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It's Always Spring-Time at Donovan Spring!

Your One-Stop Spring & Suspension Specialists

Donovan Spring Co., Inc.
6 Enterprise Drive
Londonderry, NH 03053
(603) 627-9800
1-800-458-3867
spring@donovancompany.com

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To download vehicle specific installation information click here

DONOVAN SPRING IS AN AUTHORIZED DISTRIBUTOR & INSTALLATION FACILITY FOR TIMBREN.  TIMBREN SES KITS ARE EASY TO INSTALL BUT IF YOU RUN INTO A PROBLEM WE CAN HELP OR IF YOU PREFER WE CAN INSTALL IT FOR YOU. 
CALL OR E-MAIL US FOR AN APPOINTMENT.

 

CHEVROLET - GMC
Light Duty
Pickup Truck
YEAR   2WD  SEVERE
SERVICE
4WD  SEVERE
SERVICE

 Front Rear Front Rear
               
 COLORADO, CANYON  2015-19 N/A GMRCCA - GMFCCA GMRCCA -
 COLORADO, CANYON  2004-12 GMFC2 GMRCC  - GMFC4  GMRCC   -
 S10, ZR2 1994-04  - - GMFS10  GMRS10A  -
 S10, S15, SONOMA 2000-04  GMFS10  GMRS10B  - GMFS10 GMRS10B  -
 S10, S15, SONOMA 1982-99 GMFS10  GMRS10A  - GMFS10 GMRS10A  -
 1500 AVALANCHE  2007-13  GMFK15B  GMRYS4  - GMFK15B   GMRYS4  -
 1500 AVALANCHE...GVW 7000 LB. or less 2002-06  GMFK15A GMRG25C  - GMFK15A GMRG25C  -
 2500 AVALANCHE...GVW 8600 LB. 2002-06  GMFK25S  GMRSB4S  - GMFK25S  GMRSB4S  -
1500 SIERRA, SILVERADO...W/MAGNERIDE ONLY 2017-19 - GMRCK15MR - GMFK15CB GMRCK15MR -
1500 SIERRA, SILVERADO, DENALI…exc. XFE 2016-19 - GMRCK15S GMRTT15S GMFK15CB GMRCK15S GMRTT15S
 1500 SIERRA, SILVERADO, DENALI...exc. XFE 2007-15
- GMRCK15S GMRTT15S GMFK15CA GMRCK15S GMRTT15S
1500 SIERRA,SILVERADO,DENALI..Reg Cab or 3 door 1999-06  GMFK25S  GMRCK15S GMRTT15S GMFK15A GMRCK15S GMRTT15S
1500 SIERRA, SILVERADO,DENALI,WT..Extend or Crew Cab 1999-06  GMFK25S GMRCK15S GMRTT15S GMFK15A  GMRCK25S  GMRTT35S
 1500 HD SIERRA, SILVERADO..incl. CLASSIC 2001-07  GMFK25S  GMRCK25S  GMRTT35S GMFK25S   GMRCK25S  GMRTT35S
 C10, C1500, K10, K1500 1988-99  GMFC1588H  GMRC25HD  - GMFK35C  GMRCK25  GMRCK35MA
 C10, C1500, K10, K1500 1973-87  GMFC15  GMRC20  - GMFK10  GMRK10  -
C10, C1500, K10, K1500...with rear coil springs 1963-72   GMFC15 GMRC10A  - -
 2500HD SIERRA, SILVERADO 2011-19  GMFK25D GMRCK25D  GMRTT35D  GMFK25D  GMRCK25D GMRTT35D
 2500 SIERRA, SILVERADO, 1500HD, 2500HD 1999-10  GMFK25S  GMRCK25S  GMRTT35S GMFK25S  GMRCK25S  GMRTT35S
C2500 1988-99  GMFC1588H  GMRC25HD  GMRTT35C -
C20 1973-87  GMFC15  GMRC20  GMRTTC30 -
C20....with rear coil springs 1963-72  GMFC15  GMRC10A  - -
 K2500.....with front cast lower control arm 1996-00  - GMFK25S  GMRCK25  GMRCK35MA
 K2500....with front stamped lower control arm 1988-98  - GMFK35C  GMRCK25  GMRCK35MA
 K20 1973-87  - - GMFK10  GMRK10  GMRTTK30
 3500HD SIERRA, SILVERADO 2011-19  GMFK25D GMRCK25D GMRTT35D  GMFK25D GMRCK25D GMRTT35D
 3500 SIERRA, SILVERADO 2001-10   GMFK25S GMRCK35S  GMRTT35S GMFK25S  GMRCK35S  GMRTT35S
 C3500 1988-00   GMFC1588H  GMRCK35  GMRCK35MA -
 C30 1973-87  GMFC15  GMRC30  GMRTTC30 -
C30 1968-72  GMFC15  GMRP30  - -
K3500....with front cast lower control arm 1996-00  - - GMFK25S  GMRCK35  GMRCK35MA
K3500...with front stamped lower control arm 1988-96  - GMFK35C  GMRCK35  GMRTTK30
K30 1977-87  - GMFK10  GMRK30  GMRTTK30
               
