Comet transaxle gearcase Will it hold up ???

[nutz4sand]

Bugs suggestion of a Pilot box is a good one. If you cannot find a Pilot box but hit on a 350 odessey box for a good deal that might be worth looking into. The Pilots use CV's but the gearbox has female splines on it and not male splines like yours in the first pic.

K-fab once modded the pilot CVs to accept larger CV flanges. You could also mod them to take a U-joint flange if need be

The Odessey if I remember right has the male splines out of the tranny and had U joints that clamped around those splined shafts. They might be close toy you spline size and count but I would be surprised if they happened to match. I guess its possible as when those machines of yours were being made Odesseys were popular and they may have mimiced it and even used some of those parts?? Be lucky for you if they did and you could snag one.

Pilot trannies are a good bit tougher than the 350 Odessey and the Pilot has a built in slipper clutch to absorb shocks in case the driver fails to let off the gas when need be.

Finding a good used RPM box would cure all your power handling issues. Connecting to your shafts would be the worst of that and thats gonna be done reguardless. The extra money you spend on it would be offset in the fact that your not out on a big weekend and trash one you paid half the RPM price for. Then have to buy another. It would take it and be more fun with the confidence its gonna hold up better. Bill

[PilotHawK]

The spines on the FL350 tranny output shafts are the same as the FL350 rear hub, and any others that match that spine pattern such as, FL250 rear hubs, 400ex rear hubs, 300ex rear hubs, and I think trx250r rear hubs.

I'm not sure that the FL350 gearbox is up to the task of handling much more than 40-50 HP though as I believe that this is the main reason RPM started building FNR boxes. The FL350 gearboxes are fairly inexpensive, but once they go you can only sell them for scrap.

RPM is the way to go if you are looking for the simplest solution to your problem. You can switch to the RPM now, or after the comet GB grenades. I'd hate to be out in the middle of the desert though when it does.

[Bugpac]

Originally Posted by nutz4sand

Bugs suggestion of a Pilot box is a good one. If you cannot find a Pilot box but hit on a 350 odessey box for a good deal that might be worth looking into. The Pilots use CV's but the gearbox has female splines on it and not male splines like yours in the first pic.

K-fab once modded the pilot CVs to accept larger CV flanges. You could also mod them to take a U-joint flange if need be

The Odessey if I remember right has the male splines out of the tranny and had U joints that clamped around those splined shafts. They might be close toy you spline size and count but I would be surprised if they happened to match. I guess its possible as when those machines of yours were being made Odesseys were popular and they may have mimiced it and even used some of those parts?? Be lucky for you if they did and you could snag one.

Pilot trannies are a good bit tougher than the 350 Odessey and the Pilot has a built in slipper clutch to absorb shocks in case the driver fails to let off the gas when need be.

Finding a good used RPM box would cure all your power handling issues. Connecting to your shafts would be the worst of that and thats gonna be done reguardless. The extra money you spend on it would be offset in the fact that your not out on a big weekend and trash one you paid half the RPM price for. Then have to buy another. It would take it and be more fun with the confidence its gonna hold up better. Bill

For the record, wasn't my suggestion, that credit goes to randy at odysalvage, I was just elaborating on it is all....

[jwcarguy]

The design now, does resemble the 85' FL350 Odyssey, (we own one of those also), but the axles shafts, u-joints and yokes are alot bigger! Closer to a 1310 series automotive u-joint. The male splines on the Comet box are at least 1" dia. coarse spline. The yokes are Spicer brand stamped #C2-4-2109.
I definetely don't want to bow up the Comet box out in the middle of the dunes at Dumont. That would really suck. We went out Aug. 9 to Dumont dunes for some night drags,, and a buddy blew his left rear axle, in the center of a deep bowl. I had to drive the axle back to Vegas that night to be repaired. And your right, it would happen on a big weekend or something! Murphy's law!!
I'll have to keep my eyes out for a RPM or Pilot box. What is the going rate on these FNR boxes ? Do have to put one of my kids to work also??
Thanks again !!

[LiveWire]

I am pretty sure Danno said he has some of the output shafts left that fit those yokes.

I think Atvnut had a Pilot tranny. He was also getting some new input shafts made that would allow for the Arctic Cat clutch. There was a delay in getting those made, but increasing the number wanted may speed up the machinist. Maybe nut would even put it in.

[jwcarguy]

Here are a bunch of pictures showing the rear yokes, axles, hubs, gearcase and one of the rear a arms. The spline is 1" diameter with 15 (male) splines on the axle shaft itself.

[jwcarguy]

Here are a couple more, plus a couple of the Triple EEE Desert Star II That would be great if I could modify the Pilot case or get a used RPM box. I would rather not redo the arms @ the wheels, only modify the gerabox outputs and axles ? Thanks again guys, I really appreciate the input!!

[LiveWire]

Hmm, looks familiar. Are they B35 wheel bearings? 4 on 100 bolt pattern?

[jwcarguy]

Livewire, The bearing numbers are : SKF Y06 309726DA Spain
the wheel bolt pattern is 4 / 4 ( polaris or golf cart) the fronts are the same bolt pattern.
Thanks, Jeff

[LiveWire]

100mm is very close to 4". Those hubs very similar to those originally on my 2000 Formula Cross.