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MG MGB Technical - Interchangeable floor pans?

I have a 1964 MGB with very rusty floors. I need to replace the floor pans, plus much more. This question concerns floor pans. Those advertised for 1968-1980 MGBs are cheaper and more readily available that those for earlier MGBs. How different are the early and late floor pans? Can the late pans be cut down or otherwise altered to fit my 1964?
M.E. Whalen

M.E.

I think it is transmission tunnel which is narrower on earlier car as gearbox were similar to MGA. Which means later floorpan will need to add some sheet metal.

But I never compared both cars side by side.

Cheers,

Jean
Jean Guy Catford

You will need to use the earlier floor pans. On my '66 B-GT the later pan did not fit.
David Werblow

David:

How did the pan not fit? Too big, too small?
M.E. Whalen

Too small. The tooling was lost for the pre '68 cars, so new tooling was needed to supply the demand for for early car floor pans. The price of the new tooling is reflected in the difference of the cost of an early floor pan versus the cost of a late floor pan. RAY
rjm RAY

M.E
I have used the new ones manny times in 3 syncr. cars
just dont cut out the piece from the tunnel to the side member (HZA 590/1). and cut a piece of the new florpanel and weld it over the member

Harry
HL Lagoni

I fab my own pans.the mg is the easiest to do.cut blanks out of 18 gauge pickled and find someone with a bead roller to put the stiffeners in.also works out to half price.just my 2 cents.
z dezsenyi

Thanks to everyone for your helpful responses!! It sounds like the later floor pans can be made to fit the earlier car with a little cutting and welding.

Michael Whalen
M.E. Whalen

This thread was discussed between 08/03/2013 and 13/03/2013

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