TRZ Motorsports Billet Faceplate 4130 9" Housing Blank - Sheet Metal Back Brace - 650-BSB
4130 Billet 9-Inch Housing Blank with Sheet Metal Back Brace
The TRZ Motorsports Billet Faceplate 4130 9? Housing Blank with Sheet Metal Back Brace (Part #650-BSB) is engineered for builders who need a lightweight yet extremely strong 9-inch rear-end foundation. This competition-grade housing incorporates a formed 4130 sheet metal back brace, providing enhanced rigidity and resistance to housing flex under high-power loads.
The housing uses a pocketed billet faceplate for weight reduction while maintaining a minimum 7/16? faceplate thickness. Blind 3rd member hardware holes, along with integrated vent and drain ports, offer a clean and service-friendly layout. TRZ includes billet axle tube caps that locate 3.5? axle tubes internally for precise alignment, plus a 3-piece chromoly shell featuring a centered fill cap opening.
An anodized high-grip fill cap with pre-welded bung, internal housing gussets, ARP 3rd member studs, nuts, and washers, and both drain and vent fittings are all included. This configuration is ideal for serious drag racing builds requiring maximum strength without unnecessary weight.
Important: Designed for 3.5? axle tubes and measures 50? tube-end to tube-end with a centered pinion. This housing must be sealed with RTV only - not a gasket. Units are typically built to order with an estimated 1 - 2 week lead time, and shipments require a signature upon delivery.
Performance Features
- 4130 chromoly construction with sheet metal back brace
- Pocketed billet faceplate for reduced weight
- 7/16" minimum faceplate thickness
- Blind hardware holes for the 3rd member
- Integrated vent and drain ports
- 3-piece chromoly housing shell with centered fill cap opening
- Billet axle tube caps ensure precise tube alignment
- Includes anodized high-grip fill cap with welded bung
- Includes internal gussets, ARP studs, nuts, and washers
- Includes drain plug and vent
- Designed for RTV sealant only
Quick Specs
- Material: 4130 chromoly
- Back Brace Style: Sheet metal
- Axle Tube Size: 3.5"
- Total Width: 50" (tube-end to tube-end)
- Pinion: Centered
- Faceplate Thickness: 7/16" min.
- Shell: 3-piece chromoly
- Includes: Tube caps, fill cap, gussets, ARP hardware, vent, drain
- Sealant Requirement: RTV only
- Part Number: 650-BSB
- Lead Time: Typically 1 - 2 weeks
Frequently Asked Questions
How does the sheet metal back brace compare to the tubular version?
The sheet metal brace offers excellent rigidity with slightly less weight than the tubular version. Builders choose based on clearance, welding preference, and reinforcement style.
Can this housing use a standard gasket?
No. TRZ specifies RTV sealant only for proper sealing and fitment.
Why Buy from Beefcake Racing?
Beefcake Racing provides genuine TRZ Motorsports drivetrain components with fast shipping and true gearhead tech support. For help selecting the correct 9-inch housing option or back brace style, email sales@beefcakeracing.com or call 1-855-827-7223.
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