The ratios are :3.090 1.670 1.000 0.730

That first gear is a stump puller. You're going to surprise a BUNCH
of
people at a few stop light grand prix because you'd have to have a
4.98 rear
end with the stock transmission to get the same effective ratio,
assuming
the Muncie has the 2.20 first gear. It will make 180 hp perform like
you
have never seen. The step from 1st to 2nd is SO wide you probably
won't be
happy with performance after you shift though, because it is going to
take
the engine out of the optimum torque band. The Muncie ratios are
closer and
keep the engine in a narrower torque/rpm band with shifts. You may
want to
look at an alternative - swap out the rear end. It may not give you
the
engine speed reduction you're looking for (e.g. - if you have a 5.55
rear
end now, you need to drop to a 2.59 and I'm not sure there ever was
one that
low - maybe someone else can say for sure).

The transmission swap will work. At the most you're going to have to
adapt
the mounting bolts for the tranny to the support (I think the
bellhousing is
the same pattern), tinker with the shifter and linkage, and maybe buy
a new
custom drive shaft which is no big woof.

Please post your results here if you move forward with the tranny
swap. It
would be interesting.

Charlie

"Elwood" <[email protected]> wrote in message
m...
> Hi, am wondering about the feasibility of swapping the Muncie out
for one
> of
> the side loaders from an early eighties Chevy truck. I think GM
calls it
> the
> NP260 (MY6) which I guess is like the old New Process A833, which is
> really
> a 3 speed with Overdrive. The ratios are :3.090 1.670 1.000 0.730
It's
> basically a stock engine, so with 180 HP am not too concerned about
> tearing
> it up. The looks and runs great, but the truth be told, my wife and
> daughter
> are the only ones that drive it. If it got better mileage and it
was an
> easy swap, I might go visit the wrecker. So if you can clue me in on
> splines, yolks, tail shafts and shifter placement,ect, I'd be much
> obliged,
> thx
>
>