Revision as of 01:54, 2 November 2012

Datsun 1200 used the tried and true leaf spring rear suspension, which was common among most cars - including american cars - in the early 1970s.

1 Overview
- 1.1 Specifications
2 Leaf Spring Mounting
3 Bumpers
4 Part Numbers
- 4.1 Bushings
  - 4.1.1 Make your own
  - 4.1.2 Aftermarket

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
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-

Specifications

All 1200 springs are:

length: 1110 mm
width: 50mm

Sedan, Coupe
* 3 leaf: 1 x 6mm thick, 2 x 7mm thick

Van standard
* 4 leaf: 3 x 6mm thick, 1 x 13mm thick
Van heavy duty
* 4 leaf: 2 x 6mm thick, 1 x 17mm thick, 1 x 11mm thick

Truck standard
* 4 leaf: 2 x 6mm thick, 1 x 7mm thick, 1 x 13mm thick
Truck optional
* 5 leaf: 2 x 6mm thick, 1 x 7mm thick, 2 x 10mm thick

Truck Free Camber: 
* 118.5 mm 
Truck Laden Camber:
* Standard: 18.5 mm/kg
* Optional: 15.1 mm/kg

Leaf Spring Mounting

Rear axle mounting and Shocks

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)

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

Bumpers

Coupe & Van rear suspension bumper (above the Leaf Spring)
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

Part Numbers

Bushings

5 55044-H1001 front upper Sedan, Coupe
6 55045-H1000 front lower Sedan, Coupe [leaf eye]
17 55046-H1000 rear upper
18 55047-H1000 rear lower [leaf eye]

Wagon & Ute

V 55045-H1400 front Van, Truck

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

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Leaf Springs