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Timbren 1975 Chevrolet C20 Rear Suspension Enhancement System

SKU: TIMGMRTTC30

Suspension Helper Springs

TIM Suspension Enhancement Systems...

Timbren 1975 Chevrolet C20 Rear Suspension Enhancement System

SKU: TIMGMRTTC30

Suspension Helper Springs

TIM Suspension Enhancement Systems...

A$632.96
Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.
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Description

Timbren Suspension Kits (SES Kits) are designed to enhance the suspension of your vehicle. Easiest to use: Rubber cushions absorb road shocks and automatically adjust to uneven loads or road conditions. Easiest to maintain: There are no airlines or fittings to allow leaks. Simply bolt the kit on and you are set for a lifetime of trouble free suspension. Easiest to install: There are no holes to drill, no airlines to route and SES Kits can be installed in a matter of minutes using basic hand tools. The softer ride quality of todays trucks and the mediocre suspensions found on most trailers can cause excessive trailer sway, instability and suspension high performance suspension packages will ensure added safety and peace of mind.

Product Overview

Timbren Suspension Kits (SES Kits) are designed to enhance the suspension of your vehicle. Easiest to use: Rubber cushions absorb road shocks and automatically adjust to uneven loads or road conditions. Easiest to maintain: There are no airlines or fittings to allow leaks. Simply bolt the kit on and you are set for a lifetime of trouble free suspension.Easiest to install: There are no holes to drill, no airlines to route and SES Kits can be installed in a matter of minutes using basic hand tools. The softer ride quality of todays trucks and the mediocre suspensions found on most trailers can cause excessive trailer sway, instability and suspension settling.Timbrens high performance suspension packages will ensure added safety and peace of mind.


Features and Benefits

  • Leaders In Rubber Spring Technology Since 1965
  • Eliminate Vehicle Squatting & Sagging
  • Cushion Road Shocks
  • Improve Handling
  • Lifetime Warranty

Product Details

Axle Style:N/A
Bracket Color:Black
Bushing Color:Black
Bushing Material:Rubber
Capacity:8,000 lbs.
Description:Suspension Enhancement System
Grade Type:Performance
Mounting Hardware Included:Yes
Part Number:timGMRTTC30
Position:Rear
Prop 65 Yes/No:No
Spring Rate:Progressive
Universal Or Specific Fit:Specific
Usage:Medium Duty Truck
What's Included:(2x) Mounting brackets, (2x) Patented Aeon(r) SES suspensions (hollow rubber springs), All necessary hardware

Part Type

Suspension Rubber Helper Spring Kit

Data: v4.2 - Upd: 2026-10-13 21:45:39

Features

  • Cushion Road Shocks
  • Eliminate Vehicle Squatting & Sagging
  • Improve Handling
  • Leaders In Rubber Spring Technology Since 1965
  • Lifetime Warranty

Specifications

Product Attributes - Brand
Timbren Industries
Product Attributes - Manufacturer's Part Number
GMRTTC30
Product Attributes - Part Type
Suspension Helper Springs
Product Attributes - Product Line
Timbren Suspension Enhancement Systems
Product Attributes - UPC
809933002040
Product Attributes - Maximum Safe Load
8,000 lbs.
Product Attributes - Spring Finish
Black
Product Attributes - Drilling Required
No
Product Attributes - Installation Kit Required
No
Product Attributes - Hardware Included
Yes
Product Attributes - Quantity
Sold as a kit.

