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I don't really get why you want to use this specific tranny guys: I've not heard much good of it and putting such a big spacer is gonna raise the motor a lot Mr.Ed is right, this tranny is garbage I have the same one on my xrt pro. It keeps slipping when i use with a 17-turn brushed motor. Only see...

I would like to replace the original tank with this slant tank seeing how it's really the only thing out there that fits. Will this tank give me problems with priming the os max cz engine? Im guessing it takes some sort of syringe to fill the tank?

The power clutch will work with the xrt?

Very nice. If the hatch back was a little longer it could pass as a 79' mustang

Does anyone know of an alternative to the MKII throttle linkage?

I put a thorp under drive kit for my optima and it worked great. I guess the question to ask is what cuased the gear to strip? That wear patern indictes that something was too loose (motor screws, bushings in the gars, the shaft that the gear sits on....). Well the guy I bought this car off of must...

Mr. ED wrote:
This one? That's rather bad
some-one spoke about a blackfoot 2 or boomerang spur, but I don't believe that will work

Yes that's the one. It does appear Thorpe has an aftermarket part.

After further inspection it is the center gear, it is stripped. Is there any alternative for center gears other than the orignal part?

I replaced it with flanged bearings but center gear keeps popping off, for a total of 3 flanged gears on the center gear axle :( :( :( I'm very confused: how do you get 3 flanged bearings inthere? Please put up a picture. The only thing that collar does is to prevent the standard bearings to slide ...

I think those are just 5x10mm wheel or gearbox bushings, not the same as the part you've circled in the first post...which is a much smaller 4 x 8mm white plastic cylinder. I think fireboy indeed sells it, but wants more than 3 bucks for it. Evidently he knows how uncommon they are... :roll: EDIT: ...

Coelacanth wrote:That's one of the parts that always holds up one of my Optima projects, it seems I can never find one when I need one.

here is the ultima one, I think he has optima ones too!!
http://www.ebay.com/itm/261009077278?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649#ht_500wt_1054

I replaced it with flanged bearings but center gear keeps popping off, for a total of 3 flanged gears on the center gear axle

Hello, I appear to be missing the center gear collar pictured below. Does anyone know of any substitutes to part UPR-2?

Thanks guys, got it with some channel locks and a flat head

Hello, any advice on how to take the pinion off where the hex screw is stripped?