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Old 06-20-2006, 01:16 AM
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What is the most narrow rear end

i have a 1970 Mgb gt and i am putting in a 2.8 v6 done up and a t5 5 speed from a v6 and i am having alot of trouble trying to figure out what i am goin to do with the rear. i dont think my stock rear is strong enough and i would really like to have posi. I just want to get some opinions i have also hear of many Mg guys just goin with a for 8 and having it shortened, i am just looking for a cost effective method

Thanks alot

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Old 06-20-2006, 01:34 AM
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Might try a Chevette rear-end. They should be about the right width, and not too hard to find. People convert these to 2.8/3.1's pretty often and leave the stock rear-end alone. Parts wouldn't be much of a problem either. The gear ratio ranges from 3.83 to 4.11 in these cars...

The only thing that bothers me is, Chevette rears have this funny extension that comes out of the differential, about 2-feet, that the drive-shaft bolts to. Its like an old-torque tube or something that connects to the drive-shaft. It would probably be alright on your MG, but you wouldn't have much of a driveshaft. And they use coil-spings...that might be a problem too.

Other than Chevettes, I'd say maybe a mini-truck rear or something, I don't have much else to say.

-GF
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Old 06-20-2006, 02:50 AM
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yea i think i might just get a shaft made to connect my t5 to my stock rearent and go til she blows. cross that brigde when i get to it i guess, who knows it could last
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Old 06-20-2006, 02:46 PM
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Many many moons ago me and my dad slapped a 351C in an MGA (MKIII no less ) we used the rearend out of a jeep (Dana 60) and didnt have to cut it, unfortunatly it was such a long time ago I dont remember the model or year of jeep.... just givin you another Idea possibly hit a 4X4 forum and ask around?
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Old 06-20-2006, 03:10 PM
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What width do u need? This link may help.



http://50chevy.freeservers.com/Suspe...tml#Suspension
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Old 06-21-2006, 06:54 AM
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I'm told that the rear end from a Jeep mail vehicle is the correct size. You could ask that question here:

http://www.mgbexperience.com/phorum/list.php?40

http://www2.mgcars.org.uk/cgi-bin/ge...ect=36&thread=

Greg
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Old 06-22-2006, 02:46 AM
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I know that the 8" ford used in Mavericks is Ford's narrowest. Not sure how it compares to others, but disc brakes are possible with it and its pretty narrow. Gear ratios are limited in selection, but you can swap out the center housing for a 9" housing making a poor-man's 9" for the Maverick. Then your gear ratios are infinite... however your center section becomes very heavy and way overkill for your application.

If you can find a suitable ratio in a Ford 8" from a Maverick/Comet, that is Ford's narrowest anyway.
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Old 06-22-2006, 08:38 AM
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A cryco A-body 8 3/4 diff is probally the norrowest stock diff you will find.
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Old 06-23-2006, 08:34 AM
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This might help. I build T Buckets and a lot of guys use the 8" Ford but they are hard to find. We are using the rears out of S10 trucks. They are 54" wide from were each wheel bolts on. Just about all are 3.73 and some 4.10 and if you look hard you can find a posi. The junk yard here gets $100 for one.
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