23/12/2016
Since we are at the stage where the Volvo is reliable (damn it broke down yesterday with coil/condenser issues) and almost about to go to have the big rust cutting stage time to reveal it to the world.
Here is the history of this model vehicle. This truck is a ex-Malaysian Police FRU (Riot squad truck) Volvo C304
I've been doing some more research.
I found the English Manuals
http://www.petrisimolin.com/ThePalsta/topic.asp?whichpage=6&ARCHIVEVIEW=&TOPIC_ID=21108
http://www.offroadtarvike.fi/taustatieto.html
http://pirate4x4.com/forum/showthread.php?t=539666
http://pirate4x4.com/forum/showthread.php?t=398873
Here's some specs from the Volvo 303 group.
C303/TGB11 = 2 axle, axle ratio 5.99:1 (11 tooth pinion x 32 tooth ring gear = 2.90909 (x 2.06 reduction = 5.992727)
C304/TGB13 = 3 axle, axle ratio 7.10:1 (9 tooth pinion x 31 tooth ring gear = 3.444444 (x 2.06 reduction = 7.095555)
Ours is the rare 4 AXLE C304 only in Malaysia
C306/TGB20 = 3 axle troop carrier, axle ratio 7.55:1 (9 tooth pinion x 33 tooth ring gear = 3.666666 (x 2.06 reduction = 7.553333)
Volvo portal axles:
Trackwidth = 60.6"
330 lbs for a front axle
286 lbs for a rear axle
8 on 8.75" lug pattern
standard 4 bolt driveshaft fl**ge (Rover size)
Birfield front axle joint (Rover size)
Portal box reduction = 2.06:1
Portal box gears are straight cut
Vertical distance from axle midline to hub midline = 5"
Vaccuum operated locker front/rear, easily converted to cable.
3" square tube stamped steel housing with removable 3rd member
Fronts are pass. drop, can be flipped to make d-side with few mods.
Rear 306 axle is centered, 303 axle is offset 2".
Ground clearance with standard tires(36")/rims(16") = Volvo C-series, 15.5"
factory ratios:
9x33 = 3.666666 (x 2.06 = 7.553333:1)
9x31 = 3.444444 (x 2.06 = 7.095555:1)
11x32 = 2.90909 (x 2.06 = 5.992727:1)
axle specs:
Pinion gear 11 teeth, ring gear 32 teeth.
Portal drive gear 16 teeth, driven gear 33 teeth.
Drive gear 1.5 wide, driven gear 1.4 wide.
Drive axle major diameter 1.16 miner 1.06
Driven axle major diameter 1.745 minor 1.555
27 spline inner axle shafts
26 degree turning angle
Brakes:
The model range is officially called the C - series and comes in a large number of military and commercial formats. All the military models are prefixed by TGB although the body ID plates still carry the C series coding.
The military models available are as follows
TGB 11 - Command Cab 4x4
TGB1111- Anti-Tank canvas top 4x4
TGB 13 - Command Cab 6x6
TGB1312 - radio box 6x6
TGB1314 - Ambulance body 6x6
TGB 20 - Troop Transport 6x6 (canvas top, cab and box)
Also available in 6x6
ambulance body (cab and box)
Fitted For Radio (cab and box)
Commercial (12V) Fire trucks in 4x4, 6x6 and LWB 6x6 (proverbial hen's teeth)
The Volvo C303 was built between 1974 - 1982.
It came in different forms including a soft top and hard top 4x4, a 6x6 in various forms in military and civilian 4x4 version. The C303 has leaf springs with straight, portal axles, approx. 380mm of clearance at the lowest point. High and low range transfer case, a 6 cylinder Volvo B-30 engine and a 4 speed transmission (5 speed available in some later models).
They come with fully selectable vacuum operated diff. lockers on the front and rear.
Top speed: 70mph (4x4) 60mph (6x6) 50mph (troop carrier 6x6)
Power: 125hp at 4200 RPM - Civilian model only, military power unknown but thought to be ~110bhp
Torque: 165 Ft.lbs. at 2500 RPM
Dimensions: 4240mm, width: 1930mm, height: 2130mm
Turning radius: 5m
Weight: 2400kg (unladen); GVM 3450kg (4x4) 2800kg (6x6)
Engine: Volvo B30A, 2982cc, petrol, 6-cyls, Twin Stromberg carb fed, 2-valves/cyl, ohv. Bore: 88.9mm, stroke: 80mm, CR: 9.3:1 (civ)
Transmission: 4sp, part-time 4WD (6WD), 2-speed transfer case, portal axles with 2:1 hub reduction gears, front and rear diff locks
Suspension: Live-leaf/live-leaf
Brakes: Drum/drum (as from a Landrover 109 V8)
Tyres: 9x16"
Fuel tank: 85L
