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Recommendations on clutches #3103998
12/20/22 04:14 PM
12/20/22 04:14 PM
Joined: Feb 2007
Posts: 615
High Plains of South Dakota
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olwhite64 Offline OP
mopar
olwhite64  Offline OP
mopar
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High Plains of South Dakota
I took apart my 71 RR clone as it has a severe rear main seal leak; no surprise the clutch is also soaked and in my opinion, now useless.

Looking for recommendations on a replacement. It is currently a 10.5" B&B with a McLeod disc. Engine is a bone stock '71 440, 23 spline 833, 8 3/4" rear w/ 3.55 gears. I run radial T/A's on the car, size 275/60/15 - this really is a street car that will never see slicks.

I do want something that will bite though as I do pound on it - recommendations Gents?

Re: Recommendations on clutches [Re: olwhite64] #3104044
12/20/22 06:55 PM
12/20/22 06:55 PM
Joined: Jan 2003
Posts: 9,100
Tucson, AZ
Ramrod39 Offline
My New Title
Ramrod39  Offline
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Posts: 9,100
Tucson, AZ
I would go Centerforce.

Re: Recommendations on clutches [Re: olwhite64] #3104059
12/20/22 07:46 PM
12/20/22 07:46 PM
Joined: Jan 2003
Posts: 5,435
So Cal
Sinitro Online content
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So Cal
If U want to replace it with a Borg Beck pressure plate, there are only (2) suppliers Hays and Ram clutches..

Just my $0.02... wink

Re: Recommendations on clutches [Re: Ramrod39] #3104063
12/20/22 07:57 PM
12/20/22 07:57 PM
Joined: Oct 2003
Posts: 3,999
South Park, Pa.
68LAR Offline
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South Park, Pa.
Originally Posted by Ramrod39
I would go Centerforce.
. X 2. Dual friction.


4 speed street legal. Best time 10.99 @ 124 mph on 93 octane pump gas @ 3926# total weight
Re: Recommendations on clutches [Re: 68LAR] #3104099
12/20/22 09:35 PM
12/20/22 09:35 PM
Joined: Oct 2005
Posts: 4,935
WI
Dcuda69 Offline
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WI
Originally Posted by 68LAR
Originally Posted by Ramrod39
I would go Centerforce.
. X 2. Dual friction.


X3. I've had one behind a low deck stroker in my street toy for years....zero issues.

Re: Recommendations on clutches [Re: Dcuda69] #3104176
12/21/22 07:26 AM
12/21/22 07:26 AM
Joined: Jan 2003
Posts: 6,363
Abilene, Texas
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fastmark Offline
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Abilene, Texas
I’ve installed one McLeod diaphragm type in a 70 RR. The release rate was terrible. It was light sure enough. That’s what the lady wanted. It was too fast and you could not slowly release it so the car was not smooth. I’ve talked to McLeod about is and there is nothing they can do about that. I had another customer with a 69 Bee. It already had a Centerforce diaphragm. It was better but not by much. Another friend bought a brand new Centerforce and hated it so bad, he install a parts store Borg and Beck style. It’s much better he says. My last build had a Centerforce in the car when it got to the shop. It was fair but same issue. The release rate is off from stock Mopar. A diaphragm clutch is a Chevy design. It’s just a different release rate. So this last customer bought a Ram Borg and Beck. He loves it. I drove it. It works like a Mopar clutch should. Now the absolute best clutch I’ve ever driven is a McLeod twin disc that was the Long style fingers. It is as smooth as butter, not hard to push down, the release point is perfect and best of all, it holds a 680 HP hemi! It is a little pricey. So my vote is for the Mopar style Borg and Beck from Ram.

Re: Recommendations on clutches [Re: olwhite64] #3104184
12/21/22 09:22 AM
12/21/22 09:22 AM
Joined: Dec 2018
Posts: 88
IL
8
83hurstguy Offline
member
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IL
We use the Ram Powergrip HD's and they take some abuse. I saw a brand new Centerforce have the pedal go to the floor on the fourth pass of a mid-13 second car on polyglas tires this fall...

