Currie HD44 vs Stock VS4-10 Rear Axle: What Changes on the Trail

Quick answer

The Currie HD44 VS4-10 Rear Axle Black Anodized is the stronger, more precise choice for VS4-10 owners who want aluminum durability, one-piece bearing retainers, and double shear shock mounts. The stock plastic rear axle is lighter and cheaper, but flexes and wears faster under hard crawling. If you run rough terrain or high torque, the HD44 is worth the extra cost. If you are building a light trail truck on a budget, the stock axle still works.

If you are deciding whether to replace the stock rear axle on your Vanquish VS4-10, the real question is not which one is newer. It is what actually changes on the trail. The Currie HD44 VS4-10 Rear Axle Black Anodized is a fully licensed aluminum housing with one-piece bearing retainers and double shear shock mounts. The stock plastic rear axle is lighter and cheaper, but it flexes under load.

This comparison uses the supplied catalog facts to show where each option helps, where it costs you, and who should choose which. You will also see how related parts like the F10/H10 Rear Axle Third Member and AR44 Axle Gear Set - 30T/8T fit into the decision.

What changes when you swap to the Currie HD44

The biggest change is material and rigidity. The Currie HD44 is an aluminum axle fully licensed by Currie Enterprises. The stock VS4-10 rear axle is plastic. Aluminum resists flex and holds its shape when you load the rear end on a climb or a side hill. That means less wasted suspension motion and more predictable traction.

The HD44 also adds one-piece bearing retainers, aluminum axle end caps, upper link mounts built into the differential cover, and double shear shock mounts. These are not cosmetic. They reduce slop at the bearing, protect the axle ends, and give the shocks a stronger mounting point. On the trail, that shows up as a rear end that stays planted and needs fewer checks after a hard run.

• Check your shock mounting style: the HD44 uses double shear mounts, so confirm your current shocks and hardware work with that setup.
• The HD44 is compatible with factory VS4-10 links, which keeps the swap simpler.

Where the stock plastic rear axle still makes sense

The stock plastic rear axle is not a bad part. It is lighter, which can help acceleration and reduce overall weight on a small crawler. It is also the original equipment, so it fits without any thought and costs nothing extra if it is already on your truck. For a mild trail build or a first crawler, it does the job.

The trade-off is durability. Plastic flexes, and that flex can change your rear suspension geometry under load. It also wears faster at the bearing and shock mounts. If you run high-torque motors, heavy wheels, or rocky terrain often, the stock axle becomes a weak point. That is when the rear axle upgrade benefits of the HD44 start to outweigh the weight and cost savings.

• If you stay on light trails and keep your truck near stock power, the plastic axle is a reasonable budget choice.
• If you already see flex or worn bearing seats, replacing the axle is cheaper than repeatedly fixing the stock one.

Supporting parts that affect the comparison

An axle housing is only part of the rear end. The F10/H10 Rear Axle Third Member is a direct replacement for the rear plastic third member used in all F10 and H10 axles. It is compatible with both plastic and aluminum F10 and H10 axles and includes machined aluminum bearing retainers for added strength and rigidity of the ring and pinion. If you are upgrading the housing, this is a logical companion piece.

Inside the axle, the AR44 Axle Gear Set - 30T/8T is a fully machined hardened ring and pinion set. It is compatible with factory Axial AR44 axles as well as Vanquish Products Currie housings. One gear set is required per axle. If your stock gears are worn or you want a fresh ratio, this is the part to plan for. The HD44 housing does not include gears, so budget for them if you need them.

• The AR44 gear set includes grade 12.9 M2 hardware for attaching to the axle spool.
• The F10/H10 third member is machined in the USA from domestic aluminum.

Fit and installation notes

The Currie HD44 VS4-10 Rear Axle is designed for the VS4-10 and is compatible with factory VS4-10 links. It includes the rear housing, two bearing retainers, a Currie diff cover, two axle end caps, required hardware, and instructions. The catalog facts say it does not include everything, so check the product page for the full list before you start. You will likely reuse or replace internals depending on your build.

The F10/H10 third member is a direct replacement for the plastic third member in F10 and H10 axles. The AR44 gear set fits Currie housings and factory Axial AR44 axles. If you are mixing brands or older parts, verify compatibility before ordering. The HD44 uses double shear shock mounts, so your shock hardware needs to match. If you are unsure, the safest path is to keep the stock links and change one part at a time.

• Gather the instructions and required hardware before you disassemble the rear end.
• If you upgrade the housing, inspect the ring and pinion and third member at the same time.

Trade-offs to weigh

• Weight vs strength: The aluminum Currie HD44 is stronger and more rigid than the stock plastic axle, but it adds weight. On a small crawler, that weight can slightly reduce acceleration. Choose the HD44 if durability matters more than saving grams.
• Cost vs included parts: The HD44 is a complete housing with bearing retainers, end caps, diff cover, and hardware. The stock axle is already on your truck and costs nothing extra. The HD44 does not include gears or a third member. Budget for the F10/H10 third member and AR44 gear set if your current internals are worn or missing.
• Fit vs flexibility: The HD44 is compatible with factory VS4-10 links and uses double shear shock mounts. The stock plastic axle fits without changes but flexes under load. If you keep stock links, the HD44 is a straightforward swap. Check your shock hardware before installing.

Product facts

• Currie HD44 VS4-10 Rear Axle Black Anodized: Fully licensed by Currie Enterprises, aluminum construction, one-piece bearing retainers, aluminum axle end caps, upper link mounts built into the differential cover, double shear shock mounts, and compatible with factory VS4-10 links. These features reduce flex and slop at the rear end, giving you more predictable traction and fewer repairs on rough trails.
• F10/H10 Rear Axle Third Member: Direct replacement for the rear plastic third member used in all F10 and H10 axles, compatible with plastic and aluminum F10 and H10 axles, and includes machined aluminum bearing retainers for additional strength and rigidity of the ring and pinion. If you are upgrading the housing, this part strengthens the gear mount and helps the ring and pinion stay aligned under load.
• AR44 Axle Gear Set - 30T/8T: Fully machined hardened ring and pinion gear set, laser etched with the Vanquish logo and tooth count, includes grade 12.9 M2 hardware for attaching to the axle spool, one gear set required per axle, and compatible with factory Axial AR44 axles as well as Vanquish Products Currie housings. The HD44 housing does not include gears, so this is the part to add if you need a fresh or stronger ring and pinion for your Currie housing.

Who should choose which

Best for

• VS4-10 owners who run rocky trails, high-torque motors, or heavy wheels and want a stronger rear end
• Builders who want aluminum durability, double shear shock mounts, and a licensed Currie housing

Not for

• Budget builds that stay on light trails and do not need extra strength
• Drivers who want the lightest possible rear end and are willing to accept plastic flex

The Currie HD44 VS4-10 Rear Axle Black Anodized is the clear upgrade when you need strength and precision on the trail. The stock plastic axle remains a light, low-cost option for mild use. Match your choice to how you actually drive, and add the F10/H10 third member and AR44 gear set if your internals need refreshing.