Leaf Springs

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Printable version | Disclaimers | Privacy policy | Current revision
Category: Rear Axle And Rear Suspension

---

Revision as of 23:56, 1 November 2012 ddgonzal (Talk | contribs) (->Leaf Spring Mounting) <- Previous diff		Current revision ddgonzal (Talk | contribs) (->Leaf Mounting)
Line 1:		Line 1:
-	Datsun 1200 used the tried and true leaf spring rear suspension, which was common among most cars - including american cars - in the early 1970s.	+	Datsun 1200 used the tried and true leaf spring rear suspension, which was common among most cars &mdash; including American cars &mdash; in the early 1970s. Also known as blade springs or cart springs.
-	= Leaf Spring Mounting =	+	= Overview =
-	Rear axle mounting and Shocks	+	Sedan and Coupe use the same leaf-pack.
-	[[http://datsun1200.com/modules/myalbum/photo.php?lid=3772 http://datsun1200.com/modules/myalbum/photos/3772.jpg]	+	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
		+	<br>{{Photo|leaf-overrider.jpg|sightings/forum}} {{Album|21316}}
		+
		+	Ute 4-leaf pack Type 2 (2nd leaf overlaps 1st leaf)
		+	<br>{{Album|24758}}
		+
		+	Front Shackle, Rear 3-bolt Bracket
		+	<br>{{UploadPost|174_619c212581f9e.jpg|496241}}
		+
		+	Rear Shackle is same for all 1200s
		+	<br>{{Album|24931}}
		+
		+	Front 3-point Mount Plate (Sedan, Coupe)
		+	<br>{{Album|18675}}
		+
		+	Sedan rear shackle pin bracket
		+	<br>{{Album|18674}}
		+
		+	Details (truck, Pin front mount)
		+	<br>{{Album|24929}} {{Photo|leaf-pins.jpg|sightings/forum}}
		+
		+	Truck rear shackle pin bracket
		+	<br>{{Album|12728}}
		+	<br>Truck front leaf pin
		+	<br>{{Album|12729}}
		+
		+	Custom adjustable shackles
		+	<br>{{Photo|shackles.jpg}}
		+
		+	= Spring Specifications =
		+	All 1200 springs are: 1110 mm long, 50mm wide
		+
		+	Spring Rate
		+	See [[Spring_Rates#Rear_Spring_Rate]]
		+
		+	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
		+
		+	Free Camber 'S'
		+	* Truck: 118.5 mm
		+	{{UploadPost|6317_51354966421f7.jpg|431466}}
		+
		+	= Leaf Mounting =
		+	{{See|Shocks#Mounting}}
		+
		+	B110 mounts leaf directly to metal (unlike B10 and B210 which use rubber-based isoclamp).
		+
		+	Rear axle mounting
		+	<br>{{Album|24932}} {{Album|3772}} {{Album|14584}}
		+
		+	Sedan mounting with Vertical Shock bolted to axle tube bracket (coupe, wagon and truck have diagonally-oriented shock bolted to lower spring seat)
		+	<br>{{Album|9744}} {{Album|28724}} {{Album|14584}}
		+
		+	B210 mounting uses an Isoclamp, with a rubber pad between the spring seat and leaf
		+	<br>{{Album|28722|png}}
		+
		+	== Spring Seat ==
		+	H10 Sedan (plain seat without shock stud)
		+	<br>{{Photo!|55262-H1001.jpg}}
	Spring Seat Assembly		Spring Seat Assembly
	Sedan: 55262-H1001		Sedan: 55262-H1001
-	Truck: 55262-G1000 (RH) & 55266-G1000 (LH)	+	Truck: 55262-G1000 (RH) 12mm shock Nut wide u-bolt
-	Van: 55262-H1402 (RH) & 55266-H1402 (LH)	+	Van: 55262-H1401 (RH) 12mm shock Nut narrow u-bolt
-	Coupe: 55262-H1802 (RH) & 55266-H1802 (LH)	+	55262-H1402 (RH) (from '73-6)
		+	Coupe: 55262-H1801 (RH) 8mm shock Nut
		+	55262-H1802 (RH) (from '73-5)
