Message text written by "Randall Young"
> Irv, Not much that you missed, there are other subtle differences in the
> interior such as headlight switch placement, OD switch placement,
> the center
> plinth dash switch arrangements, seats, cushion pad on door tops,
> Temperature gauge. Gee when you start to list the differences the
> cars while
> looking almost identical were really quite different.
> ----- Original Message -----
> From: "Irv Korey" <email@example.com>
> > The 4A uses a different frame from the TR4, and in the US could be
> > with IRS or solid rear axle
> > The grill is different
> > The radiator is different
> > The steering rack mounts are different
> > The handbrake location is different
> > The dash went from white metal on earlier TR4's to the wood dash at
> > point, but I think all 4A's had the wood dash
> > 4A's have chrome strips and lights on the front fenders
> > Folding top vs the removable top and folding bows (this could also have
> > taken place on later TR4's, I don't know)
> > Front suspension changes, including vertical links, trunnions, and
> > a-arms, which made front camber adjustment MUCH easier
> > 4A's came with Strombergs or SU HS6's, depending on when they were
> > 4's used Strombergs or SU H6's.
> > The cylinder heads and intake manifolds were different between
> the 2 cars,
> > although once again, these changes could have been made to later 4's.
Didn't the switch to the dual outlet exhaust manifold also happen at the
4/4A changeover ? ISTR the routing changed with the 4A frame, so the
exhaust system was different.
Well, don't forget the change over from the draft tube to the PCV crankase
vent system. Not that the racers cared any.
Didn't the grill change or did it stay the same until the TR5/250?