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1998 Chevrolet S10 Pickup 1998-99 STEERING Power Recirculating Ball - Trucks - Except Tracker

1998-99 STEERING Power Recirculating Ball - Trucks - Except Tracker

MODEL IDENTIFICATION MODEL IDENTIFICATION - TRUCKS Model Series (1) "C" 2WD Pickup, Sierra, Silverado, Suburban, Tahoe & Yukon "G" Express, G-Van & Savana "K" 4WD Pickup, Sierra, Silverado, Suburban, Tahoe, Yukon & AWD Escalade "L" AWD Astro & Safari "M" 2WD Astro & Safari "P" Commercial Van (P42) & Motorhome (P32) "S" 2WD Blazer, Envoy, Jimmy, Pickup & Sonoma "T" 4WD Blazer, Bravada, Envoy, Jimmy, Pickup & Sonoma (1) Vehicle series is fifth character of VIN.

DESCRIPTION & OPERATION Steering gear is a variable ratio, recirculating ball-type which acts as a rolling thread between worm shaft and rack piston. The worm shaft is supported at lower end by a thrust bearing with 2 races. It is supported at upper end by a bearing assembly in the adjuster plug. Control valves, located inside steering gear housing, direct power steering fluid to either side of rack piston. See Fig. 1 . Steering linkage connects steering gear to front wheels through pitman arm. Steering linkage consists of pitman arm, idler arm, relay rod and tie rods. See Fig. 2 - Fig. 12 . Tie rod ends connect to relay rod by ball studs. Adjuster tubes between inner and outer tie rod ends are used to adjust toe. Some models have a shock absorber attached to relay rod. Two different types of vane-type power steering pumps are used. The Model "P" pump is mounted inside reservoir. See Fig. 18 . The Model "CB" pump is mounted below reservoir. See Fig. 20 . On both models, vanes are driven by a rotor and move fluid from intake to pressure cavities of pump ring.

Microsoft Saturday, September 12, 2009 11:14:41 11:14:37 AM

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Š 2005 Mitchell Repair Information Company, LLC.


1998 Chevrolet S10 Pickup 1998-99 STEERING Power Recirculating Ball - Trucks - Except Tracker

Fig. 1: Exploded View Of Power Steering Gear Courtesy of GENERAL MOTORS CORP.

Microsoft Saturday, September 12, 2009 11:14:37 AM

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© 2005 Mitchell Repair Information Company, LLC.


1998 Chevrolet S10 Pickup 1998-99 STEERING Power Recirculating Ball - Trucks - Except Tracker

Fig. 2: Exploded View Of Steering Linkage (Astro & Safari - 2WD) Courtesy of GENERAL MOTORS CORP.

Microsoft Saturday, September 12, 2009 11:14:37 AM

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© 2005 Mitchell Repair Information Company, LLC.


1998 Chevrolet S10 Pickup 1998-99 STEERING Power Recirculating Ball - Trucks - Except Tracker

Fig. 3: Exploded View Of Steering Linkage (Astro & Safari - AWD) Courtesy of GENERAL MOTORS CORP.

Microsoft Saturday, September 12, 2009 11:14:37 AM

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© 2005 Mitchell Repair Information Company, LLC.


1998 Chevrolet S10 Pickup 1998-99 STEERING Power Recirculating Ball - Trucks - Except Tracker

Fig. 4: Exploded View Of Steering Linkage (Commercial Van) Courtesy of GENERAL MOTORS CORP.

Microsoft Saturday, September 12, 2009 11:14:37 AM

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© 2005 Mitchell Repair Information Company, LLC.


1998 Chevrolet S10 Pickup 1998-99 STEERING Power Recirculating Ball - Trucks - Except Tracker

Fig. 5: Exploded View Of Steering Linkage (Commercial Van - "I" Beam Axle) Courtesy of GENERAL MOTORS CORP.

Microsoft Saturday, September 12, 2009 11:14:37 AM

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© 2005 Mitchell Repair Information Company, LLC.


1998 Chevrolet S10 Pickup 1998-99 STEERING Power Recirculating Ball - Trucks - Except Tracker

Fig. 6: Exploded View Of Steering Linkage (Commercial Van - Motorhome) Courtesy of GENERAL MOTORS CORP.

Microsoft Saturday, September 12, 2009 11:14:37 AM

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© 2005 Mitchell Repair Information Company, LLC.


1998 Chevrolet S10 Pickup 1998-99 STEERING Power Recirculating Ball - Trucks - Except Tracker

Fig. 7: Exploded View Of Steering Linkage (Express, G-Van & Savana) Courtesy of GENERAL MOTORS CORP.

Microsoft Saturday, September 12, 2009 11:14:37 AM

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© 2005 Mitchell Repair Information Company, LLC.


1998 Chevrolet S10 Pickup 1998-99 STEERING Power Recirculating Ball - Trucks - Except Tracker

Fig. 8: Exploded View Of Steering Linkage (2WD Escalade, Sierra, Suburban, Tahoe, Yukon & "C" Series Pickup) Courtesy of GENERAL MOTORS CORP.

Microsoft Saturday, September 12, 2009 11:14:37 AM

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© 2005 Mitchell Repair Information Company, LLC.


1998 Chevrolet S10 Pickup 1998-99 STEERING Power Recirculating Ball - Trucks - Except Tracker

Fig. 9: Exploded View Of Steering Linkage (4WD Escalade, Sierra, Suburban, Tahoe, Yukon & "K" Series Pickup) Courtesy of GENERAL MOTORS CORP.

Microsoft Saturday, September 12, 2009 11:14:37 AM

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© 2005 Mitchell Repair Information Company, LLC.


1998 Chevrolet S10 Pickup 1998-99 STEERING Power Recirculating Ball - Trucks - Except Tracker

Fig. 10: Exploded View Of Steering Linkage ("C" Series Pickup - "I" Beam Axle) Courtesy of GENERAL MOTORS CORP.

Microsoft Saturday, September 12, 2009 11:14:37 AM

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© 2005 Mitchell Repair Information Company, LLC.


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