FMS FCX18 FCX24 RC Cars Upgrade Parts for FCX24 Smasher, FCX24 Power Wagon, K5 Blazer, Lemur, Unimog 421& FCX18 Land Cruiser 80, K10: Metal Transmission Gear

When you're installing this kit, pay close attention to the orientation of the shift fork, the shaft, and the c clip that retains the fork. The fork is not symmetrical and should be installed the same way it came out.I've had zero issues, very happy with the upgrade.For lubrication, I used white synthetic grease with ptfe. These gears paired with the purple Injora motor are extremely quiet. For the most part, all you hear is the tires moving on the ground.My power wagon has brass outer portal covers, front OD gears, weighted wheels, and 64mm tires, running 3s batteries exclusively. The gears have withstood months of abuse with no issues so far.

This was an upgrade to replace the plastic gears in the transmission with all metal, including the shift fork. Which I understand other kits do not have. Other that having a very hard time getting the circlip off for the shift fork replacement, all went well and it works perfectly.

I got these mostly for the metal shift fork and metal shift hub for my FMS FCX24 K5 Blazer that I upgraded with a Furitek brushless motor.. I mixed with Treal gears because I heard many reports that the FMS gears are not ground to exact specs and can bind. Because I used the FMS metal shift parts, I had to use the 2 FMS gears that mated to the shift hub because they had a unique 4 spline mating. The Treal gears had 3 splines and would not mate to the 4 spline FMS metal hub. That’s why the Treal gear set doesn’t come with the metal shift fork and hub, as they are designed to mate with the stock plastic unit. Which doesn’t make sense, as that plastic hub can fail just as easily as any plastic part, especially under the strain of a more powerful motor. I did use the Treal gears for the rest, and all was fine. If I used all the FMS gears, I might have been fine…I don’t know for sure.

Got it all installed (correctly) but the shift fork replacement was a little loose and jiggly in my case it did not fit snug onto the shaft provided tried the o.g. shaft and same wiggle...so that it would not shift into high gear or would grind/slip out under heavy acceleration. bought another set from what the hobby shop i shop at reccomended and it works like a charm...that one has brass shift fork insert and 3 prong instead of.this 4 prong...machining tolerance defect/problem? and no.shim kit with the gear set...but if it was made right to spec tolerances it would have fit like a glove like the other brand i got...all snuggly...even watched 3 online install videos to see if i got something wrong....not one of the install videos addressed a bad/wobbly shift fork. maybe i got the only bad one?

These are the perfect replacement for the fragile plastic transmission. It took less than 1 month for the factory gears to strip out in low gear and must be the first thing to do before you order any other upgrades.They’re a little noisy but I rest assured knowing I can get into some tight spots without the worry of damaging the transmission. Remember to buy a small tube of white lithium grease to assemble

If you're going to go brushless and or add weight to your truck, you need these. They fit right and have been a solid performers in 2 of my trucks. The only reason I didn't give them a 5 is because the finish could be better.

Installed these in my fcx 18 trans to replace the stock plastic gears. They're a little tough to install, but they work great and they'll last a while.

After playing for awhile car Would'n't use three shift function turns out shift gears are too big other than that have had no other issues