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8-3/4 Housings #854529 11/15/10 11:55 AM 11/15/10 11:55 AM
Joined: Mar 2008 Posts: 270 SE Kansas I indytex96 OP enthusiast
indytex96 OP enthusiast I Joined: Mar 2008 Posts: 270 SE Kansas	Are 71-74 B body and 70-74 E body housings the same? Need one for a 72 Rrunner and was wanting to know what all fits. Thanks for any responses!

Re: 8-3/4 Housings [Re: indytex96] #854530 11/15/10 12:39 PM 11/15/10 12:39 PM
Joined: Jun 2003 Posts: 21,504 It's a dry heat gtx6970 Too Many Posts
gtx6970 Too Many Posts Joined: Jun 2003 Posts: 21,504 It's a dry heat	Quote: Are 71-74 B body and 70-74 E body housings the same? No, and I think they are 71-72 B-body only. Although,,,,,I am not sure if the 73 up B-body rear is the same or not

Re: 8-3/4 Housings [Re: indytex96] #854531 11/15/10 12:56 PM 11/15/10 12:56 PM
Joined: Apr 2010 Posts: 1,216 Under My Car Mopar_Country pro stock
Mopar_Country pro stock Joined: Apr 2010 Posts: 1,216 Under My Car	Here is some info from the tech archives, this might help. http://www.moparts.org/Tech/Archive/axle/17.html

Re: 8-3/4 Housings [Re: indytex96] #854532 11/15/10 01:43 PM 11/15/10 01:43 PM
Joined: Jan 2008 Posts: 553 DE Ply72rr mopar
Ply72rr mopar Joined: Jan 2008 Posts: 553 DE	1971 or 1972 B body rear will bolt right in. 1973 and 1974 B body rear will work but they have a larger hole where the locating bolt fits and will need a bushing fabricated.

Re: 8-3/4 Housings [Re: Ply72rr] #854533 11/15/10 02:36 PM 11/15/10 02:36 PM
Joined: Mar 2008 Posts: 270 SE Kansas I indytex96 OP enthusiast
indytex96 OP enthusiast I Joined: Mar 2008 Posts: 270 SE Kansas	Thanks! I always assumed E and B body were the same, good thing I checked here first.

Re: 8-3/4 Housings [Re: Ply72rr] #854534 11/15/10 06:11 PM 11/15/10 06:11 PM
Joined: Apr 2010 Posts: 1,216 Under My Car Mopar_Country pro stock
Mopar_Country pro stock Joined: Apr 2010 Posts: 1,216 Under My Car	Quote: 1971 or 1972 B body rear will bolt right in. 1973 and 1974 B body rear will work but they have a larger hole where the locating bolt fits and will need a bushing fabricated. I must have missed something somewhere. I always thought the spring perches were wider from B to E, as well as overall length. 1.3" I thought.

Re: 8-3/4 Housings [Re: indytex96] #854535 11/15/10 06:18 PM 11/15/10 06:18 PM
Joined: Jan 2003 Posts: 3,011 Covington Georgia RV2 master
RV2 master Joined: Jan 2003 Posts: 3,011 Covington Georgia	The 71 up housing are wider than the e bodies, got any c bodies around? check those as some 70 up C housings are the same as 71 -72 B body.

Re: 8-3/4 Housings [Re: RV2] #854536 11/15/10 06:38 PM 11/15/10 06:38 PM
Joined: May 2003 Posts: 15,487 Florida S scratchnfotraction I Live Here
scratchnfotraction I Live Here S Joined: May 2003 Posts: 15,487 Florida	one of the charts in the archives are wrong and has cost a few members $ by going by the wrong one I would think the mods would have deleted it by now...NOT! I forget which one is wrong..but look at both and compair the #s and you can see they are differnt I have a housing that had a 67 chunk and was told it was a 67 polara which is a B-body with 46" spring perches the flange to flange is 55" i was told it was also same as a e-body housing the axle is 30" long i am still holding it to see what it is exactly before I have it cut down confused 6303192-stepsiderearaxle#2.jpg (34 downloads) Last edited by scratchnfotraction; 11/15/10 07:28 PM.

Re: 8-3/4 Housings [Re: scratchnfotraction] #854537 11/15/10 06:45 PM 11/15/10 06:45 PM
Joined: Jun 2005 Posts: 4,041 michigan woods imfixinmopars426 master
imfixinmopars426 master Joined: Jun 2005 Posts: 4,041 michigan woods	just went through this with the charger,71 up is wider than e-body..period. i was going to inboard the springs and use the e-hsg,but i was too lazy.

