Engine Torque Arm Add-on for ProX2 600 PLEASE HELP - HCS Snowmobile Forums

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Old 08-22-2017, 09:46 PM   #1 (permalink)
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Default Engine Torque Arm Add-on for ProX2 600 PLEASE HELP

Hey guys I know this is an old beaten topic but I'm trying to find an engine torque arm for my Pro x2 600 and as I'm sure you all know they are difficult to come by especially now that we're in 2017 . Now I see wahl bros racing has one and it's the only one I can find aftermarket still listed for a small block edge chassis. Problem is it doesn't specify as to if it will work on a pro x. It's listed on the site as a WMS Torque Arm Part # 11-284 for $76.95 and says exactly "02-05 ALL small block Polaris 600 XC, RMK". Is this the part I need?? Link posted below. Any feedback is greatly appreciated and no I cannot find a used torque arm off a Pro XR 440 those are quite rare to come by these days.

Torque Arms :: Chassis Components :: Wahl Bros. Racing
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Last edited by prox600rider; 08-22-2017 at 09:55 PM.
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Old 08-23-2017, 07:27 AM   #2 (permalink)
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Originally Posted by prox600rider View Post
Hey guys I know this is an old beaten topic but I'm trying to find an engine torque arm for my Pro x2 600 and as I'm sure you all know they are difficult to come by especially now that we're in 2017 . Now I see wahl bros racing has one and it's the only one I can find aftermarket still listed for a small block edge chassis. Problem is it doesn't specify as to if it will work on a pro x. It's listed on the site as a WMS Torque Arm Part # 11-284 for $76.95 and says exactly "02-05 ALL small block Polaris 600 XC, RMK". Is this the part I need?? Link posted below. Any feedback is greatly appreciated and no I cannot find a used torque arm off a Pro XR 440 those are quite rare to come by these days.

Torque Arms :: Chassis Components :: Wahl Bros. Racing
that one should work on a pro-x chassis. a hole gets drilled through the bulkhead in the shock area. under the top shock mount. may have to remove l.h. shock to install? bolt to the motor first. leave some adjustment both ways. then using the heim joint as a template mark, center punch, then drill the hole. i don't think it would be a issue.
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Old 08-23-2017, 08:24 AM   #3 (permalink)
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Those torque arms are great for drag racing but beware if trail riding aggressively. I've had and seen others with stress cracks around the shock towers when one is used and these were on 440-500 sleds. You really need to beef up that area before on is installed.
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Old 08-29-2017, 05:10 AM   #4 (permalink)
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My IQR had one of those, it tore the mouning bracket clean off after half a season. Not running that anymore
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Old 08-29-2017, 08:36 AM   #5 (permalink)
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My IQR had one of those, it tore the mouning bracket clean off after half a season. Not running that anymore
Had them on my indy trail sleds, doesn't take a whole lot of aggressive riding before the arm will tear the shock tower around the bulkhead. You really need to tear the belly pan plastic away and gusset/weld those areas well. Once thats done i was able to get the bulkhead to stay together.
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Old 08-30-2017, 07:42 AM   #6 (permalink)
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Had them on my indy trail sleds, doesn't take a whole lot of aggressive riding before the arm will tear the shock tower around the bulkhead. You really need to tear the belly pan plastic away and gusset/weld those areas well. Once thats done i was able to get the bulkhead to stay together.
Yeah, I consider myself lucky that the bracket broke before the actual shock tower. That would be a pain to straighten out and weld up on the IQR..
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Old 09-07-2017, 12:39 PM   #7 (permalink)
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Never had a any problems on my proxr with a 910 other than broken rod ends, chrome moly fixed that. Not saying it wont happen, just saying it hasnt yet and i wont stop using them.
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Old 09-07-2017, 01:49 PM   #8 (permalink)
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Never had a any problems on my proxr with a 910 other than broken rod ends, chrome moly fixed that. Not saying it wont happen, just saying it hasnt yet and i wont stop using them.
A properly installed torque arm is very necessary for best clutch alignment and performance in my experience and normally doesn't cause any chassis or engine damage.

Torque arm must be snug after perfect engine/clutch alignment is done and not allow any twisting or rearward movement.

If bolts come loose, or any twist is allowed, the damage does happen. I used them on ALL my sleds with zero issues. No torque arm used yet on the 2015 AXYS, but its coming.
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Old 09-07-2017, 02:01 PM   #9 (permalink)
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Phil is right on.If the torque arm causes damage its because somthing else is wrong.Torque arms are a necessity on high hp engines to keep the clutches in alignment.

Did you try calling/emailing slp?Sometimes they have nos stuff around thats not listed anymore.
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Old 09-07-2017, 02:10 PM   #10 (permalink)
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Like i said, their fine for drag racing when you need perfect clutch alignment for best performance. I never had the issue with short wo lunches and runs. Its aggressive riding/pounding big moguls and drifts that causes the torque arm to beat up the sled at its mounting points. I think chassis flex has a lot to do with that issue. O ice the chassis was beef up i didn't have problems anymore.
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