Reference Information

Brand Name/s Timbren
StreetFX SKU timGMRTTC30
SFX Item ID 4337423
Supplier Item Code 4337423
Manufacturer SKU GMRTTC30
Manufacturer UPC 809933002040
Alternative References TBI-GMRTTC30, C20

Compatibility

Application Data
  • MakeGMC
    ModelC3500
    SubmodelSIERRA SLX
    Beginning Year1988
    Ending Year1989
    DrivetrainRWD
    Helper Spring PositionRear
    Application NotesWeight Capacity 8000 lbs.; Severe Service-Slide-In Camper Or Salt Spreader
  • MakeGMC
    ModelC35
    SubmodelBASE
    Beginning Year1975
    Ending Year1978
    DrivetrainRWD
    Helper Spring PositionRear
    Application NotesBed Length Metric: 243.8. Weight Capacity 8000 lbs.; Severe Service-Slide-In Camper Or Salt Spreader
  • MakeGMC
    ModelC35
    SubmodelHIGH SIERRA
    Beginning Year1988
    Ending Year1978
    DrivetrainRWD
    Helper Spring PositionRear
    Application NotesBed Length Metric: 243.8. Weight Capacity 8000 lbs.; Severe Service-Slide-In Camper Or Salt Spreader
  • MakeGMC
    ModelC35
    SubmodelSIERRA CLASSIC
    Beginning Year1975
    Ending Year1978
    DrivetrainRWD
    Helper Spring PositionRear
    Application NotesBed Length Metric: 243.8. Weight Capacity 8000 lbs.; Severe Service-Slide-In Camper Or Salt Spreader
  • MakeGMC
    ModelC35
    SubmodelSIERRA GRANDE
    Beginning Year1975
    Ending Year1978
    Helper Spring PositionRear
    Application NotesBed Length Metric: 243.8. Weight Capacity 8000 lbs.; Severe Service-Slide-In Camper Or Salt Spreader
    DrivetrainRWD
  • MakeGMC
    ModelR2500
    SubmodelBASE
    Beginning Year1987
    Ending Year1987
    DrivetrainRWD
    Helper Spring PositionRear
    Application NotesWeight Capacity 8000 lbs.; Severe Service-Slide-In Camper Or Salt Spreader
  • MakeGMC
    ModelR2500
    SubmodelHIGH SIERRA
    Beginning Year1987
    Ending Year1987
    DrivetrainRWD
    Helper Spring PositionRear
    Application NotesWeight Capacity 8000 lbs.; Severe Service-Slide-In Camper Or Salt Spreader
  • MakeGMC
    ModelR2500
    SubmodelSIERRA CLASSIC
    Beginning Year1987
    Ending Year1987
    DrivetrainRWD
    Helper Spring PositionRear
    Application NotesWeight Capacity 8000 lbs.; Severe Service-Slide-In Camper Or Salt Spreader
  • MakeGMC
    ModelR3500
    SubmodelBASE
    Beginning Year1987
    Ending Year1987
    DrivetrainRWD
    Helper Spring PositionRear
    Application NotesWeight Capacity 8000 lbs.; Severe Service-Slide-In Camper Or Salt Spreader
  • MakeGMC
    ModelR3500
    SubmodelBASE
    Beginning Year1988
    Ending Year1989
    DrivetrainRWD
    Helper Spring PositionRear
    Application NotesWeight Capacity 8000 lbs.; Severe Service-Slide-In Camper Or Salt Spreader
  • MakeGMC
    ModelR3500
    SubmodelHIGH SIERRA
    Beginning Year1987
    Ending Year1987
    DrivetrainRWD
    Helper Spring PositionRear
    Application NotesWeight Capacity 8000 lbs.; Severe Service-Slide-In Camper Or Salt Spreader
  • MakeGMC
    ModelR3500
    SubmodelHIGH SIERRA
    Beginning Year1988
    Ending Year1989
    DrivetrainRWD
    Helper Spring PositionRear
    Application NotesWeight Capacity 8000 lbs.; Severe Service-Slide-In Camper Or Salt Spreader
  • MakeGMC
    ModelR3500
    SubmodelSIERRA CLASSIC
