Originally Posted by
aarcobra
I'm not 100% familiar with all of tammy's mix and match of parts, so please clarify. Did not the F103 use a very different diff arrangement where the thrust bearing assembly is mounted against the outer face of the wheel and actually made you partially disassemble the diff to remove the rear diff side wheel?
There are two diff styles Tamiya make, the old 'F103' style with the thrust bearing assembly inside the wheel, and the new 'F104' style with the thrust bearing replaced by putting the thrust load through the standard bearing mounted inside the hub, with the end cap holding the wheel on. The left side non diff end is identical between the two types.
The two types of diff aren't F103 and F104 chassis specific though, the F103 diff is used in all the standard F104 and F104W chassis that come with scale bodies, such as the F60, MP24 and the vintage cars. The F104 style is only used in Tamiyas race spec pro chassis.