Can I use both parts together?

Yes. They are different parts on the same truck, so a bent turnbuckle and a broken rear arm can both be replaced at once.

Which one lasts longer?

The steel turnbuckle usually outlasts the arms because it bends instead of cracking. The GPM aluminum arms outlast stock plastic arms but can bend on hard hits.

Are the GPM arms a direct fit on the Mini Kraton 3S?

GPM lists them as a direct replacement for ARA-2675 on the 1/16 Mini Kraton 3S (ARA2508S and ARA2508) with no modification.

Do aluminum arms make the truck handle better?

They hold suspension geometry more firmly under load, but the gain is small. Most buyers switch for durability, not handling.

Is the turnbuckle adjustable?

Yes. It is a threaded turnbuckle, so you can set camber and toe after installing it.

Which is worth the extra money?

The GPM arms cost more but replace a part that breaks often. The turnbuckle is a cheap spare to keep on hand.

Arrma Turnbuckle Steel (Mini Kraton) M3x48mm ARA-3281 vs GPM Rear Lower Suspension Arm 7075-T6 Aluminum for ARRMA 1/16 Mini Kraton 3S - Upgrade Replacement A-Arm

These are not competing parts. The Arrma ARA-3281 is a single steel M3x48mm turnbuckle for the Mini Kraton, and the GPM part is a pair of 7075-T6 aluminum rear lower suspension arms for the Mini Kraton 3S. Buy the turnbuckle if you stripped or bent a tie rod; buy the GPM arms if you keep breaking the stock plastic A-arms. No prices were given for either part, so compare store prices on each before ordering.

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