-	U-bolts	+	{{Album|18451}}
-	* 55247-H1001 CLIP-rear spring JDM ALL (except van)	+
-	* 55247-H1401 CLIP-rear spring JDM Van	+
-	* 55247-G1000 CLIP-REAR SPRING JDM B120 7510- [4-leaf packs]	+
-	* 55247-G1060 CLIP-REAR SPRING JDM B120 HARD 7804- [Heavy 5-leaf packs]	+
-	[http://datsun1200.com/modules/myalbum/photo.php?lid=18451 http://datsun1200.com/modules/myalbum/photos/18451.jpg]	+	{{See|Shock absorbers}}
-	= Bumpers =	+	G10 B120 Truck large stud for shock + large U-joints
-	Coupe & Van rear suspension bumper (above the [[Leaf Spring]])	+	<br>{{Album|24027}} {{Album|27515}} {{Album|27516}}
-	55240-H1400 ASSY-BUMPER REAR AXLE	+
		+	{{Album|25582}} {{Album|25583}}
		+
		+	H18 Coupe small stud for shock
		+	<br>{{Album|1201}} {{UploadPost|174_54d5aa409d1da.jpg|463507}}
		+
		+	Sedan and Coupe parts
		+	<br>{{Album|18721}}
		+
		+	B210 coupe
		+	<br>{{Album|2491}}
		+
		+	== U-bolts ==
		+	Ute
		+	<br>{{Album|6212}} {{AlbumH|6211|jpg|300}} {{Album|6210}}
		+
		+	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
		+	<br>{{Album|14584}}
		+
		+	Ute U-bolts (same M10 diameter but wider spacing for larger axle tube)
		+	<br>{{Album|24930}}
		+
		+	Ute U-bolts fit over 62 mm axle housings (62 mm inside diameter)
		+	<br>{{Album|26351}}
		+
		+	= 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		08911-64010 NUT-HEX M10X1.25
	08915-14010 WASHER-SPRING LOCK		08915-14010 WASHER-SPRING LOCK
		+
		+	{{Album|6210}} {{Album|24926}}
	Sedan rear suspension bumper (on the [[Shocks]])		Sedan rear suspension bumper (on the [[Shocks]])
	55240-H1001 BOUND BUMPER A		55240-H1001 BOUND BUMPER A
	56124-H1001 BOUND-BUMPER B		56124-H1001 BOUND-BUMPER B
		+	{{Album|24801}}
		+	Truck Bound Bumper
		+	<br>{{UploadPost|174_56c011bf552a9.jpg|476312}} {{Album|11171}}
-	= Part Numbers =	+	= Torque Arrester =
		+	The Torque Arrester (pinion snubber) is a rubber bumper that prevents the leafs from rotating too much under torque input.
-	== Bushings ==	+	{{Main|Rear_Axle#Pinion_Snubber}}
-	[http://datsun1200.com/modules/myalbum/photo.php?lid=18316 http://datsun1200.com/modules/myalbum/photos/18316.jpg]	+
-	<br>5 - 55044-H1001 BUSHING-rear suspension, front, upper (8)	+
-	<br>6 - [http://datsun1200.com/modules/newbb/viewtopic.php?topic_id=33838&forum=1 55045-H1000] BUSHING-rear suspension, front, lower (4) [leaf eye]	+
-	<br>* NLA in North America	+
-	<br>6 - Wagon & Truck (ute) use 55045-H1400	+
-	<br>17 - 55046-H1000 BUSHING-rear suspension, upper (4)	+
-	<br>18 - 55047-H1000 BUSHING-rear suspension, lower (4) [leaf eye]	+
-	=== Make your own ===	+	{{Album!|24159}}
		+
		+	= Bushings =
		+	{{Album|18316}}
		+
		+	5 55044-H1001 front upper Sedan, Coupe
		+	* superseded by 55044-H5001 $4.90 USD
		+	{{Album|24085}}
		+	6 [http://datsun1200.com/modules/newbb/viewtopic.php?topic_id=33838&forum=1 55045-H1000] front lower Sedan, Coupe [leaf eye, course] $3.63 USD
		+
		+	{{Album|24086}} {{1000|Parts|Leaf%20Spring%20Eye%20Rubber%20(55045-H1000).jpg|Large}}
		+
		+	17 55046-H1000 rear upper $2.27 USD
		+
		+	{{Album|24927}}
		+
		+	18 55047-H1000 rear lower [leaf eye, plain] $1.22 USD
		+
		+	NOTE: B210 USA uses the same bushes as 1200 Coupe/Sedan.
