[Finnster]

I thought about putting the motor right on top, and its an easier thing to design, but I decided to make it offset so that the CoG was a bit lower from dropping the motor a couple cm, and also to keep the motor on one side to save room for the steering servo and maybe radio mount on one side opposite of the motor.

Neu motors are 44mm(?) in diameter, so at worst it only leaves 30mm of extra space between the TVPs. Obviously you are going to loose the oem radio box if the motor goes fwd, so I had planned on using an FLM radio tray plate, and removing material that would interefere (or making my own.)

This plate does sit somewhat high, and it incorporates the uppermounts for the str servo rack. The lower and more offset you can get the motor, the more room it leaves for the plate. I think if you managed to get the motor level w/ the CD, the motor would fit under plate, as that is not possible, if I have to raise the motor some, then perhaps I would only have to trim away 25-30mm from the plate. That leaves quite a bit of room for a str servo, and even a radio box, or even esc, if you could tuck the servo underneath the plate. I attached a really crappy drawing illustrating what I mean.

If you plant the motor right above the CD, you loose almost all this space, the motor sits high, and/or you have to sit the CD well to the side and have drivelines at unhappy angles.

Lastly, I know you can get pretty big spurs, but, big spurs take up lots more of the limited space between the plates, and more importantly, the stick out far underneath the CD. The CD will already sit quite a bit higher than the F/R diff outputs, so the bigger the spur, the higher it needs to sit to not have the spur hanging it nuts out the bottom of the truck. Ideally a very small spur would be used so the CD could be mounted low and at more optimum angles for the drivelines, and make up the FDR by low gearing in the diffs, say 4.2s or whatever as in truggy diffs.

For may particular intent, I think I need a 15-17:1 FDR, which is next to impossible w. Cen 2.89s and a CD. At worst take it upto about stock ratios on the diffs, and use Mike's 50T spur on the slipperential w/ 10T pinion. Better yet would be 4.2 or so diffs, Mike's 46T and a 11T+ pinion.