Idler arm

The Idler Arm is part of the Steering Linkage, and is the counterpoint to the Steering Gear Arm.

Overview

The idler arm has replaceable #bushings. When these wear out it causes the infamous double-knock sound when going over bumps.

The Idler Arm bolts to the subframe rail on opposite side from the steering gearbox.

https://i297.photobucket.com/albums/mm219/ddgonzal/wiki/25282c.jpg

Steering_Linkage: #1 Idler Arm

Album 4932

The bolts go through the Front Side Member (front chassis rail).

https://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Parts2/steering_linkage.jpg

4It fastens to the chassis via two long bolts.

https://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Parts2/48530-H1000_d.jpg https://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Parts2/48530-H1000_e.jpg Album 24332

RHD

RHD Idler Arm is the same for all 1200s: ute/wagon/sedan/coupe — even the 1994 Sunny Truck uses the same part number.

48530-H1000 1970-1994

Album 18722 https://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Parts2/48350-H1000_2.jpg

https://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Parts2/48530-H1000_1A.jpg https://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Parts2/48530-H1000_1B.jpg Album 22793

https://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Parts2/48530-H1000_A.jpg https://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Parts2/48530-H1000_B.jpg https://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Parts2/48530-H1000.jpg

555 was original OEM

https://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Parts2/48530-H1000_c.jpg https://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Parts2/48530-H1000_555a.jpg https://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Parts2/48530-H1000_555b.jpg https://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Parts2/48530-H1000_555c.jpg

LHD

LHD assembly part number differs from RHD. All the sub-parts (including the arm crank) are the same. However, the bracket looks like the RHD part turned upside down.

Album 24331

Idler Arm LHD * 48530-H1600 ASSY-IDLER STEERING [LHD] * RockAuto.com * TRW 18778 through 7/72

Bushing

The same bushing set is used by RHD and LHD.

Nissan Retail Price: $8.25 (2016 prices)

Album 26304

Idler Arm Bushing * 48544-H1000 BUSH-IDLER * Beck/Arnley 1013851 (2 per idler arm) at http://rockauto.com Fits: ** Mitsubishi/Chrysler 1983-1993 various models ** Nissan B110, B310, S110, 1979-1981 S130, A10, 1980-1982 720, 1977-1980 810

Idler Arm Repair Kit (includes 2 bushes, washer & lock nut) * Raybestos 4501067 * ACDelco 45C1067 or 88911321 $8.41 Rockauto.com

https://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Parts2/Idler_Arm_bush_a.jpg https://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Parts2/Idler_Arm_bush_b.jpg

Album 7181

Comparison

B10 vs 1200 vs 510

https://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Parts2/48530-18001.jpg https://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Parts2/48530-H1000_SI4090.jpg https://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Parts2/48530_21000_SI4050.jpg

48530-18001 RHD Datsun 1000

https://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Parts2/48530-18001_c.jpg https://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Parts2/48530-18001_a.jpg https://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Parts2/48530-18001_b.jpg

48530-21000 RHD PB110(L14) PB210(L14),GB210(L16) 510/610 Bluebird 710 Violet S10 Silvia https://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Parts2/8530_21000.jpg

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