TRZ Motorsports GM Manual Rack and Pinion Conversion Kit - Factory Spindles (1971 - 1976 Chevy Impala / Caprice - B-Body) - 321-3
Manual Rack & Pinion Conversion for Factory Spindles (71 - 76 Impala & Caprice)
The TRZ Motorsports GM Manual Rack and Pinion Conversion Kit is engineered to upgrade steering performance on 1971 - 1976 Chevy Impala and Caprice B-Body models using factory or factory-style aftermarket spindles. By replacing the massive OEM steering assembly with a custom-narrowed Pinto-style manual rack, this kit delivers sharper steering response, reduced weight, and improved front-end stability - ideal for drag racing, Pro Street, or performance cruising builds.
This system is not bolt-in. Cutting, welding, and fabrication are required. TRZ strongly recommends installation by a qualified chassis shop to ensure proper rack placement, correct steering geometry, and long-term reliability.
Included in the kit are an adjustable bump-steer and tie-rod adjuster system, a rack clamp and mount plate, a 3/4" chrome-moly steering shaft with shaft 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 supported GM platforms.
Spindle Notes
Select the correct spindle type before ordering:
- Factory / Non-TRZ Drop Spindles: This includes Belltech, Summit, and most aftermarket drop spindles that maintain OE-style geometry.
- TRZ Drop Spindles: Require a different-length tie-rod adjuster for correct toe alignment and optimal bump-steer correction. This kit (321-3) is designed specifically for factory-style spindles.
Performance Features
- Manual rack-and-pinion conversion for 1971 - 1976 Impala & Caprice
- Pinto-style manual rack narrowed for B-Body chassis
- Adjustable bump-steer and tie-rod adjuster kit included
- Rack clamp and mount plate for secure installation
- 3/4" chrome-moly steering shaft with support brace
- (3) chrome-moly U-joints: 9/16" - 26 spline to 3/4" + (2) 3/4" smooth
- Billet aluminum steering arms included where applicable
- Requires cutting, welding, and fabrication - professional installation recommended
Quick Specs
- Applications: 1971 - 1976 Chevy Impala & Caprice (B-Body)
- Spindles: Factory & factory-style aftermarket
- Steering Type: Pinto-style manual rack
- Materials: Chrome-moly shaft & U-joints; billet aluminum arms
- Installation: Cutting & welding required
- Part Number: 321-3
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
Is this a bolt-in rack conversion?
No. It requires cutting, welding, and fabrication. TRZ recommends having this installed by a professional chassis shop.
Will this kit work with TRZ drop spindles?
No. TRZ drop spindles require a different tie-rod adjuster length and use a separate TRZ-specific version of the kit. This version is for factory-style spindles only.
Why Buy from Beefcake Racing?
Beefcake Racing is an authorized TRZ Motorsports dealer, offering fast shipping, expert guidance, and guaranteed authentic components for your B-Body build. Reach our team at sales@beefcakeracing.com or call 1-855-827-7223 with any questions.
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