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Datsun 1200 used the tried and true leaf spring rear suspension, which was common among most cars - including american cars - in the early 1970s. Also known as blade springs or cart springs.
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
Front 3-point Mount Plate (Sedan, Coupe)
Sedan rear shackle pin bracket
Details (truck, Pin front mount)
Truck rear shackle pin bracket
Truck front leaf pin
Custom adjustable shackles
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: 18.5mm @ 267kg * Truck HD 5-leaf: 15.1mm @ 376kg
Spring Rate Sedan,Coupe: 109 lb/in Van: 137 lb/in (on overrider) Truck 4-leaf: 149 lb/in (on overrider) Truck 5-leaf: 203 lb/in (on overrider)
Leaf Mounting
Also see: Shocks#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 absorbers
H10 Sedan (plain seat without shock stud)
G10 B120 Truck large stud for shock + large U-joints
H18 Coupe small stud for shock
post
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 M10 diameter but wider spacing for larger axle tube)
Ute U-bolts fit over 62 mm axle housings (62 mm inside diameter)
Bound Bumpers
Coupe, Truck & Van rear suspension bumper (above the axle housing) 55240-G1900 ASSY-BUMPER REAR AXLE > 55240-H1800 > 55240-H1400 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
Truck Bound Bumper
post
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:
-
- 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
Lowering Springs
See main article: Lowering Springs
Also See: Lowering
120Y Springs
120Y B210 leaf spring is 1165mm. It is 55mm longer than 1200 B110 (1110mm) and is not interchangeable.
B210 use an Isoclamp system which means the bolts are farther apart, even though the leaves are the same 50 mm width as 1200 leaf springs.
B210 Coupe
B210 Sedan U-bolts (plate has wider spacing than B110)
album
Bolt holes 3 inches
full
Alternative Leaf Springs
Composite Leafs - see 2013 group buy
See Suspension_upgrades#Smooth_ride
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