The 5 Best 4 Speed gearboxes (2023 reviews)

If you often find yourself confused about good gearbox, injora 4 speed gearbox should be your first option for buying. It is a very basic 1/10 scale crawler gear box. It comes with what seams to be a motor pinion gear made of metal (no set screw) and it has 17 teeth. The internal gears are all plastic and have little relation to stock axial gears other than size. The quality on the components is pretty low and the slipper pads are VERY low quality aluminum that strips easily. It has 4 loose screws for mounting to the vehicle. The motor mount plate is metal, the included pinion gear is as well, everything else is plastic. It is cheaper and easier to find than a used axial replacement transmission.

Why We Like This:

Good brand reputation
New and hot release

Best Runner up: Benedict Harry Speed Transmission

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The benedict harry speed transmission's material feels more premium than its price would suggest. It is perfect for a wraith as an upgrade, internal steel gears, works perfectly with a 2300kv on 3s, running 13/56 gearing. Due to the design of the gear engagement, there is a noticeable increase in gear play when rolling the chassis back and forth. It works well but must stop to shift or will break the low high gear rod and the only high gear to replace low high rod.

The inner diameter of the bearing race tolerances are ( give or take) 1mm off and causing the slop. There is a shifter on the case.

Why We Like This:

Holds up to a big brushless motor on 2, 3 and 4s
Good investment for long term

Best With Reverse: Rchub 4 Speed Gearbox

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The rchub 4 speed gearbox should be able to handle its purpose and duties with ease. It is made for rc rock crawlers mainly, in that when crawling up a steep hill the rear wheels can be free. The servo controlled lever has three positions. It has an axial clone, so the axial gears should fit.

This gearbox does not change speed, only1 speed. It is determined by the thickness of the steering gear arm.

Why We Like This:

A multi channel controller has 3 positions
Really has changes the turning and crawling of the truch
One of the new comers and featured product

Best For any WPL Series RC: Dilwe 4 Speed Gearbox

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The dilwe 4 speed gearbox is satisfactory and appropriate and fits well with your regular usage. Dilwe guards your childlike innocence and makes your life full of fun and yearning. The Precision CNC machining aluminum alloy motor heatsink has better heat dissipation effect. It is suitable for a wpl 1633 remote control car. The High quality aluminum alloy motor mount base is solid and durable. It is perfect for the mn99s or any wpl series rc.

Why We Like This:

Anodizing treatment for heatsink and mount base, exquisite in appearance
Delivers what they promise

Best durability: Benedict Harry 4 Speed Gearbox

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For a low asking price, benedict harry 4 speed gearbox has managed to overwhelm their customers by packing as many features as they could. The Spur gear is a different pitch than most Axial spur gears on SCX. All you need to do is add a servo to 'change gear' The build quality of this is just first classis both inside and out. It will fit between the rails of the chassis and match up to the bolt holes of the original transmission. This has lead to the entire drive line to be locked up.

The extra weight of the Billet Alumnium body adds that all important weight down low. Adding this will give your truck a two speed transmision at the flick of a transmitter switch. It’s a tight fit and the front driveshaft needs to be shorter than stock driveshaft. It is for best results you will need to remove the shifters from the wraith interior.

Why We Like This:

Smooth and rather quiet out of the box
Good investment for long term