A trick that I learned a long time ago is this:
Using electrical tape, wrap the front U joint and spline with enough tape
that it stops flopping around and insert from the rear. After a few miles
the tape comes off and flys out the rear of the tunnel. Works like a charm.
From: Chuck Ciaffone <firstname.lastname@example.org>
To: spridgets@Autox.Team.Net <spridgets@Autox.Team.Net>
Date: 10 December, 1997 2:22 PM
Subject: Installing the Engine and Tranny
>I'm darn close to putting the engine and Datsun tranny
>back in the '72, and I'm a little concerned about
>how to handle the drive shaft. I'm pretty sure that I
>can't fit it to the tranny after the engine and tranny
>are in place 'cause the tunnel is so small. So my choices
>seem to be:
>1. Fit the splines to the tranny BEFORE installing the whole
> shebang and then very CAREFULLY guide the shaft into the
> tunnel while lowering the engine into the bay.
>B. Slide the drive shaft into the tunnel, lower the engine and
> tranny, and kinda slide the splines into the tranny from behind
> as I lower the engine.
>Maybe there isn't such a big difference between 1 and B, but
>(seems to me) there's a lot less chance for disaster using B
>because the drive shaft is already as down as it's gonna get,
>where with 1 the shaft might slip out and hit the floor or the
>MG as I lower the engine.
>Your thoughts on the matter, please?
>Thanks, as always,
>chuck ciaffone email@example.com