Danti Optima 34 Battery Tray Hold-Down — Billet Aluminum Relocation Box for Red/Yellow/Blue Top Batteries

Danti's Universal Battery Tray Hold Down is a billet-aluminum relocation box and mounting kit built to securely fit Optima-style 34/34R/34/78 and D34 series batteries in cars and trucks.

Keep your performance or replacement battery stable and protected with a compact tray that uses heavy-duty 3/8" hardware and a precision-machined top plate. The kit includes a base, top plate, three all-thread hold-downs, sleeves and matching nuts so you can mount Red, Yellow or Blue top Optima-compatible batteries with minimal modification. The aluminum alloy construction resists corrosion while the iron hardware supplies extra clamping strength, making this a practical choice for engine bays, trunks, race cars and custom relocation projects.

Will this tray fit my Optima or similar battery?

Yes — the tray is sized for the common Optima small-form batteries and equivalent aftermarket units. It accepts most Red Top 34/34R/34/78, Yellow Top D34/D34/78, and Blue Top 34M/D34M battery sizes when used with the included thread sleeves.

• Compatible sizes: Red Top 34, 34R, 34/78; Yellow Top D34, D34/78; Blue Top 34M, D34M.
• Accepts batteries up to 10.5" long by 6.95" wide and 6.7" tall with supplied sleeves.
• Batteries taller than 7.4" can be used with longer 3/8"-16 all-thread (not included).

How does the kit secure the battery in place?

Clamping strength comes from the heavy-duty all-thread hardware and a billet top plate that ties into the base plate, creating a rigid hold-down system. Threaded sleeves position the hardware to match the battery footprint and distribute load across the base.

• Includes one base plate and one billet top plate for solid clamping.
• Three 3/8" all-thread rods plus six matching nuts for tight, even pressure.
• Thread sleeves prevent hardware from contacting the battery case and align rods.

What materials and finish should I expect?

The tray pairs a corrosion-resistant aluminum alloy base and top plate with iron fasteners for strength. The aluminum minimizes weight and resists rust, while the iron hardware provides durable clamp force; both materials are suitable for street, track and show use.

• High-grade aluminum alloy for the base and top plate — lightweight and rust-proof.
• Iron all-thread and nuts for robust mechanical strength.
• Designed for long-term use in engine bays, trunks or relocated mounting positions.

How easy is it to install the Danti relocation box?

Installation is straightforward for anyone familiar with battery mounting: place the base, center the battery, fit the sleeves and tighten the top plate using the included threaded rods and nuts. Some vehicles may require drilling or additional brackets if relocating away from factory mount points.

• Kit includes base plate, top plate, three all-thread rods, three sleeves and six nuts for a complete mount.
• No special tools beyond wrenches and basic hand tools for most installs.
• May require longer all-thread for taller batteries or custom relocation setups.

Who is this for? The Danti Universal Battery Tray Hold Down is made for mechanics, racers, custom car builders and DIY enthusiasts who need a reliable, compact mounting solution for Optima-style small-form batteries. It's a practical choice when relocating batteries to trunks, roll cages or custom trays, or when replacing worn plastic mounts with a stronger, corrosion-resistant aluminum assembly. If you want a durable, low-profile mount that fits popular Optima sizes and uses heavy-duty hardware, this kit delivers a straightforward, long-lasting solution.