Re: Recommendations on clutches [Re: 83hurstguy] #3104193
12/21/22 10:09 AM
12/21/22 10:09 AM
Joined: Jan 2003
Posts: 21,050
Niles , Ohio
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therocks Offline
oh wait.but hey.lets see.oh yeah.
therocks  Offline
oh wait.but hey.lets see.oh yeah.
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Joined: Jan 2003
Posts: 21,050
Niles , Ohio
Ran Mc Cleod for years.Then went center force.Will never go back to another.Mines been in for years now and still like new.Only time Ive seen people have problems is not setup or broke in correct.That and many are still used to having a ton of leg pressure


Chrysler Firepower
Re: Recommendations on clutches [Re: 83hurstguy] #3104205
12/21/22 10:57 AM
12/21/22 10:57 AM
Joined: Feb 2003
Posts: 10,177
Someplace you aren't
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SomeCarGuy Offline
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Someplace you aren't
Originally Posted by 83hurstguy
We use the Ram Powergrip HD's and they take some abuse. I saw a brand new Centerforce have the pedal go to the floor on the fourth pass of a mid-13 second car on polyglas tires this fall...


They do that with the over center spring still in place. Funny action until you get that out of there. Can’t adjust it to work right, goes to floor. All of that.


I want my fair share
Re: Recommendations on clutches [Re: fastmark] #3104263
12/21/22 02:54 PM
12/21/22 02:54 PM
Joined: Jan 2003
Posts: 5,435
So Cal
Sinitro Online content
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So Cal
Originally Posted by fastmark
I’ve installed one McLeod diaphragm type in a 70 RR. The release rate was terrible. It was light sure enough. That’s what the lady wanted. It was too fast and you could not slowly release it so the car was not smooth. I’ve talked to McLeod about is and there is nothing they can do about that. I had another customer with a 69 Bee. It already had a Centerforce diaphragm. It was better but not by much. Another friend bought a brand new Centerforce and hated it so bad, he install a parts store Borg and Beck style. It’s much better he says. My last build had a Centerforce in the car when it got to the shop. It was fair but same issue. The release rate is off from stock Mopar. A diaphragm clutch is a Chevy design. It’s just a different release rate. So this last customer bought a Ram Borg and Beck. He loves it. I drove it. It works like a Mopar clutch should. Now the absolute best clutch I’ve ever driven is a McLeod twin disc that was the Long style fingers. It is as smooth as butter, not hard to push down, the release point is perfect and best of all, it holds a 680 HP hemi! It is a little pricey. So my vote is for the Mopar style Borg and Beck from Ram.


Over the years we have run different brand clutches in our RoadRunner...
Hays, CenterForce, McLeod..
The best one for endurance was the McLeod, worst was the CenterForce.
Then last year we changed out the 4-speed to an manual w/overdrive, and since we had the drive train apart we decided to install a new clutch pressure plate, disk and flywheel. But found out that McLeod no longer supplied a Borg Beck pressure plate so we talked with Ram and they put together a mixed kit and install went fine. All is well, clutch grabs good, reasonable pedal pressure.

Just my $0.02... wink

Re: Recommendations on clutches [Re: Sinitro] #3104284
12/21/22 04:29 PM
12/21/22 04:29 PM
Joined: Aug 2003
Posts: 2,463
Answering the call of the wild
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ThermoQuad Offline
top fuel
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Posts: 2,463
Answering the call of the wild
I would call Rochester Clutch and Brake, Rochester NY and get a custom 10.95 with a 6 puck disk

Picture 006.jpg
Re: Recommendations on clutches [Re: olwhite64] #3104375
12/21/22 10:45 PM
12/21/22 10:45 PM
Joined: Jan 2003
Posts: 15,193
Omaha Ne
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TJP Online content
I Live Here
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Omaha Ne
have installed MNAY C/F Dual frictions in customers car in 25 or so years, One problem. A mis sized disc to PP.
So I say CF beer

Re: Recommendations on clutches [Re: olwhite64] #3104543
12/22/22 12:57 PM
12/22/22 12:57 PM
Joined: Feb 2012
Posts: 4,443
Morristown Tn.
7
71birdJ68 Offline
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Posts: 4,443
Morristown Tn.
Just one thing, dual friction clutch dics hate stop and go driving.

