The chassis frame is constructed mainly of large box
sections, with body support brackets and other attachment points welded or
bolted to the internal and external faces of the chassis side and cross
With the exception of one or two points where heavier
reinforcement sections are used, the chassis frame is fabricated with
The two main longitudinal side members are 5 inches
deep and 21 inches wide between the front and rear upswept sections. The
side members are of seam welded construction. To ensure complete rigidity
and strength the frame incorporates eight cross members. The four front
members are welded to the front upsweep and are tubular in section.
Mounted high, the front cross-members encompass the
radiator and fan assemblies. (See illustration). A wide and
very deep box-section cross-member is situated in the
centre of the frame and passes beneath the end of the gearbox.
A second cross-member of similar construction passes
beneath the rear axle/propeller shaft connection and is dished to
allow propeller shaft clearance. The
remaining three cross-members support the upswept
tail, forming a bridge over the rear axle assembly. The
cross-member immediately behind the rear axle is constructed with a
spot-welded top plate, and is welded to the underside of the upswept side
The entire chassis is assembled in master jigs to
ensure perfect flatness, and is finisbed with aluminium priming
BRACKETS AND FIXING POINTS
The rear jacking 'tunnels' are provided on the upswept
tail centre cross member. Their downward protrusion gives jack access
beneath each rear wing. The front jacking channels are welded on the top
of the suspension arms, which are supported by brickets especially fitted
that the pilot pins are in horizontal alignment to the
chassis side members.
A box bracket welded to the front tubular cross members houses the
electrically driven fan. The chassis side member carries the
rack-and-pinion steering mechanism
with a protruding tube welded to the
member protecting the rack. Three
brackets welded to the chassis, support the engine and gearbox. The engine
side mounting brackets are at right angles to the front suspension pivot
pin brackets, the third bracket is located on the large centre cross
member beneath the gearbox.
The exhaust pipe and silencer are secured to the
chassis by three clamp
brackets, two of which protrude from the left hand side member and the
third is positioned behind the rear left hand jacking point.
The two rear axle check straps are secured to brackets
which are welded on the rear upswept side members. Fixing brackets for
retaining the splayed arms which locate
the non-independent rear axle are provided on the side members.
The top bracket is welded to the centre rear upswept cross member,
whilst the bottom bracket is welded to the outside face of the large lower
side member, approximately central to the propeller shaft and just above
the exhaust pipe.
The two handbrake mounting brackets are welded to the
internal face of the side member and are positioned almost opposite to the
gearbox/prop shaft universal point. The
handbrake and rear wheel brake cables are secured to a 'L'- shaped
bracket which is welded to the inside of the
side member directly behind the handbrake mounting
Two understrips are fitted between the rear end member
and main rear cross member
and retain the underslung petrol tank fitted across the extreme rear of
the upswept chassis.
Fuel and hydraulic lines and wiring run along the
internal faces of the chassis side and cross members retained in
Safety belt fixing holes are drilled as a standard
feature on both lower rear cross member and on the main raised
rear cross member.