CAB & CHASSIS  YEAR    2WD  Severe
Service
4WD   Severe
Service
Front Rear Front Rear
 3500 SIERRA, SILVERADO 2011-19  GMFK25D GMRCK25D GMRTT35D  GMFK25D  GMRCK25D GMRTT35D
 3500 SIERRA, SILVERADO.exc single rear wheel  2001-10 GMFK25S  GMRCK35C  GMRTT35C  GMFK25S  GMRCK35C  GMRTT35C
 3500 SIERRA, SILVERADO .single rear wheel  2004-10 GMFK25S  GMRCK35S  GMRTT35S  GMFK25S  GMRCK35S  GMRTT35S
C3500, K3500.with front cast lower control arm  1996-00  GMFC1588H  GMRC30 GMRTTC35  GMFK25S  GMRC30 GMRTTC35
C3500, K3500.with front stamped lower control arm  1990-96  GMFC1588H  GMRC30 GMRTTC35  GMFK35C  GMRC30 GMRTTC35
 C30, C3500, K30, K3500  1973-89  GMFC15  GMRC30 GMRTTC30  GMFK10  GMRK30 GMRTTK30
 2500HD, 3500HD.OEM/Box Delete 42" frame spacing  2007-10  GMFK25S  GMRCK35S  GMRTT35C  -  - -
 3500HD.34" frame spacing 2007-10  GMFK25S GMRCK35C GMRTT35C  GMFK25S  GMRCK35C GMRTT35C
 C3500HD.with leaf spring front suspension  1991-04  GMF35HDA  GMR35HDM -  - -
4500 SIERRA, SILVERADO 2019 GMFK25D TBA TBA GMFK25D TBA TBA
               
 MEDIUM & HEAVY DUTY CONVENTIONAL YEAR  FRONT    REAR   
Regular HD
  Regular HD
 
4500HD, 5500HD, 6500HD, 7500HD 2019 TBA TBA - TBA TBA -
4500, 5500, 6500, 7500.EXC 4WD 2003-09 GMFTK - - GMRC55 GMRTKM -
 4500, 5500, 6500, 7500.4WD 2005-09   GMF55AWD  -  -  GMRC55  GMRTKM  -
 6500 LoPro 2003-09   GMFTKLP  -  -  GMRC55  GMRTKM  -
 TOPKICK & KODIAK C60, C70, C6000, C7000  exc LoPro 1991-02  GMFTK   -  -  GMRC55  GMRTKM  -
 TOPKICK & KODIAK C60, C70, C6000, C7000  LoPro 1991-02   GMFTKLP  -  -  GMRC55  GMRTKM  -
 C50, C60, C70, C6000, C7000 1973-90   GMFC70  -  -  GMRC70  -  -
               
 MEDIUM & HEAVY DUTY
  CAB FORWARD
 
 YEAR
FRONT   REAR  
 Regular HD   Regular HD
 
 W35, W3500  1998-09  GMFW4C  -    GMRW35  GMRW55  
 W4/4000/4500, W5,5000,5500  1988-09  GMFW4C  -    GMRW4A  GMRW55  
 W7, 7000  1988-96  GMFW7   -    RESOS1 (d)   URMDB(d)   
 T5500, T6500, T7500, T8500  1997-09  GMFTK  -    GMRC55  GMRTKM  
               
(d) drilling required  -  (p)  professional installation required  -  (w) welding required  -  (wd) welding & drilling required      

 