		+
		+	Wagon & Ute
		+	<br>{{Album|24922}}
		+	V 55045-H1400 front Van, Truck [leaf eye, fine] $4.25 USD
		+
		+	{{Album|24924}}
		+
		+	{{Album|20900}}
		+
		+	55044-H5001
		+	<br>{{Album|20429}}
		+
		+	Ute/Van complete set
		+	<br>{{Album|24928}}
		+
		+	== Make your own ==
	Or, make your own performance bushings per Nissan Competition book:		Or, make your own performance bushings per Nissan Competition book:
-	* [http://datsun1200.com/modules/newbb/viewtopic.php?topic_id=33838&forum=1 http://datsun1200.com/modules/myalbum/photos/thumbs/16273.jpg]	+	* {{Album!|16273}}
-	** I went to a local platics place and bought a piece of	+	** "[{{Post|204463}} I went to a local platics place and bought a piece of ...]"
-	=== Aftermarket ===	+	== Aftermarket ==
	Or, get stiff aftermarket bushings:		Or, get stiff aftermarket bushings:
-	<blockquote><hr>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.	+	<blockquote><hr>I got in touch with [[Maddat|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.
	[http://datsun1200.com/modules/newbb/viewtopic.php?topic_id=33838&forum=1 Front spring eye bushing on rear leaf spring]<hr></blockquote>		[http://datsun1200.com/modules/newbb/viewtopic.php?topic_id=33838&forum=1 Front spring eye bushing on rear leaf spring]<hr></blockquote>
		+	* Polyurethane bushings (north america): [http://www.parbo.com.mx/EN/catalogo.php?buscador=buje_6&nombre_s=Bujes%20Para%20Muelle&pagina=3 Parbo]
		+
		+	* [http://www.superpro.com.au/find/superpro-bushing-kit-for-a-superpro-suspension-parts-and-poly-bushings-for-nissan-1200-b110-sedan-1970-1974-/productnr-SPF0023K/cid-999500224/vid- SuperPro Bushings]
		+
		+	* [http://www.durothane.com/dt1240-spring-eye-bushing Durothane/Dyco] (texas)
		+
		+	= Lowering Springs =
		+	{{Main|Lowering Springs}}
		+
		+	{{Photo!|5.jpg|Datsun%201200/Parts}}
		+
		+	{{See|Lowering}}
		+
		+	= 120Y Springs =
		+	120Y B210 leaf spring is 1165mm. It is 55mm longer than 1200 B110 (1110mm) and is not interchangeable.
		+
		+	{{Album|12482}}
		+
		+	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
		+	<br>{{Album|2487}} {{Album|2488}}
		+
		+	B210 Sedan U-bolts (plate has wider spacing than B110)
		+	<br>{{Album|18491}}
		+
		+	== Isoclamp ==
		+	B210 use an Isoclamp system, similar to that used by B10.
		+
		+	Bolt holes 3 inches
		+	<br>{{Upload|174_565973852692c.jpg}}
		+
		+	Datsun 1000 clamp
		+	<br>{{Album|19924}}
		+
		+	= Alternative Leaf Springs =
		+	Composite Leafs - See [[Suspension_upgrades#Smooth_ride]]
		+
		+	{{Album!|967}}
		+
		+	= Adjustable =
		+	Unknown adjustable suspension. Does it work well?
		+	<br>{{Album|11450}}
		+
		+	= Improving =
		+	New leaf springs work very well, but worn leafs don't slide too well.
-	Polyurethane bushings out of Mexico: [http://www.parbo.com.mx/partes.php?tipo=B&fam=X&ord=3&ver=9&leng=&pag=21 Parbo]	+	{{Main|Suspension_upgrades#Smooth_ride}}
		+	&#12522;&#12540;&#12501; &#12473;&#12503;&#12522;&#12531;&#12464; &#12471;&#12515;&#12483;&#12463;&#12523; &#12502;&#12483;&#12471;&#12517;
-	[[Category:Rear Axle And Rear Suspension]]	+	[[Category:Rear Axle And Rear Suspension]]{{End}}

