Narrowing Dana 60
#902043
01/11/11 02:11 PM
01/11/11 02:11 PM
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Joined: Jan 2004
Posts: 4,597
Motor City
6PKRTSE
OP
master
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OP
master
Joined: Jan 2004
Posts: 4,597
Motor City
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Anyone have any picture or narrow your own Dana or 8-3/4? I am getting ready to narrow mine for my Challenger. I have the new ends & new spring perches. What did you guys do for a fixture to hold everything true & centered. Just looking for idea's. I think I know how I am going to do it. Another idea or two never hurts.
1963 Belvedere 440 Max Wedge Tribute
1970 Charger R/T S.E. 440 Six Pack
1970 Challenger R/T, 528 Hemi
1970 Charger 500 S.E. 440 4 BBL
1970 Plymouth Road Runner 383
1974 Chrysler New Yorker 440
1996 2500 RAM 488 V-10 4X4
2004 3500 Dually Cummins 4x4
2012 Challenger R/T Classic.
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Re: Narrowing Dana 60
[Re: PLUM BAD]
#902048
01/12/11 12:25 AM
01/12/11 12:25 AM
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Joined: Aug 2003
Posts: 43,394
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,394
Bend,OR USA
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Quote:
Have you check that rear end for square off of the new bearing flanges yet? If not you probally should  I had my Dana 60 narrowed buy a shop that uses those, it is 1/2 inch narrower in the front 30 inches out and similar differences top to bottom    I called the shop and they siad to take it to Dutchmens in Portland and have them straighten it out  Another local shop that uses those also said he has to straighten every rear end he does(narrows), Ford, Chevy, Mopars, Dana or any other ones he does   I have Ford nine inch (don't tell Quicktree   )that is going into my 1940 Ford street rod that needs narrowing, I will take it and the Dana 60 to Dutchmen to do, narrow and straighten the nine inch and straighten the Dana 60 
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Narrowing Dana 60
[Re: Cab_Burge]
#902049
01/12/11 12:48 AM
01/12/11 12:48 AM
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Joined: Oct 2006
Posts: 1,265
New York, USA
Chargerfan68
pro stock
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pro stock
Joined: Oct 2006
Posts: 1,265
New York, USA
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Quote:
Quote:
Have you check that rear end for square off of the new bearing flanges yet? If not you probally should I had my Dana 60 narrowed buy a shop that uses those, it is 1/2 inch narrower in the front 30 inches out and similar differences top to bottom I called the shop and they siad to take it to Dutchmens in Portland and have them straighten it out Another local shop that uses those also said he has to straighten every rear end he does(narrows), Ford, Chevy, Mopars, Dana or any other ones he does I have Ford nine inch (don't tell Quicktree )that is going into my 1940 Ford street rod that needs narrowing, I will take it and the Dana 60 to Dutchmen to do, narrow and straighten the nine inch and straighten the Dana 60
How can the flanges NOT be square and true...that is what that fixture is for?? Every narrowing shop that I know of uses that type of fixture. If it is a quality narrowing tool and checked for damage before using, I would think the rear would be straight and true.
Just commenting and asking.
Greg.
1.50 60Ft. , 10.75@ 127MPH Hauling 3900 LBS.
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Re: Narrowing Dana 60
[Re: Chargerfan68]
#902050
01/12/11 01:43 AM
01/12/11 01:43 AM
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Joined: Jan 2007
Posts: 289
So. IL. USA
PLUM BAD
enthusiast
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enthusiast
Joined: Jan 2007
Posts: 289
So. IL. USA
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Have you check that rear end for square off of the new bearing flanges yet? If not you probally should I had my Dana 60 narrowed buy a shop that uses those, it is 1/2 inch narrower in the front 30 inches out and similar differences top to bottom I called the shop and they siad to take it to Dutchmens in Portland and have them straighten it out Another local shop that uses those also said he has to straighten every rear end he does(narrows), Ford, Chevy, Mopars, Dana or any other ones he does I have Ford nine inch (don't tell Quicktree )that is going into my 1940 Ford street rod that needs narrowing, I will take it and the Dana 60 to Dutchmen to do, narrow and straighten the nine inch and straighten the Dana 60
How can the flanges NOT be square and true...that is what that fixture is for?? Every narrowing shop that I know of uses that type of fixture. If it is a quality narrowing tool and checked for damage before using, I would think the rear would be straight and true.
