TRZ Motorsports GM Manual Rack and Pinion Conversion Kit - TRZ Drop - 1.5" or 2" (1971 - 1976 Chevy Impala / Caprice - B-Body) - 321-3T
Rack & Pinion Conversion for TRZ Drop Spindles (71 - 76 Impala & Caprice)
The TRZ Motorsports GM Manual Rack and Pinion Conversion Kit for TRZ 1.5" or 2" drop spindles is engineered to significantly improve steering precision and weight distribution on 1971 - 1976 Chevy Impala and Caprice B-Body platforms. By replacing the bulky OEM steering system with a properly narrowed Pinto-style manual rack, this kit sharpens steering response, reduces front-end mass, and delivers the geometry control needed for serious performance builds.
This steering conversion is not bolt-in. Cutting, welding, and fabrication are required to position the rack correctly for improved Ackermann and reduced bump-steer. For best results, TRZ recommends professional chassis-shop installation.
The kit includes an adjustable bump-steer / tie-rod adjuster assembly, rack clamp and mount plate, a 3/4" chrome-moly steering shaft with supporting brace, and three chrome-moly U-joints (one 9/16" - 26 spline to 3/4" joint plus two 3/4" 3/4" smooth joints). Billet aluminum steering arms are included where applicable for compatible GM platforms.
Spindle Notes
Select your spindle type carefully before ordering:
- Factory / Non-TRZ Drop Spindles: Aftermarket brands such as Belltech and Summit follow factory geometry and require the factory-spindle version of this kit.
- TRZ Drop Spindles (1.5" or 2"): These use a specific tie-rod adjuster length designed to improve toe accuracy and maximize bump-steer correction. This kit (321-3T) includes the correct TRZ-specific adjusters.
Performance Features
- Engineered for TRZ 1.5" and 2" drop spindles
- Custom-narrowed Pinto-style manual rack for B-Body chassis
- Adjustable bump-steer and tie-rod adjuster kit included
- Rack clamp and mount plate for secure chassis integration
- 3/4" chrome-moly steering shaft with shaft brace
- (3) chrome-moly U-joints (1 spline + 2 smooth)
- Billet aluminum steering arms included where applicable
- Requires cutting, welding, and fabricationprofessional installation recommended
Quick Specs
- Applications: 1971 - 1976 Chevy Impala & Caprice (B-Body)
- Spindles: TRZ 1.5" or 2" drop spindles
- Steering: Pinto-style manual rack
- Materials: Chrome-moly shaft & U-joints; billet aluminum arms
- Installation: Requires fabrication
- Part Number: 321-3T
Fitment
- 1971 Chevrolet Impala
- 1972 Chevrolet Impala
- 1973 Chevrolet Impala
- 1974 Chevrolet Impala
- 1975 Chevrolet Impala
- 1976 Chevrolet Impala
- 1971 Chevrolet Caprice
- 1972 Chevrolet Caprice
- 1973 Chevrolet Caprice
- 1974 Chevrolet Caprice
- 1975 Chevrolet Caprice
- 1976 Chevrolet Caprice
Frequently Asked Questions
Why do TRZ drop spindles require a specific version of this kit?
TRZ drop spindles use unique tie-rod adjuster lengths that significantly improve toe settings and bump-steer control. This kit includes the correct TRZ-specific adjusters.
Is fabrication required for installation?
Yes. This system requires cutting, welding, and chassis modifications. TRZ strongly recommends installation by a professional chassis shop.
Why Buy from Beefcake Racing?
Beefcake Racing is an authorized TRZ dealer offering fast shipping, proven tech support, and genuine components for high-performance B-Body builds. For assistance selecting the correct rack conversion kit, contact sales@beefcakeracing.com or call 1-855-827-7223.
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