    Beginning Year1987
    Ending Year1987
    Helper Spring PositionRear
    Application NotesBed Length Metric: 243.8. Weight Capacity 8000 lbs.; Severe Service-Slide-In Camper Or Salt Spreader
    DrivetrainRWD
  • MakeGMC
    ModelR3500
    SubmodelSIERRA CLASSIC
    Beginning Year1988
    Ending Year1989
    DrivetrainRWD
    Helper Spring PositionRear
    Application NotesWeight Capacity 8000 lbs.; Severe Service-Slide-In Camper Or Salt Spreader
  • MakeGMC
    ModelC25
    SubmodelBASE
    Beginning Year1975
    Ending Year1978
    DrivetrainRWD
    Helper Spring PositionRear
    Application NotesWeight Capacity 8000 lbs.; Severe Service-Slide-In Camper Or Salt Spreader
  • MakeGMC
    ModelC25
    SubmodelHIGH SIERRA
    Beginning Year1975
    Ending Year1978
    DrivetrainRWD
    Helper Spring PositionRear
    Application NotesWeight Capacity 8000 lbs.; Severe Service-Slide-In Camper Or Salt Spreader
  • MakeGMC
    ModelC25
    SubmodelSIERRA CLASSIC
    Beginning Year1975
    Ending Year1978
    DrivetrainRWD
    Helper Spring PositionRear
    Application NotesWeight Capacity 8000 lbs.; Severe Service-Slide-In Camper Or Salt Spreader
  • MakeGMC
    ModelC25
    SubmodelSIERRA GRANDE
    Beginning Year1975
    Ending Year1978
    DrivetrainRWD
    Helper Spring PositionRear
    Application NotesWeight Capacity 8000 lbs.; Severe Service-Slide-In Camper Or Salt Spreader
  • MakeGMC
    ModelC35/C3500 PICKUP
    SubmodelBASE
    Beginning Year1973
    Ending Year1974
    DrivetrainRWD
    Helper Spring PositionRear
    Application NotesWeight Capacity 8000 lbs.; Severe Service-Slide-In Camper Or Salt Spreader
  • MakeGMC
    ModelC3500
    SubmodelBASE
    Beginning Year1979
    Ending Year1986
    DrivetrainRWD
    Helper Spring PositionRear
    Application NotesBed Length Metric: 243.8. Weight Capacity 8000 lbs.; Severe Service-Slide-In Camper Or Salt Spreader
  • MakeGMC
    ModelC3500
    SubmodelHIGH SIERRA
    Beginning Year1979
    Ending Year1986
    DrivetrainRWD
    Helper Spring PositionRear
    Application NotesBed Length Metric: 243.8. Weight Capacity 8000 lbs.; Severe Service-Slide-In Camper Or Salt Spreader
  • MakeGMC
    ModelC3500
    SubmodelSIERRA
    Beginning Year1988
    Ending Year1989
    DrivetrainRWD
    Helper Spring PositionRear
    Application NotesWeight Capacity 8000 lbs.; Severe Service-Slide-In Camper Or Salt Spreader
  • MakeGMC
    ModelC3500
    SubmodelSIERRA CLASSIC
    Beginning Year1979
    Ending Year1986
    DrivetrainRWD
    Helper Spring PositionRear
    Application NotesBed Length Metric: 243.8. Weight Capacity 8000 lbs.; Severe Service-Slide-In Camper Or Salt Spreader
  • MakeGMC
    ModelC3500
    SubmodelSIERRA GRANDE
    Beginning Year1979
    Ending Year1982
    DrivetrainRWD
    Helper Spring PositionRear
    Application NotesBed Length Metric: 243.8. Weight Capacity 8000 lbs.; Severe Service-Slide-In Camper Or Salt Spreader
  • MakeGMC
    ModelC3500
    SubmodelSIERRA SLE
    Beginning Year1988
    Ending Year1989
    DrivetrainRWD
    Helper Spring PositionRear
    Application NotesWeight Capacity 8000 lbs.; Severe Service-Slide-In Camper Or Salt Spreader

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