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#2390678 - 10/21/17 01:47 AM Re: 1972 340 4spd Cuda [Re: UCUDANT]
UCUDANT Offline
Troll Hunter

Registered: 01/20/03
Posts: 7869
Loc: New Mexico
...and did a little PCV tuning.


Attachments
tuning.jpg



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#2492486 - 05/05/18 03:09 PM Re: 1972 340 4spd Cuda [Re: UCUDANT]
UCUDANT Offline
Troll Hunter

Registered: 01/20/03
Posts: 7869
Loc: New Mexico
Next......


Attachments
oil pan.jpg



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#2567072 - 10/20/18 07:42 PM Re: 1972 340 4spd Cuda [Re: UCUDANT]
UCUDANT Offline
Troll Hunter

Registered: 01/20/03
Posts: 7869
Loc: New Mexico
blush My sure grip was coming apart/bolts backed out.


Attachments
Cuda Diff out.jpg

Sure grip bolts.jpg



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#2567555 - 10/21/18 09:50 PM Re: 1972 340 4spd Cuda [Re: UCUDANT]
GoodysGotaCuda Offline
5.7L Hemi, 6spd

Registered: 11/23/04
Posts: 24525
Loc: Texas
Dang!
_________________________
1972 Barracuda - 5.7L Hemi, T56 Magnum 6spd - https://www.facebook.com/GoodysGotaHemi
1976 Dodge Warlock - "Her Truck" - 360/727 2wd
1969 Dodge Dart Custom Sedan - Grandma Edition - 318/904
2016 Subaru WRX - E30 Tune ~320whp

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#2567718 - 10/22/18 08:47 AM Re: 1972 340 4spd Cuda [Re: UCUDANT]
rocksmopar Offline
mopar

Registered: 01/05/07
Posts: 503
Loc: Chicago
Was there a lot of noise, how did you figure that out?
_________________________


Searching for affordable E-Body parts

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#2567815 - 10/22/18 11:52 AM Re: 1972 340 4spd Cuda [Re: rocksmopar]
UCUDANT Offline
Troll Hunter

Registered: 01/20/03
Posts: 7869
Loc: New Mexico
Originally Posted By rocksmopar
Was there a lot of noise, how did you figure that out?

I'd try to accelerate and it would "break away" and act as if the clutch peddle were depressed. It would bang or clunk and the noise seemed to come from the rear.

EDIT: I've been busy, been out of state for a few days, one of my kids totaled her car (she is fine)...... It has just had to wait. Hell I finally just rolled under there in clean clothes saying we can have in out in 20 minutes....... I think we did. Anyway a quick look in and I need gears

Dr Diff is the man, my parts are on the way. He had the SG parts on hand and at half the price of a well known competitor....... I could have bought a whole new unit from Dr Diff (Cass) for what the other guys wanted for the parts. THANKS Cass


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#2571994 - 10/31/18 07:22 AM Re: 1972 340 4spd Cuda [Re: UCUDANT]
UCUDANT Offline
Troll Hunter

Registered: 01/20/03
Posts: 7869
Loc: New Mexico
Ok so I made some spanners to adjust the backlash etc.

I have the gears and clutches from Cass.

I will be picking up an old truck 8-3/4 to use the axle ends rebuilding the suregrip. I also intend to cut them short and have a buddy machine a hex on the end ao a a 6" cut length axle (opposite the spiles) so I can test a suregrips holding torque

Also have the FoMoCo limited slip additive to wet the clutches

Anything else?


Attachments
Sure grip diff spanners.jpg

Suregrip.jpg



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#2575681 - 11/07/18 10:30 PM Re: 1972 340 4spd Cuda [Re: UCUDANT]
UCUDANT Offline
Troll Hunter

Registered: 01/20/03
Posts: 7869
Loc: New Mexico
Just in case someone didn't know the ring gear and carrier bolts are LEFT HAND THREAD, someone I know looked surprised as I loosened a bolt laugh2


sawzall making some more tools to work on or test sure grips..... I'm just waiting on a U-joint and a new thrust button but I can rebuild it anytime now then and the U-joint and thrust button should be here by Fri night. Both axle stubs will accept a 1/2" drive breaker bar or torque wrench to test SG's. My welding is improving smile I wouldn't have ground/smoothed the welds but the close tolerance of the holder required a few minor high points be reduced to fit so I made it pretty. I even bought some ARP SG bolts and LH thread taps/thread chasers.


Attachments
diff tools.jpg

sure grip apart.jpg



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#2578142 - 11/13/18 07:48 PM Re: 1972 340 4spd Cuda [Re: UCUDANT]
UCUDANT Offline
Troll Hunter

Registered: 01/20/03
Posts: 7869
Loc: New Mexico
So I recently saw a member of another Mopar board ground the inner section of his carrier bearings to remove them because he said he couldn't get the bearing splitter between the case and bearing.

That's a non issue I used a small bearing splitter to grab the upper lip of the same inner section of the bearing after cutting the "cage" off. I then found a bearing installation tool that fit the carrier and allowed me to push against the carrier and pull the remaining bearing section off.


I cleaned, cleaned and cleaned the unit.

I bought LH 3/8th 24 taps and thread chasers just for this job.....

I temp assembled the case to press the new bearings on.


Attachments
Puller .jpg

Clean and chase threads.jpg

New Bearings.jpg



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#2578146 - 11/13/18 08:03 PM Re: 1972 340 4spd Cuda [Re: UCUDANT]
UCUDANT Offline
Troll Hunter

Registered: 01/20/03
Posts: 7869
Loc: New Mexico
The carrier bearing for a CLUTCH type sure grip is a Timkin PN 25590. (the race is P/N 25520)

The AZ Duralast has the same P/N, but the box said made in China..... the part said USA. I'll take it

The new sure grip side/spider gears that Dr Diff sells are an up-grade and provide more spline engagement.

up

The thrust button should measure 1.500 when new, if it's worn more than 0.010 replace it

ARP bolts p/n 250-3006 are made for the Mopar clutch type sure grip


Attachments
Bearing said Chine but is US.jpg

Side Gear comparison.jpg

thrust button.jpg

Arp bolts.png



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#2578168 - 11/13/18 08:35 PM Re: 1972 340 4spd Cuda [Re: UCUDANT]
UCUDANT Offline
Troll Hunter

Registered: 01/20/03
Posts: 7869
Loc: New Mexico
If anyone plans to rebuild (or replace) a sure grip, I highly suggest you call Moparts board member Cass/Dr. Diff for your parts needs.

I have a FSM but found the Mopar Action August 2016 issue to be very informative.

My axle tools worked great too


Attachments
Mopar Action.jpg

Sure grip done.jpg



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#2582310 - 11/24/18 09:36 AM Re: 1972 340 4spd Cuda [Re: UCUDANT]
UCUDANT Offline
Troll Hunter

Registered: 01/20/03
Posts: 7869
Loc: New Mexico
Lesson's learned, the ARP sure grip bolts contacted the inside of my carrier housing when the supplied washers were used, so I had to completely disassemble the sure grip, re-chase the threads to clean the loctite etc to remove and reinstall the ARP bolts.

There are some seals out there that parts stores will cross as the same as the pinion seal based on the case and seal dimensions but the seals outer lip is larger and it will contact the yokes seal shield.

I made this simple but effective bucket stand to work on it.


Attachments
Diff.jpg



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