Posted by TGP (IL) [68.165.186.248] on Thursday, December 17, 2015 at 17:05:22 :
In Reply to: Re: Swapping Transmissions? posted by CSCameron [71.223.218.178] on Thursday, December 17, 2015 at 07:45:46 :
Had the 2nd series Trans. which is a true
NP420 box.
As Tim said both are externally interchangeable with the bell housing.
The NP 420 had redesigned internals which corrected earlier problems.
I think the M37B1 started around 56 or 57?
Tom
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