The stock screw that holds the inner-diff gear in place is too small to hold the upgraded replacement (on 144001). However not sure if wltoys intended this as a fix but you can use the existing screw that holds the hub pins in place and swap the screws over, hope this helps some people.

The stock screw that holds the inner-diff gear in place is too small to hold the upgraded replacement (on 144001). However not sure if wltoys intended this as a fix but you can use the existing screw that holds the hub pins in place and swap the screws over, hope this helps some people.

The stock screw that holds the inner-diff gear in place is too small to hold the upgraded replacement (on 144001). However not sure if wltoys intended this as a fix but you can use the existing screw that holds the hub pins in place and swap the screws over, hope this helps some people.

The product received is different than the pictures AND different from the description. The material appears less shiny, and the teeth are way smaller (not as tall of teeth) as the picture. The tooth count on the big differential gears is different and the count of teeth on the drive shaft output gears are different as well. The largest diff gear also don't have the positioning pegs like the one in the pictures. The spider (asteroid) gears are also much smaller on the original parts. I haven't tried installing the components yet, but I imagine they will not work properly.

The product received is different than the pictures AND different from the description. The material appears less shiny, and the teeth are way smaller (not as tall of teeth) as the picture. The tooth count on the big differential gears is different and the count of teeth on the drive shaft output gears are different as well. The largest diff gear also don't have the positioning pegs like the one in the pictures. The spider (asteroid) gears are also much smaller on the original parts. I haven't tried installing the components yet, but I imagine they will not work properly.

The product received is different than the pictures AND different from the description. The material appears less shiny, and the teeth are way smaller (not as tall of teeth) as the picture. The tooth count on the big differential gears is different and the count of teeth on the drive shaft output gears are different as well. The largest diff gear also don't have the positioning pegs like the one in the pictures. The spider (asteroid) gears are also much smaller on the original parts. I haven't tried installing the components yet, but I imagine they will not work properly.

Great upgrade for the 12428.

Great upgrade for the 12428.

Great upgrade for the 12428.

It made me to understand the working of car differential. this product help me to complete the car differential project.

It made me to understand the working of car differential. this product help me to complete the car differential project.

It made me to understand the working of car differential. this product help me to complete the car differential project.

mükemmel kalite

mükemmel kalite

mükemmel kalite

Nice quality and nice packaging

Nice quality and nice packaging

Nice quality and nice packaging

arriving quickly and in good conditions.

arriving quickly and in good conditions.

arriving quickly and in good conditions.

todo excelente salvo que había encargado dos Kits y llego un bien y otro solo para un diferencial

todo excelente salvo que había encargado dos Kits y llego un bien y otro solo para un diferencial

todo excelente salvo que había encargado dos Kits y llego un bien y otro solo para un diferencial

качество вроде хорошее, но тест всё покажет

качество вроде хорошее, но тест всё покажет

качество вроде хорошее, но тест всё покажет

Los diferenciales no se ajustan al tamaño del vehículo están más pequeños eso es un gran problema ya que se quizo instalar en un wltoys a979 pero no funcionó de forma correcta review escrita por un Mexicano. Saludos!

Los diferenciales no se ajustan al tamaño del vehículo están más pequeños eso es un gran problema ya que se quizo instalar en un wltoys a979 pero no funcionó de forma correcta review escrita por un Mexicano. Saludos!

Los diferenciales no se ajustan al tamaño del vehículo están más pequeños eso es un gran problema ya que se quizo instalar en un wltoys a979 pero no funcionó de forma correcta review escrita por un Mexicano. Saludos!