I'm dumb. And a slow learner.
_________________________
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston

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