Re: Recommendations on clutches [Re: fastmark] #3104550
12/22/22 01:09 PM
12/22/22 01:09 PM
Joined: Mar 2007
Posts: 3,275
West Coast, USA
jbc426 Offline
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Posts: 3,275
West Coast, USA
Originally Posted by fastmark
I’ve installed one McLeod diaphragm type in a 70 RR. The release rate was terrible. It was light sure enough. That’s what the lady wanted. It was too fast and you could not slowly release it so the car was not smooth. I’ve talked to McLeod about is and there is nothing they can do about that. I had another customer with a 69 Bee. It already had a Centerforce diaphragm. It was better but not by much. Another friend bought a brand new Centerforce and hated it so bad, he install a parts store Borg and Beck style. It’s much better he says. My last build had a Centerforce in the car when it got to the shop. It was fair but same issue. The release rate is off from stock Mopar. A diaphragm clutch is a Chevy design. It’s just a different release rate. So this last customer bought a Ram Borg and Beck. He loves it. I drove it. It works like a Mopar clutch should. Now the absolute best clutch I’ve ever driven is a McLeod twin disc that was the Long style fingers. It is as smooth as butter, not hard to push down, the release point is perfect and best of all, it holds a 680 HP hemi! It is a little pricey. So my vote is for the Mopar style Borg and Beck from Ram.


X2 on the McLeod Twin Disc. Icing on the cake is the American Powertrain Hydraulic throw-out bearing set-up. Never had much luck with anything else, and the sintered puck clutches I tried chattered very bad on release.


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)
Re: Recommendations on clutches [Re: olwhite64] #3104589
12/22/22 03:29 PM
12/22/22 03:29 PM
Joined: Aug 2003
Posts: 43,007
Bend,OR USA
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Cab_Burge Offline
I Win
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Posts: 43,007
Bend,OR USA
If you do switch to a diaphragm type pressure plate, make sure and remove the over center spring on the clutch pedal under the dash scope wrench up


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Recommendations on clutches [Re: Cab_Burge] #3104621
12/22/22 05:06 PM
12/22/22 05:06 PM
Joined: Jan 2003
Posts: 43,458
Round Lake Beach, Illinoisy
Rhinodart Offline
Rhinotruck
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Posts: 43,458
Round Lake Beach, Illinoisy
I will NEVER again use a diaphram Chivvy type clutch, borg and beck or give me death... tsk


The funny thing about science is that if you change one miniscule parameter you change the entire outcome to the way you want it.

JB Rhinehart, Realist

A-Body's RULE!
Re: Recommendations on clutches [Re: Rhinodart] #3104642
12/22/22 06:20 PM
12/22/22 06:20 PM
Joined: Aug 2003
Posts: 43,007
Bend,OR USA
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Cab_Burge Offline
I Win
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Posts: 43,007
Bend,OR USA
Originally Posted by Rhinodart
I will NEVER again use a diaphram Chivvy type clutch, borg and beck or give me death... tsk
How about Long (Ford) style?


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Recommendations on clutches [Re: Cab_Burge] #3104645
12/22/22 06:26 PM
12/22/22 06:26 PM
Joined: May 2019
Posts: 6,174
nowhere
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Sniper Offline
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Never had a problem with diaphragm clutches, they were factory on a lot of Mopars BTW, nor have I ever had to remove the over center spring. But then again, I do not use the pedal free play method of setting up the clutch either. I use plate departure and go for .060" of a gap with the pedal to the floor.

Re: Recommendations on clutches [Re: Cab_Burge] #3104655
12/22/22 06:58 PM
12/22/22 06:58 PM
Joined: Jan 2003
Posts: 43,458
Round Lake Beach, Illinoisy
Rhinodart Offline
Rhinotruck
Rhinodart  Offline
Rhinotruck

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Posts: 43,458
Round Lake Beach, Illinoisy
Originally Posted by Cab_Burge
Originally Posted by Rhinodart
I will NEVER again use a diaphram Chivvy type clutch, borg and beck or give me death... tsk
How about Long (Ford) style?


Long is still a three finger style, no issue with it! Don't know why people want a weak diaphram style, I am just old school I guess, never had an issue with a B&B...


The funny thing about science is that if you change one miniscule parameter you change the entire outcome to the way you want it.

JB Rhinehart, Realist

A-Body's RULE!
Re: Recommendations on clutches [Re: Rhinodart] #3104747
12/22/22 11:51 PM
12/22/22 11:51 PM
Joined: Jan 2003
Posts: 15,193
Omaha Ne
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TJP Online content
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Omaha Ne
At 68 I too am Old school but after my first C/F install I started asking myself why i needed my L leg to be so much bigger LOL. Then there was repairing reinforcing the frame pivots etc. I finally caved and the customers have been very happy with them beer

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