Re: 8-3/4 Housings [Re: imfixinmopars426] #854538 11/15/10 08:30 PM 11/15/10 08:30 PM
Joined: Apr 2010 Posts: 1,216 Under My Car Mopar_Country pro stock
Mopar_Country pro stock Joined: Apr 2010 Posts: 1,216 Under My Car	Quote: one of the charts in the archives are wrong I'm not sure that's 100% true, I could be wrong though. When I was researching measurements for my ride I saw 2 charts that differed. After being puzzled for a while I got to thinking about flange to flange measurements and I came to the conclusion that they don't say what flange. I checked the chart that was said to incorrect and the measurement for the B body rear was Axle flange to Axle flange. I assumed they meant the flange on the housing itself.

Re: 8-3/4 Housings [Re: Mopar_Country] #854539 11/15/10 08:54 PM 11/15/10 08:54 PM
Joined: Apr 2005 Posts: 12,271 Overpriced Housing Central RobX4406 I Live Here
RobX4406 I Live Here Joined: Apr 2005 Posts: 12,271 Overpriced Housing Central	Quote: Quote: one of the charts in the archives are wrong I'm not sure that's 100% true, I could be wrong though. When I was researching measurements for my ride I saw 2 charts that differed. After being puzzled for a while I got to thinking about flange to flange measurements and I came to the conclusion that they don't say what flange. I checked the chart that was said to incorrect and the measurement for the B body rear was Axle flange to Axle flange. I assumed they meant the flange on the housing itself. The chart at the bottom of the link is WRONG for some rears! 62-70 B bodies are not the same length. A body 8.75 ARE NOT 51.40" really 52 5/8" This link has correct info http://www.moparts.org/Tech/Archive/axle/16.html

Re: 8-3/4 Housings [Re: scratchnfotraction] #854540 11/15/10 10:29 PM 11/15/10 10:29 PM
Joined: Apr 2007 Posts: 905 SD Z zrxkawboy super stock
zrxkawboy super stock Z Joined: Apr 2007 Posts: 905 SD	Quote: 67 polara which is a B-body 67 Polara is not a B-body. It's Swifty! Swifty, you toad sucker!

Re: 8-3/4 Housings [Re: zrxkawboy] #854541 11/15/10 10:31 PM 11/15/10 10:31 PM
Joined: Jun 2003 Posts: 4,872 connecticut pnypwr master
pnypwr master Joined: Jun 2003 Posts: 4,872 connecticut	i got one from a 71 runner if you need it...pm me "Are you gonna bark all day lil doggy? Or are you gonna bite?" 05 ram 2500 ctd 74 gremlin x 360 65 mustang 347 70 coronet R/T 440 03 Mach 1

Re: 8-3/4 Housings [Re: zrxkawboy] #854542 11/16/10 12:28 AM 11/16/10 12:28 AM
Joined: Mar 2008 Posts: 293 salem, oregon. usa E elmor enthusiast
elmor enthusiast E Joined: Mar 2008 Posts: 293 salem, oregon. usa	Exactly! It's a C-body.

Re: 8-3/4 Housings [Re: elmor] #854543 11/16/10 10:14 AM 11/16/10 10:14 AM
Joined: May 2003 Posts: 15,487 Florida S scratchnfotraction I Live Here
scratchnfotraction I Live Here S Joined: May 2003 Posts: 15,487 Florida	my bad when i got it i was told it was a 67 B-body i measured it agian last night and got 56 1/2 flange to flange with the 46" perch centers,30" axles that sound right for a 67 c-body?

Re: 8-3/4 Housings [Re: scratchnfotraction] #854544 11/16/10 11:43 AM 11/16/10 11:43 AM
Joined: Mar 2008 Posts: 270 SE Kansas I indytex96 OP enthusiast
indytex96 OP enthusiast I Joined: Mar 2008 Posts: 270 SE Kansas	Will the backing plates and brakes all swap over from a 8 1/4 to the 8 3/4?

Re: 8-3/4 Housings [Re: indytex96] #854545 11/16/10 12:26 PM 11/16/10 12:26 PM
Joined: May 2003 Posts: 15,487 Florida S scratchnfotraction I Live Here
scratchnfotraction I Live Here S Joined: May 2003 Posts: 15,487 Florida	yes the only one that does not take the bigger brakes is the stock A-body 8 3/4 axle with 1 3/4" brakes/drums I have 11x2.5 on my A-body with moser axles,used them from a truck 9 1/4

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