What a demanding person : )
The 4.55 ring and pinion will fit in an MGB banjo style rear end.
The only thing to watch out for are the side gears in the pumpkin
assembly. These are fine tooth for MGB. Coarse tooth for MGA 1500 and
Magnette. The MGA 1600 with the 4.10 ratio also has fine teeth, but I was
warned at some time that although the tooth count is the same as B the angle
of cut may be different. I have not checked the part numbers of the side
gears to confirm this tho'.
To use an earlier pumpkin just pop the MGB side gears into it.
Another alternative is to purchase a new ring and pinion, and build
them into MGB case. There is a supply of new 4.55 ring and pinions now on
the market. One problem with these is that they were sourced to regear T
series cars and have a coarse spline pinion that does require the T series
input flange. Luckily these too are available new.
You did miss one banjo rear end ratio. The early (-ZA18100) MG
Magnette ZA according to the manual had a 4.875:1 (8/39) ratio.
Kelvin.
> -----Original Message-----
> From: Larry Hoy [mailto:larryhoy@prodigy.net]
> Sent: Monday, July 24, 2000 4:22 PM
> To: MG list
> Subject: Axle ratios revisited
>
>
> A couple of weeks ago we hashed out the different rear end
> ratios that were
> available for MGs. Below I have included the synopsis of
> those discussions.
>
> Can anyone confirm the 4.55 MG Magnette gears fit the MGB
> banjo style rear end?
> And,
>
> if you happen to have this differential ratio available, and
> are willing to sell
> it, please contact me.
>
> Larry Hoy
> **************************************************************
>
> Banjo Axles
>
> 3.909 MGB standard ratios 11 / 43
>
> 4.10 MGA 1600 MkII
>
> 4.30 MGA standard ratios
>
> 4.55 MG Magnette
>
> 4.875 MG TF
>
> 5.13 MG TD
>
> Tube Axles
>
> 3.07 MGC 4 speed early cars
>
> 3.307 MGC automatic and some OD cars
>
> 3.7 MGC OD late cars
>
> 3.909 MGB standard ratios 11 / 43
>
> 4.22 MGB Special tuning 10 / 37
>
> 4.55 MGB Special tuning 9 / 41
>
|