What gearing with a 44t spur?

[jordan...]

@Shaun: thanks for the offer, i really appreciate it , but i think i'll have to pass because i would have to cut the Gmaxx frame rails quite alot to get it to fit. Thanks again though

@Lutach: Thanks for the list, really helpful, i might go for that 42t spur for some better clearence, didn't know they made anything that small. Can't wait to see your truck running on that 1527. I was actually thinking of getting a LMT 22xx series, but i think they work out close to $400-450 US Any reason you would fit the largest pinion? I would imagine since the rpms would be lower the engine would run cooler?

@Neil: Thats a good point about the diff gearing, never considered that. I'll have a play around with BrianG's calc and see what i can come up with.

thanks for all your help guys
jordan