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Datsun 1200 used the tried and true leaf spring (blade) rear suspension, which was common among most cars - including american cars - in the early 1970s.
Contents |
Overview
Sedan and Coupe use the same leaf-pack.
VB110 Wagon came with heavy-duty spring pack.
The B120 1200 Truck came with standard or optional (heavy-duty) rear leaf springs. Standard was a 4-leaf pack, while optional was a 5-leaf pack with a stiffer spring rate.
55020-H1000 Sedan, Coupe $159 USD 55020-H1400 Van (heavy duty) 55020-G1000 Truck 4-leaf early 55020-G1001 Truck 4-leaf 7510- 55020-G1002 Truck 4-leaf 8504- 55020-G1060 Truck 5-leaf 7804-8503 55020-G1061 Truck 5-leaf 7804-8503 8504-
Ute 4-leaf pack Type 1
Ute 4-leaf pack Type 2 (2nd leaf overlaps 1st leaf)
Rear Shackle is same for all 1200s
3-point Mount Plate (Sedan, Coupe)
Details (truck, Pin front mount)
Spring Specifications
All 1200 springs are: 1110 mm long, 50mm wide
Spring Eye Diameter * Coupe, Sedan, Van: 35mm front, 23mm rear
Sedan, Coupe * 3 leaf: 1 x 6mm thick, 2 x 7mm thick Van * 4 leaf std: 3 x 6mm thick, 1 x 13mm thick * 4 leaf H-D: 2 x 6mm thick, 1 x 7mm thick, 1 x 11mm thick
Truck * 4 leaf: 2 x 6mm thick, 1 x 7mm thick, 1 x 13mm thick * 5 leaf: 2 x 6mm thick, 1 x 7mm thick, 2 x 10mm thick
Free Camber * Sedan, Coupe: 109mm +-3 * Van : 131mm +-5 * Truck : 118.5 mm Laden Camber * Sedan, Coupe: 11mm @ 192kg * Van: 11mm @ 295kg * Truck std 4-leaf: 18.5 mm/kg (589 in/pound) * Truck HD 5-leaf: 15.1 mm/kg (829 in/pound)
Leaf Mounting
B110 mounts leaf directly to metal (unlike B10 and B210 which use rubber-based isoclamp).
Rear axle mounting
Spring Seat
Spring Seat Assembly
Sedan: 55262-H1001
Truck: 55262-G1000 (RH) 12mm shock Nut wide u-bolt
Van: 55262-H1401 (RH) 12mm shock Nut narrow u-bolt
55262-H1402 (RH) (from '73-6)
Coupe: 55262-H1801 (RH) 8mm shock Nut
55262-H1802 (RH) (from '73-5)
Also see Shock aborbers
B120 Truck
Coupe
B210 Coupe
Sedan and Coupe parts
U-bolts
U-bolts 55247-H1002 CLIP-rear spring Sedan, Coupe.USA 55240-H1800 Coupe.JPM.early 55247-H1401 CLIP-rear spring Van, Coupe.JDM.late 55247-G1000 CLIP-REAR SPRING Truck 4-leaf 55247-G1060 CLIP-REAR SPRING Truck 5-leaf 7804-
Fasteners for U-bolts (Sedan,Coupe,Van,Truck) 08911-64010 NUT-HEX M10 x 1.25 8 08915-14010 WASHER-spring lock 8
Sedan
Ute U-bolts (same diameter but larger width)
B210 Sedan U-bolts (plate has wider spacing than B110)
Bound Bumpers
Coupe & Van rear suspension bumper (above the axle housing) 55240-H1400 ASSY-BUMPER REAR AXLE 08911-64010 NUT-HEX M10X1.25 08915-14010 WASHER-SPRING LOCK
Sedan rear suspension bumper (on the Shocks) 55240-H1001 BOUND BUMPER A 56124-H1001 BOUND-BUMPER B
Torque Arrester
The Torque Arrester (pinion snubber) is a rubber bumper that prevents the leafs from rotating too much under torque input.
See Rear Axle
Bushings
5 55044-H1001 front upper Sedan, Coupe * superseded by 55044-H5001 $4.90 USD6 55045-H1000 front lower Sedan, Coupe [leaf eye, course] $3.63 USD
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17 55046-H1000 rear upper $2.27 USD
18 55047-H1000 rear lower [leaf eye, plain] $1.22 USD
NOTE: B210 USA uses the same bushes as 1200 Coupe/Sedan.
Wagon & Ute
V 55045-H1400 front Van, Truck [leaf eye, fine] $4.25 USD
55044-H5001Ute/Van complete set
Make your own
Or, make your own performance bushings per Nissan Competition book:
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- I went to a local platics place and bought a piece of
Aftermarket
Or, get stiff aftermarket bushings:
I got in touch with MADDAT.COM and they knew exactly what I was looking for. They had it in stock from Super Pro (yes they're polyurethane), sent them right out, and I received them 8 days later here in Arizona, USA. Tamra from the sales department was easy to work with and very helpful. I would recommend these guys to anyone who needs parts for their 1200. Front spring eye bushing on rear leaf spring
Polyurethane bushings out of Mexico: Parbo
Maddat Leafs
LS1200 Lowered Rear Springs, Heavy duty leaf springs, king spring, reverse-eye lowered.
They are a combination lowering spring and traction spring:
- Flipped half-leaf to control torque windup
- Reversed eyes for lowering
- Reset leafs for lowering
- Compound reset for anti-tramp qualities
120Y Springs
120Y has same length spring, but locates the differential in a different spot. Not Interchangeable.
Alternative Leaf Springs
Carbon Leafs
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