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brute force force pinion and bevel swap

This is a discussion on brute force force pinion and bevel swap within the How - To forums, part of the Kawsaki Teryx Forum General Teryx category; I gotta replace my bevel and pinion gear and had heard guys talking about changing to brute force gears to gain top end. Has anyone ...


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Old 07-31-2011, 09:36 AM
 
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brute force force pinion and bevel swap

I gotta replace my bevel and pinion gear and had heard guys talking about changing to brute force gears to gain top end. Has anyone done this? How much more trouble is it than replacing with stock Teryx gears, shims nuts etc. Also what kinda of gains did you get from the swap.
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  #2 (permalink)  
Old 07-31-2011, 11:16 AM
 
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we have done it quite a bit. It will be the same as changing out the stock set depending on what motor, clutch and wheel/tire combo set up you have will determine the gains you can expect
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Old 07-31-2011, 11:30 AM
 
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Stock motor, 26 inch tires mostly trail riding.

Epi red and green springs with weights also

Is this the set I need


Last edited by sportsman09; 07-31-2011 at 08:38 PM. Reason: Automerged Doublepost
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Old 08-01-2011, 11:36 AM
 
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Found a set including shaft super cheap! Looking forward to seeing the difference!
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Old 08-01-2011, 01:38 PM
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I am also going to do the swap, talked to vforce john and he said it would raise your gear ratio by about 10% and depending on individual setup(motor, clutch, tires, wieght and riding surface) You could gain a max of 15mph under the best conditions.
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Old 08-01-2011, 07:56 PM
 
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My gears should be here Thursday, going to replace front and rear seals also. When are u doing yours?
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Old 08-02-2011, 11:40 AM
 
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I been told 10 and just now 3. I will post actual speed gain
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Old 08-22-2011, 10:08 AM
 
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i have to replace my gears as well due to chipped teeth on both gears. my question is and im sorry if someone else has already asked this same question what all needs to be changed out in order to swap the teryx gears over to brute gears. is it just the 2 gears. ( the one of the shaft and the one just inside the motor or do any other gears need to be changed out? i got a bum deal on a teryx and now i have to fix it.
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Old 08-22-2011, 12:43 PM
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Yes about 10 mph is correct when testing at the same rpm and clutch setup. These gears have to be shimmed for proper backlash and tooth contact pattern. Recommend getting a factory service manual or having a PRO do it. We have new gears and shims in stock if anyone needs them.
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Old 08-22-2011, 01:09 PM
 
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I got the tool needed if someone wants to do it, 75 bucks buy it use it pass it on.
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Old 08-22-2011, 01:50 PM
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Quote:
Originally Posted by s2k1 View Post
Yes about 10 mph is correct when testing at the same rpm and clutch setup. These gears have to be shimmed for proper backlash and tooth contact pattern. Recommend getting a factory service manual or having a PRO do it. We have new gears and shims in stock if anyone needs them.
Will you notice much or any loss of low end torque when using these taller gears? If so, can this loss be regained by incresed CC's?
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Old 08-22-2011, 01:57 PM
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Originally Posted by Desertdog615 View Post
Will you notice much or any loss of low end torque when using these taller gears? If so, can this loss be regained by incresed CC's?
Good question! Yes, gear ratio is taller everywhere and at all times! More CCs should be more torque to counteract the change in gear ratio.
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Old 08-22-2011, 02:15 PM
 
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quick question how do you check for proper shims and proper backlash when switching to the brute gears
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Old 08-22-2011, 02:49 PM
 
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If any one has as hard a time as I had finding socket to remove gear I posted one under classifieds
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Old 08-29-2011, 03:31 PM
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Do you guys have the part numbers for this swap?
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Old 08-29-2011, 03:54 PM
 
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Alot of the brute guys who run big tires and stay in mud prefer Teryx gears which in return gives them a gear reduction. So the gears are easy to find from any where from 40-100 bucks
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Old 08-30-2011, 05:46 AM
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Originally Posted by sportsman09 View Post
Alot of the brute guys who run big tires and stay in mud prefer Teryx gears which in return gives them a gear reduction. So the gears are easy to find from any where from 40-100 bucks
What year of gears fit?

See some cheap on Ebay just not sure if they will work. Let me know I would like to do this swap. My engine is on my bench currently so now is the time to do it. Thanks for the help.
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Last edited by jlbierig450r; 08-30-2011 at 06:37 AM. Reason: Automerged Doublepost
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  #18 (permalink)  
Old 08-30-2011, 06:53 AM
 
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My gears are from a 06 brute, think all years of 750 are the same
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Old 08-30-2011, 07:33 AM
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Originally Posted by Long Travel Ind. View Post
we have done it quite a bit. It will be the same as changing out the stock set depending on what motor, clutch and wheel/tire combo set up you have will determine the gains you can expect
so... what should i expect from this swap with my 840? clutching is vfj stage 3. i would have you guys to the gear install and clutch tune... i ride mostly in the dunes...would the low end grunt that i gained with the 840 be gone now?
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Old 08-30-2011, 11:44 AM
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Originally Posted by sportsman09 View Post
My gears are from a 06 brute, think all years of 750 are the same
Thanks I will keep an eye out for them.

Bought one on Ebay. We will see how this 840 likes the taller gearing. I am ready to put this power plant back in the car. Been down to long.
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Last edited by jlbierig450r; 08-30-2011 at 12:27 PM. Reason: Automerged Doublepost
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  #21 (permalink)  
Old 08-30-2011, 12:37 PM
 
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Its going to roll on, u will be surprised!
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Old 09-05-2011, 11:10 PM
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Is this a worthwhile mod on a machine running 28's in the mud or is it going to kill the bottom end. I have a FST 840 stage II cams 27.5 growlers and I ride trail and mud. I am looking to be able to stretch out low gear a bit more but can't afford to lose alot on the bottom as I am already having my share of belt issues in the mud. Can some of you guys who have done this give a pro's and con's breakdown for us guys looking at doing the swap. Thanks
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  #23 (permalink)  
Old 09-06-2011, 04:26 AM
 
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It will stretch out low gear you would be able to cruise with out have motor pinned. Id definitely recommend vfj clutch mod if you do the gear swap since your still gettting in the mud.

I have retired from the mud scene, to much damage and money spent on repairs. I have learned a good dependable trail bike is much more fun.
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Old 10-26-2011, 07:39 AM
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Went to put it in last night and they are different. Dang it. Didn't even think about switching the shafts until now. I feel like an idiot. Well I guess I know what I get to do tonight.
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Last edited by jlbierig450r; 10-26-2011 at 08:32 AM. Reason: Automerged Doublepost
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