---

Current revision

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 1 Overview 2 Spring Specifications 3 Leaf Mounting 3.1 Spring Seat 3.2 U-bolts 4 Bound Bumpers 5 Torque Arrester 6 Bushings 6.1 Make your own 6.2 Aftermarket 7 Lowering Springs 8 120Y Springs 8.1 Isoclamp 9 Alternative Leaf Springs 10 Adjustable 11 Improving

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
Album 21316

Ute 4-leaf pack Type 2 (2nd leaf overlaps 1st leaf)
Album 24758

Front Shackle, Rear 3-bolt Bracket
Post 496241

Rear Shackle is same for all 1200s
Album 24931

Front 3-point Mount Plate (Sedan, Coupe)
Album 18675

Sedan rear shackle pin bracket
Album 18674

Details (truck, Pin front mount)
Album 24929

Truck rear shackle pin bracket
Album 12728
Truck front leaf pin
Album 12729

Custom adjustable shackles

Spring Specifications

All 1200 springs are: 1110 mm long, 50mm wide

Spring Rate
See Spring_Rates#Rear_Spring_Rate

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

Free Camber 'S'
* Truck: 118.5 mm

Post 431466

Leaf Mounting

B110 mounts leaf directly to metal (unlike B10 and B210 which use rubber-based isoclamp).

Rear axle mounting
Album 24932 Album 3772 Album 14584

Sedan mounting with Vertical Shock bolted to axle tube bracket (coupe, wagon and truck have diagonally-oriented shock bolted to lower spring seat)
Album 9744 Album 28724 Album 14584

B210 mounting uses an Isoclamp, with a rubber pad between the spring seat and leaf
Album 28722

Spring Seat

H10 Sedan (plain seat without shock stud)

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)

Album 18451

G10 B120 Truck large stud for shock + large U-joints
Album 24027 Album 27515 Album 27516

Album 25582 Album 25583

H18 Coupe small stud for shock
Album 1201 Post 463507

Sedan and Coupe parts
Album 18721

B210 coupe
Album 2491

U-bolts

Ute
Album 6212 Album 6211 Album 6210

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
Album 14584

Ute U-bolts (same M10 diameter but wider spacing for larger axle tube)
Album 24930

Ute U-bolts fit over 62 mm axle housings (62 mm inside diameter)
Album 26351

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

Album 6210 Album 24926

Sedan rear suspension bumper (on the Shocks)
55240-H1001 BOUND BUMPER A
56124-H1001 BOUND-BUMPER B
Album 24801

Truck Bound Bumper
Post 476312 Album 11171

Torque Arrester

The Torque Arrester (pinion snubber) is a rubber bumper that prevents the leafs from rotating too much under torque input.

Bushings

Album 18316

5 55044-H1001 front upper Sedan, Coupe
  * superseded by 55044-H5001 $4.90 USD
  Album 24085
6 55045-H1000 front lower Sedan, Coupe [leaf eye, course] $3.63 USD

Album 24086

17 55046-H1000 rear upper $2.27 USD

Album 24927

18 55047-H1000 rear lower [leaf eye, plain] $1.22 USD

NOTE: B210 USA uses the same bushes as 1200 Coupe/Sedan.

Wagon & Ute
Album 24922

V 55045-H1400 front Van, Truck [leaf eye, fine] $4.25 USD

Album 24924

Album 20900

55044-H5001
Album 20429

Ute/Van complete set
Album 24928

Make your own

Or, make your own performance bushings per Nissan Competition book:

• 
  • "^POST 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 (north america): Parbo

• SuperPro Bushings

• Durothane/Dyco (texas)

Lowering Springs

120Y Springs

120Y B210 leaf spring is 1165mm. It is 55mm longer than 1200 B110 (1110mm) and is not interchangeable.

Album 12482

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
Album 2487 Album 2488

B210 Sedan U-bolts (plate has wider spacing than B110)
Album 18491

Isoclamp

B210 use an Isoclamp system, similar to that used by B10.

Bolt holes 3 inches
Upload click to view

Datsun 1000 clamp
Album 19924

Alternative Leaf Springs

Composite Leafs - See Suspension_upgrades#Smooth_ride

Adjustable

Unknown adjustable suspension. Does it work well?
Album 11450

Improving

New leaf springs work very well, but worn leafs don't slide too well.

リーフ スプリング シャックル ブッシュ 

---

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