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1955-1957 CHEVY PRO-G BOLT-IN INDEPENDENT REAR SUSPENSION


COMPLETE BASE KIT STARTING AT $10,235

The Tri-Five HEIDTS Pro-G™ IRS is a true bolt-in, high horsepower Independent Rear Suspension System for 1955 through 1957 Chevy cars. This industry-leading design is based off the proven and award-winning HEIDTS Pro-G™
IRS geometry, while the bolt-in design means it can be installed on cars that are already complete or easily added to builds already underway. The Tri-Five 55-57 Chevy BOLT-IN INDEPENDENT REAR SUSPENSION also features several design enhancements to make exhaust routing easier. For information on our 55-57 Chevy 4-Link, please click here

**Images may not reflect actual product.

Installation Instructions

UntitledWARNING: This product can expose you to chemicals including nickel and urethane, which are known to the State of California to cause cancer and birth defects or other reproductive harm.  For more information go to www.P65Warnings.ca.gov.

Select your options and Add To Cart below.

   *Shown Painted -- This item is shipped unpainted.

COMPLETE BASE KIT(Select One)
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Description & Part #
Base Price

TRI-5 IRS, PLAIN
Part# IRS-151
$10,235.00

TRI-5 IRS, POLISHED
Part# IRS-151-P
$16,795.00

TRI-5 IRS, DRILLED ROTORS
Part# IRS-151-S
$10,600.00

TRI-5 IRS, DRLLED ROTORS, POLISHED
Part# IRS-151-S-P
$17,161.00
SHOCK & SPRINGS OPTION(Select One)Reset Selection
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Description & Part #
Base Price
BILLET COIL-OVER SHOCKS (CS-XXX-10 Included)
Part# CB-106-K-K
Included in base kit!
3RD MEMBER OPTIONS(Select One)Reset Selection
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Description & Part #
Base Price
POSITRACTION 31 SPLINE 9″ GEAR
Part# BN-XXX-I-L
Included in base kit!
BRAKE OPTIONS
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Description & Part #
Base Price

PRO-G IRS PARKING BRAKE KIT
Part# PB-101
Add for ea. $677.00
E-STOPP PUSH BUTTON ELECTRIC PARKING BRAKE
Part# BM-013
Add for ea. $817.00
AIR RIDE
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Description & Part #
Base Price
RIDETECH SHOCKWAVE HQ-02014085 (PAIR)
Part# HQ-02014085
Add for ea. $900.00
RIDEPRO 4 WAY STANDARD ANALOG SYSTEM
Part# 30154000
Add for ea. $1,000.00
RIDEPRO 4 WAY STANDARD WITH 5 GALLON TANK
Part# 30154100
Add for ea. $1,200.00
RIDETECH AIRPOD CONTROL SYSTEM
Part# 30314000
Add for ea. $1,800.00
RIDETECH AIRPOD SYSTEM WITH 5 GALLON TANK
Part# 30314100
Add for ea. $2,000.00

Total:

Contact Tech Support: CALL 1-800-841-8188
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