Just commenting and asking.
Greg.
Thanks I was woundering the same thing. I used 1 3/8 in. solid and true shaft that was longer than the rearend so both sides are jigged at the same time off of the carrier bearing saddles. I could spin the shaft after the ends cooled off. If it weren't true, I doubt that the shaft would spin. It would be in a bind.
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Re: Narrowing Dana 60
[Re: PLUM BAD]
#902052
01/12/11 01:53 AM
01/12/11 01:53 AM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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I made up pucks just like yours and I also use a long straight edge to measure out at about 20" front and rear then turn them for up and down just to make sure and the diffs I have done are fine... I even check them off the axle flange 20" out in both directions just to be sure 
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Re: Narrowing Dana 60
[Re: 6PKRTSE]
#902054
01/12/11 11:25 AM
01/12/11 11:25 AM
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Joined: Jan 2003
Posts: 3,880
Smyrna, South Carolina
STEFF
master
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master
Joined: Jan 2003
Posts: 3,880
Smyrna, South Carolina
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Quote:
Anyone have any picture or narrow your own Dana or 8-3/4? I am getting ready to narrow mine for my Challenger. I have the new ends & new spring perches. What did you guys do for a fixture to hold everything true & centered. Just looking for idea's. I think I know how I am going to do it. Another idea or two never hurts.
I can do it for you. I have the mandrels & fixture shaft. PM me if interested.
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Re: Narrowing Dana 60
[Re: Cab_Burge]
#902056
01/12/11 07:34 PM
01/12/11 07:34 PM
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Joined: Sep 2003
Posts: 2,175
Duloc
The Shadow
top fuel
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top fuel
Joined: Sep 2003
Posts: 2,175
Duloc
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Quote:
Quote:
Who cares if the bearing flanges are square?
I care, I like my tires to be square with the rear end, not toed in or out  That makes it a little easeir to make the car go straight down the track when the front wheels are in the air Little things can mean a lot
I don't know about your rear end but on the one I have all the bearing flanges do is hold the brake backing plate on.
Now ,the bearing bore must be square and true
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Re: Narrowing Dana 60
[Re: The Shadow]
#902057
01/12/11 09:01 PM
01/12/11 09:01 PM
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Joined: Mar 2005
Posts: 2,172
Ohio
theclutcher
top fuel
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top fuel
Joined: Mar 2005
Posts: 2,172
Ohio
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Quote:
Quote:
Quote:
Who cares if the bearing flanges are square?
I care, I like my tires to be square with the rear end, not toed in or out That makes it a little easeir to make the car go straight down the track when the front wheels are in the air Little things can mean a lot
I don't know about your rear end but on the one I have all the bearing flanges do is hold the brake backing plate on.
Now ,the bearing bore must be square and true
Ok, just holds the brake hardware on...
If the flange is perpendicular to the bore,the flange will be in spec.
if not, caliper not in same plane as brake disc... = wear and tear.
Drum somewhat forgiving but....
Some forgiveness in bore center alignment but good indicator of that is flange runout.
Flange runout can very some also from warpage during welding, not likely but potential.
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Re: Narrowing Dana 60
[Re: theclutcher]
#902058
01/12/11 09:31 PM
01/12/11 09:31 PM
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Joined: Apr 2005
Posts: 12,271
Overpriced Housing Central
RobX4406
I Live Here
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I Live Here
Joined: Apr 2005
Posts: 12,271
Overpriced Housing Central
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If I got my math right, 1/4" (1/2 of the observed measurement) out 30" out is less than 1/2 degree. sin of that angle is .0083330444544. The sin value for a 1* angle is .0174. So the total out is less than 1* if at 1/2", 30" out. Nothing like a little trig for a Wed afternoon... Some Old Hippie, Caught Another Hippie, Tripping On Acid 
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