Savage flux 9t bevel gear

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Does anybody know what diff/bevel gear sets if any would replace the bulletproof diff bevel gear, the 9t gear. I can’t find hpi parts and I’m hoping by some miracle I can use a diff (high hopes) from another manufacturer.
I took my flux out to entertain a kid (6yr old) a few weeks ago. After bombing around the yard a while, I stopped in front of a 2 inch step in the path and proceeded to do a back flip. I was amazed as it jumped 3 feet in the air and did a full back flip and landed on the wheels. But that’s where the fun stopped. I destroyed the teeth on the 9t bevel gear in the rear.
I discovered the problem yesterday when I took it all apart and have been scouring the web for a replacement part to no avail. I have the older type gears that came in the savage X but if the power does this to bulletproof ones I really don’t want to waste my time with weaker parts. I hope it’s not time to shelf the flux.
Any help or advice would be greatly appreciated.
 
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I too need to know where to get another 9 tooth gear or if there is another brand of ring and pinions that fit !
 
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i Found one hidden in a box at my LHS! It may be the last one in existence. I now don’t want to drive the flux, Incase something else breaks. (Which I’m really good at doing) it may be time to shelf this monster.
 

olds97_lss

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According to rc4me.us, they will get more in no later than Sept 24th. I sent them an inquiry to find out. They responded 30 minutes later.
 

olds97_lss

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I thought about trying CEN genesis/reeper diffs... not sure if they fit or not though, but they run big teeth like the BP diffs. Guessing they are probably at the very least a different tooth count, so you would have to do both the front and rear at the same time, an $80 experiment.
 

X

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Savage 6768

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Just putting it out there but can the diffs from a 1/8 buggy/ truggy platform be used as replacements ? I would hate :argh: to see the savage be a distant memory as it is such a seriously cool MT
 

olds97_lss

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Just putting it out there but can the diffs from a 1/8 buggy/ truggy platform be used as replacements ? I would hate :argh: to see the savage be a distant memory as it is such a seriously cool MT
They might, I never tried. But there are very few that have the big teeth like the BP ring/pinion. The big CEN trucks are the only ones I've seen with massive ring/pinion teeth. The smaller teeth just don't hold up as well, even if they are machined vs sintered.
 
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I have a vorza buggy. I will give it a try. I did order the hot racing ring and pinion as I couldnt find any bullet proof diffs anywhere. Are the Hot Racing gears as strong as the bullet proofs ?
 

olds97_lss

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I never tried them. They could be harder on the bearings. From what I've read, helical cut gears are harder on bearings because they try forcing the pinion into the it's bearing. They are also more sensitive to proper meshing, so make sure you dry fit them and get the shims in so the mesh is nice and smooth before you fill the diff with oil and finish installing it.

I'm guessing you will need to do both the front and rear diffs at the same time, since they differ in tooth count from the BP's, which also differ in ratio to the standard gears.
 

olds97_lss

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Would a diff gear ratio of 4.3 be a huge difference from the stock 3.22?
Different enough to have to do both the front and rear, yes. I think it increases top speed, so you may have to gear it down a tooth on the bell/pinion if your running the 43/13 ring/pinion now. I think that was the original tooth count... can't recall.
 

Northernnightmare

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Not sure how this question comes up so often, but its been answer a few times buy me and a few others in the past

You can run almost any true 1/8 diff so long as you use the savage outputs.

The good. other diffs are usually cheaper, easy to find, and most have the bigger 8mm bearings

Negatives not all them have the same gear ratio so you need both F/R, and you need to look over the shim stacks

Installing the outputs is been easy on the units i try'd but I'm sure not all are so easy

The Hot-Racing heli cut r/p is very strong also, and is a direct replacement
 

olds97_lss

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Not sure how this question comes up so often, but its been answer a few times buy me and a few others in the past
You can run almost any true 1/8 diff so long as you use the savage outputs.
The good. other diffs are usually cheaper, easy to find, and most have the bigger 8mm bearings
Negatives not all them have the same gear ratio so you need both F/R, and you need to look over the shim stacks
Installing the outputs is been easy on the units i try'd but I'm sure not all are so easy
The Hot-Racing heli cut r/p is very strong also, and is a direct replacement
There aren't many that are as tough as the BP gears. Without buying a bunch of cups, I'm not sure what cups fit the BP gears or if the output shafts are the same diameter. I wouldn't mind replacing my cups with something like the LST2+ had with the steel inserts, steel output collar so I could use 2 8x16 bearings. I'm just not sure if they fit the ring gear, or if the output hole is the same ID or what internal gears can be used.
 
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