Re: Questions on 8 3/4 axle in 64 Polara
[Re: MOPAR_AMC_FAN]
#889777
12/27/10 07:58 PM
12/27/10 07:58 PM
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Joined: Jan 2003
Posts: 4,285 Ohio
64dodge572
master
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master
Joined: Jan 2003
Posts: 4,285
Ohio
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You must replace the housing/axles. 1966-67 B-body is the assembly you want, and it will be a bolt-in change, track will be slightly (1") narrower.
Wayne
Brewers Performance Inc. 4-speed transmission and parts specialists PH 937-947-4416 or 937-698-4259 FAX 937-947-4419 www.brewersperformance.com
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Re: Questions on 8 3/4 axle in 64 Polara
[Re: MOPAR_AMC_FAN]
#889778
12/27/10 08:45 PM
12/27/10 08:45 PM
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Joined: Jan 2003
Posts: 25,743 Rio Linda, CA
John_Kunkel
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 25,743
Rio Linda, CA
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Board member Doctor Diff can supply you with flanged axles to fit your current housing, you'll have to scrounge the brake backing plates and drums from a '65 or later. http://www.doctordiff.com/
The INTERNET, the MISinformation superhighway
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Re: Questions on 8 3/4 axle in 64 Polara
[Re: 64dodge572]
#889779
12/27/10 08:53 PM
12/27/10 08:53 PM
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Joined: May 2003
Posts: 15,487 Florida
scratchnfotraction
I Live Here
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I Live Here
Joined: May 2003
Posts: 15,487
Florida
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you can get a new set of axle with the modern flange and large brake offset to go in the 8 3/4 housing you have I used a early A-body keyed axle 8 3/4 housing with a set of moser axles and run large c-body brakes and backing plates 11x2.5 drums 5on4.5 wbp DrDiff has the axles also some of the older 8 3/4 chunks are diff on the splines or something but think its the early 57 to early 60 8 3/4 though shoot dr diff a PM and he can set you straight on the chunk and axle thing dont swap housing unless its a gotta be thing and save some coin my axles were about 299$ a set with non adjustable green bearings now that A-body axle is bolted in the truck to tuck 12" rims in the fenders
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Re: Questions on 8 3/4 axle in 64 Polara
[Re: badblack68]
#889783
12/27/10 11:27 PM
12/27/10 11:27 PM
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Joined: Feb 2006
Posts: 76 Port St Lucie, Florida
towguy76
member
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member
Joined: Feb 2006
Posts: 76
Port St Lucie, Florida
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how big a pain is it to work on those with the 2 piece axles? I just bought a 56 Dodge 1/2 ton truck and it has the 8 3/4 with the 2 piece axles. According to a previous post, my chuck more than likely has a different spline count so i wont be able to swap axles with out buying a new diff for it. my license plate will probabaly read: MNY PIT (money pit)
Rick
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Re: Questions on 8 3/4 axle in 64 Polara
[Re: towguy76]
#889784
12/28/10 12:16 AM
12/28/10 12:16 AM
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Joined: May 2003
Posts: 15,487 Florida
scratchnfotraction
I Live Here
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I Live Here
Joined: May 2003
Posts: 15,487
Florida
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wait till you try to remove the hubs you can losen the nut and drive a few figure 8s and they will break loose some times most I have seen have to be smoke wrenched off you need to talk to DrDiff for sure there is a good write up on the history of the 8 3/4 and talks about the diff in axles and chunks on the 57 up early ones in the archives IIRC some thing about splines and the thrust block size or what not
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Re: Questions on 8 3/4 axle in 64 Polara
[Re: SportF]
#889787
12/28/10 01:48 PM
12/28/10 01:48 PM
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Joined: Jan 2003
Posts: 21,065 Niles , Ohio
therocks
oh wait.but hey.lets see.oh yeah.
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oh wait.but hey.lets see.oh yeah.
Joined: Jan 2003
Posts: 21,065
Niles , Ohio
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To get the drums off you need the proper puller.I have one that I bought for the 57 and 62.It attaches to the studs and tightens on the big stud that the nut is on.Then there is a handle that you smack with a good sized hammer and they pop off the key way.The 61 we had some moron pressed the drums off the stub.They were so bad that the pedal went up and down when you hit the brakes.Local yard had a set that I bought for it and fixed that problem.I bought my puller from Ebay.Cost me like 35 bucks and was an old I believe Mac.Ive done tons of the rears and never had one that wouldnt come off.My kids 62s were the worst.Took me about and hour to get them off.Rocky
Chrysler Firepower
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Re: Questions on 8 3/4 axle in 64 Polara
[Re: SportF]
#889792
12/28/10 04:05 PM
12/28/10 04:05 PM
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Joined: Jan 2003
Posts: 25,743 Rio Linda, CA
John_Kunkel
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 25,743
Rio Linda, CA
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Quote:
Well, that 64 sure grip will work, the splines are all the same, but the sure grip tapered axels are different length than standard axels, and that is a little known fact.
'64 is the first year that didn't used different length axles for SG and non-SG.
The '64 B body rear end dimensions are a holdover from the Forward Look days, wider than any other '62-'70 B body rear.
The INTERNET, the MISinformation superhighway
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Re: Questions on 8 3/4 axle in 64 Polara
[Re: therocks]
#889793
12/28/10 05:11 PM
12/28/10 05:11 PM
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Joined: Feb 2006
Posts: 76 Port St Lucie, Florida
towguy76
member
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member
Joined: Feb 2006
Posts: 76
Port St Lucie, Florida
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Here is my rear drum and 2 piece axle setup. So i gather that in order to inspect and repair the brakes i am going to have to pull the hub off the axleshaft. Since the studs need to be replaced anyway, can i cut out the old ones, remove the drum from the hub, install new modern studs and have the drum removable from the hub for ease of use? on another note, my front drums use bolts that thread into the hub like a Mercedes instead of studs. They are reverse threads on the driver's side like other pre 70s Mopars though.
Rick
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