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Re: rear end question

To: "Bob Shaw" <shaws@mlcltd.com>
Subject: Re: rear end question
From: "Truls Sundt" <sundt@online.no>
Date: Thu, 2 Nov 2000 13:37:08 +0100
This advice is dangerous!!!
If the A got drum brakes in front there will be almost no brake when reversing!!

Best regards

Truls
----- Original Message ----- 
From: "Bob Shaw" <shaws@mlcltd.com>
To: "Bill King" <kingwj@del.net>; <mgs@autox.team.net>
Sent: 2. november 2000 13:26
Subject: Re: rear end question


> At 4:23 PM -0500 11/1/00, Bill King wrote:
> >Is it possible and practical to put the 3.909:1 MGB rear axle into a MGA?
> >The only 'official' ratios listed for the A are the standard 4.30:1 and an
> >optional 4.555. It's my theory that a motor will rev a certain
> >predetermined number of times as determined by an unknown force and
> >therefore it is to my benefit to get the greatest number of miles out of
> >those revs. My car already has a B motor so the power is there for the
> >longer gear. The manuals list the rear tracks as:
> >A- 48 3/4" (disk wheel)
> >B- 49 1/4" (any wheel)
> >My question is are the brake drums .25" wider on the B so that mounting my
> >original brakes will bring the track back to correct. Also drive shaft
> >lengths are different, which is not unexpected. Is this a project worth
> >taking on or should I just forget about it?
> >Comments please
> >Regards,
> >Bill King
> >59 A
> 
> A B rear axle is a bolt in, and I recommend it if you are running a B 
> engine. With reference to brakes, I recommend a tube type rear axle 
> with BGT brakes. You get larger pistons, 2 pistons as apposed to the 
> single piston in the A which results in brakes that are much more 
> effective and easier to modulate. Your original drive shaft will 
> work. The variance is track is not significant.
> -- 
> Bob Shaw
> Check out Shaw's Garage at http://www.mlcltd.com/shawsgarage/
> My British Car is NOT leaky - it's merely marking its territory.
> 
> 


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