CHEVROLET - GENERAL MOTORS
Light Duty
  SUV 
 
YEAR   2WD    4WD   
Front Rear   Front Rear  
 HHR 2006-11  - GMRHHR(p)     - -  
 AZTEK, RENDEZ VOUS.exc air shocks  2001-07  GMRAZT(p)    GMRREN(p)   
 SATURN, VUE , EQUINOX, TORRENT 2002-07  GMRVUE(p)    GMRVUE(p)   
 TRAIL-BLAZER, ENVOY, BRAVADA, RAINIER 2002-09  GMRETB    GMRETB   
 BLAZER, JIMMY Classic.old body style 2002-05  GMFS10  GMRJB     GMFS10 GMRJB  
S10 BLAZER, JIMMY, ENVOY, BRAVADA .except full size 1995-01  GMFS10  GMRJB   GMFS10 GMRJB   
 S10 BLAZER, JIMMY, BRAVADA.exc full size 1975-94  GMFS10 GMRS10A    GMFS10 GMRS10A  
 DENALI, ESCALADE, YUKON, TAHOE.exc XFE 2007-19 
GMFK15B  GMRYS4     GMFK15B GMRYS4   
 DENALI, ESCALADE.coil rear 2002-06  GMFK25S  GMRYS4    GMFK15A  GMRG25C   
 DENALI, ESCALADE.leaf rear 2000-01  GMFC1588H  GMRYT2    GMFK35C  GMRYT4   
 YUKON, TAHOE.coil rear 2000-06  GMFK25S  GMRYS4    GMFK15A  GMRG25C   
 YUKON, YUKON-DENALI, TAHOE, ESCALADE,.leaf rear 1992-00   GMFC1588H GMRYT2     GMFK35C  GMRYT4  
 HUMMER H2 2003-10    GMFK25S GMRH2   
 HUMMER H3, H3T 2005-10    GMFC4  GMRETB   
 SUBURBAN, YUKON XL 1500 2007-16
GMRYS4    GMFK15B  GMRYS4   
 SUBURBAN, YUKON XL 1500 2000-06  GMFK25S   GMRYS4    GMFK15A GMRYS4   
 SUBURBAN, YUKON XL 2500 2000-19 
GMFK25S  GMRSB4S     GMFK25S  GMRSB4S   
 SUBURBAN, JIMMY, K-BLAZER.full size 1993-99  GMFC1588H  GMRSB    GMFK35C  GMRSB4   
 SUBURBAN, JIMMY, K-BLAZER.full size 1992  GMFC1588H GMRC20    GMFK35C  GMRK10   
 SUBURBAN, JIMMY, K-BLAZER.full size 1973-91  GMFC15  GMRC20    GMFK10  GMRK10    
               
 VAN, MOTOR HOME   YEAR   2WD    4WD 
 
Front Rear   Front Rear  
CITY EXPRESS.commercial & passenger VAN 2014-19 - DVR05096   - -  
 ASTRO, SAFARI.steel rear springs  1996-05  GMFAST  GMRASTB    GMFAST4  GMRASTB   
 ASTRO, SAFARI.commercial appl. - steel rear springs 1996-05  GMFAST  GMRASTBHD    GMFAST4  GMRASTBHD  
 ASTRO, SAFARI.composite rear springs 1985-95  GMFAST  GMRASTR    GMFAST  GMRASTR   
 UPLANDER, TERRAZA, MONTANA SV6, RELAY  2005-09  - GMRAZT(p)    GMRUPL(p)   
 VENTURE, MONTANA, TRANS SPORT, SILHOUETTE.exc air shocks  1997-04  GMRAZT(p)    GMRREN(p)   
 LUMINA APV, TRANS SPORT, SILHOUETTE 1990-96  GMRAPV     
 G/H1500-CHEVY, EXPRESS, SAVANA 2003-14 GMFK15A  GMRG25C     GMFK15A GMRG25C   
 G1500-CHEVY, EXPRESS, SAVANA 1996-02  GMFC1588H  GMRG25C     
 G 2500-CHEVY, EXPRESS, SAVANA.8 bolt wheel 2010-19 GMFK15A  GMRG35   - -  
 G/H 2500-CHEVY, EXPRESS, SAVANA.6 bolt wheel 2003-09 GMFK15A  GMRG25C    GMFK15A GMRG25C   
 G2500-CHEVY, EXPRESS, SAVANA.8 bolt wheel, DIESEL 1996-02  GMFC1588H   GMRG35    
 G2500-CHEVY, SAVANA DIESEL.6 bolt wheel 1996-02  GMFC1588H  GMRG25C     
 G20/2500 1975-96  GMFG20  GMRG20     
 G3500-CHEVY, EXPRESS, SAVANA 2003-19 GMFG45  GMRG35   GMFK15A  GMRG35  
 G3500-CHEVY, EXPRESS, SAVANA 1997-02 GMFC1588H   GMRG35    -  
 G30/ 3500.box frame - van body 1975-96  GMFG20  GMRG35    
               
CUTAWAY VAN, MOTOR HOME
CAB OVER & STRIPPED CHASSIS
 
 YEAR  FRONT    REAR   
Motorhome
Cube Van
  Motorhome Cube Van
 
 G3500, G4500 2013-19 GMFG45 GMFG45   GMRG45MH GMRG45  
 G3500, G4500.1 bolt rear bump stop bracket 2003-12 GMFG45 GMFG45   GMRG30 GMRG30LB  
 G3500, G450.2 bolt rear bump stop bracket 2003-12 GMFG45 GMFG45   - GMRG30PL  
 G3500.Channel frame 1997-02  GMFC1588H  GMFC1588H    GMRG30  GMRG30LB  
 G30, G3500.Channel frame 1975-96  GMFG20  GMFG20   GMRG30  GMRG30LB   
 P30, P32, P42, P60.bump stop over U bolt pad 1995-99    GMRP30MH   GMRP30MH   
 P30, P32, P42, P60.ind. front suspension (coil springs) 1975-99  GMFP30W  GMFP30W    GMRP30  GMRP30HD   
P32,  P42 B."I" beam front suspension (leaf springs) 1975-99  WFRW22  WFRW22     GMRP30  GMRP30HD    
               
(d) drilling required  -  (p)  professional installation required  -  (w) welding required  -  (wd) welding & drilling required

 

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