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By
DAVID PIKE
In July 1970 Holden released the model HG, a slightly restyled version
of the HT. The HG range comprised 13 models including sedans, wagons,
panel vans and utilities. It was the first Holden model launch to
include the commercial vehicle range and showed that GMH, having
previously concentrated on increasing production output, had now
expanded their design and development group to the point where they
could cope with a much increased workload. With previous model releases
it was several months later that the new commercial range saw the light
of day.
Admittedly modifications were kept
to a minimum but this was planned as the HG was introduced to
freshen up the Holden range while design work was completed on the
next model HQ, a very important model for Holden. Premier and
Brougham models continued with essentially the same body as the
HK/HT models but with a new ABS plastic grille. Other models
featured an egg-crate mesh design grille with a central vertical
bar carrying a Holden badge. Redesigned tail-lights on the HG
retained the shape of the HT lights, but were in one piece. Other
appearance changes were minimal with modified mouldings and
relocated identification badges.
The most significant change was the
introduction of a new Australian built three-speed automatic
transmission called the Tri-Matic which replaced the two-speed
Powerglide. The Tri-Matic was available with a floor or column
shift and was a standard fitting on the Brougham but an option on
all other models, except for the top-range Monaro, the GTS350,
which could be had with the regular two-speed Powerglide automatic
or a four-speed manual gearbox.
A worthwhile safety addition was
the standard fitting of disc brakes on all models. On V8-equipped
models, thicker material was used in the discs for better heat
dissipation. To liven up the interior redesigned trim patterns
were introduced and Premier seats were tailored in vinyl or
Castillon cloth set off with plastic woodgrain patterned panelling.
Externally new paint colours were offered with metallic paints as
an option.
With the model HG, Holden buyers
were spoilt for choices. In the engine department there were five
sizes available from sixes to V8s including two new all-Australian
models. The 253 V8 at 4.146 litres developed 138kW and the 308 V8
at 5.044-litres developed 179kW. There were also three
transmissions available if performance was your need. For country
work buyers had the choice of optional heavy-duty springs,
limited-slip differential, wide tyres and a heavy-duty radiator.
Sporty types could go for a floor change, bucket seats as well as
the rally pack instrumentation package. Deep pile carpets and a
prestige vinyl roof were options for those wanting a touch of
luxury.
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