Datsun 510/1600 & 610/180B Adjustable Rear Crossmember (V4.1) – R200 Compatible

Estimated Lead Time: 4-8 weeks (Made to order)

⚠️ Note: In some cases, we can offer a non-exchange option where we supply a complete crossmember outright, without needing your original unit. Availability for this option depends on current stock and cores — please contact us to confirm before ordering.

The Datsport Adjustable Rear Crossmember (Version 4.1) is a precision-engineered replacement for the factory rear crossmember in Datsun 510/1600 and 610/180B models. Designed for enthusiasts who demand better suspension alignment, this unit allows fine adjustment of both camber and toe without the guesswork, welding, or slotting that traditional methods require.

Whether you're lowering your Datsun for improved handling or fitting an upgraded differential like the R200, this crossmember offers a bolt-in solution with serious performance benefits. Built to suit street, circuit, and rally applications alike, it ensures your rear suspension geometry is as dialled as your build deserves.

⚙️ Key Features

• Designed for R200 differential fitment – also suits R160 & R180
• Available for 510/1600 and 610/180B (exchange or non-exchange)
• Custom billet 4140 steel adjustment bolts
• Precision jig-welded 5mm laser-cut brackets for exact alignment
• Caged reinforced nuts and M10 stainless steel socket head adjusters
• Allows accurate toe and camber control using simple tools
• Enlarged exhaust cutout for up to 3" system
• Rubber mountings removed – ready for urethane or replacement mounts
• Delivered sandblasted and powdercoated

📦 What's Included

• Fully assembled adjustable rear crossmember (powdercoated)
• Custom alignment brackets & adjusting hardware pre-installed
• Billet toe & camber adjusters with lock nuts

Exchange Info: If selecting the "exchange" option, please send your rear crossmember to us at 11 Somerset Circuit, Lonsdale, SA 5160. Once received, we will assess and contact you regarding the next steps. In some cases, we may use your original unit directly if it meets or exceeds our base condition standards.

💡 Recommended Upgrades

• R31 Rear Brake Conversion – In-House Assembled
  Fully pre-assembled rear disc brake conversion using modified trailing arms, rebuilt calipers, custom cables and rotors – ready to bolt into your 510/1600.
• R31 Rear Brake Conversion – DIY Kit
  Complete do-it-yourself kit for modifying your own rear arms with R31 brakes – includes calipers, rotors, cables, brackets, and more.
• Hardline Fuel Line Kit
  Pre-bent chassis-specific fuel lines with billet bulkhead fittings and soft lines – available in -6AN and -8AN, suited for EFI and carb setups.
• Transmission Shifter Cover Kit
  Cleanly finish your transmission tunnel after a gearbox swap. CNC-cut and shaped to suit common conversions in the 510/1600.
• Brake Booster & 7/8" Master Cylinder Kit
  Compact, pre-assembled brake booster and master kit – ideal for engine-swapped 510s with tight clearances and improved braking response.

🔧 The Story Behind This Product

When we first started developing adjustable crossmembers for Datsuns, our initial designs used cam-type adjusters. While they worked, they were clunky — difficult for alignment shops to set, and not particularly durable. Arms had to be forced into position, risking wear on both the bushings and the adjusters themselves.

Version 2 was our first big improvement — more robust and much easier to align. But it was Version 3 where we really changed the game. With the help of a purpose-built jig, we aligned the pivot pins perfectly, reducing bushing distortion and ensuring smoother arm movement. That design marked a real breakthrough in both geometry and serviceability.

Now, Version 4.1 is ready — and it’s the best one yet. With custom billet adjusters, stronger bracket geometry, and R200 diff compatibility, this crossmember is built for serious street and motorsport use. It solves the common rear-end alignment issues caused by lowering a 510 or 610, while offering repeatable fine-tuning with standard hand tools.

No welding. No guessing. No compromises. Built by enthusiasts, for enthusiasts — from years of trial, fabrication, and on-track feedback.