[Tigers] posi

[William Lau]

I have a 2.88 posi in my MKII so it should fit.  If your engine has a
radical cam large valves and ports in the heads, go with the 3.07 but if it
is close to stock or you expect it to be a bit "torquey", go with the 2.88.
Remember that the tires are a lot smaller in diameter on Tigers than on
others.  If you compare a 25 inch tire at 2.88 to a 27 on a different car
your gear ratio will have to be a 3.10 to have the same RPM at the same
speed.  However I think that stock MKII's have a 2.95 first if I remember
correctly and it wouldn't hurt to be a little lower so I would be inclined
to go with the 3.07   A 2.88 with .8 overdrive is a final drive of 2.30 and
3.07 is 2.45.  Those are both pretty high if your engine needs higher RPM to
run right.-- Bill --

Hey,
     I am going to put a posi in my currently stock rear end.  I'll have a
T-5 with 2.95 1st and .8 overdrive.  I have a 3.07 sitting on the shelf
besides the 2.88 that's in the car.  I'm inclined to use the 2.88, but
vaguely remember a problem mentioned here and elsewhere about the mounting
bolts not working with the posi.  I searched TU site and couldn't find the
reference.  Could someone refresh my memory.  What do I need to do to make
this work.
     Seems like I remember the 3.07 not having this problem.  Anyone in
favor of the final ratios I'd end up with using that?  Thanks!!
                                                      Chris Hill