QD2 Install "heads up"

[kylant]

Just an FYI when installing a QD2 gear and belt on a '20 and earlier sled.

Look at the video and the backing plate fin. What I am bringing to attention is NOT the gear or the shaft, but rather the gear hitting the backing plate
I did not know this, but glad I ran across it when I was installing mine.
Figured I would post it here because some may not peruse the Axys forum anymore

QD 2 Install

Has anyone installed the QD2 on there 800 (lower gear and new belt)? I understand you need to file a little to install the lower gear, is that correct? I'm curious about that the filing process, if necessary.

www.snowest.com

 

[live2beel]

I put one on my 20 and didn't have to do anything other than taking off 1/16 off the back mounting plate.

 

[3-UP]

The lower gear does not need to be filed it's the same shaft part #s.

 

[damx]

My 19 needed nothing also, the qd2 gear also fits the shaft alot better then my stock gear and the pro ride gears that I had before.

 

[kylant]

The lower gear does not need to be filed it's the same shaft part #s.

My 19 needed nothing also, the qd2 gear also fits the shaft alot better then my stock gear and the pro ride gears that I had before.

it is not the gear, or the shaft.

the gear hits the fin protrusion on the backing plate. it is clearly shown in the video above.
on my sled, the gear hit that fin before it bottomed out where it should ride on the shaft.

you guys should double check

 

[kylant]

just checked. that backer piece does indeed have a different part number for '21

'20: 1333116
'21: 1334431

 

[Teth-Air]

Any chance the new drive axle has it sitting outboard just slightly more?

 

[damx]

I just checked my qd2 on my 19. And the back of bottom gear clears the backing plate and fins, not by much 1/8". Got 6 rides on it, so far so good.

 

[LPIdaho]

Cleared my 18 no problem. Didn't have to do anything.

 

[Golanda]

The QD2 gear is a little larger and can interferes with the fins in the back plate. Videos of the 2021 with the QD2 shows this area has been relieved by Polaris. Apparently some folks do not have this interference however at least three of us installing QD2s have. I removed maybe a 1/4 to 1/8 inch depth of material over a one inch length to eliminate the gear rubbing.

I'd recommend installing the new lower gear without the belt and check this area with a playing card or something thin to assure you do not have interference then check it again after installing the gear. I would also look for metal filing in this area after running the gear the first time.

After I relieved this area I used a card to verify I didn't have the interference anymore.

A better picture of the 2021 QD2 backing plate (front lower) might be helpful. Please post a pic if you have a 2021 with factory installed QD2.

The relief in the new 2021 sleds is visible in this video at 58 sec https://m.youtube.com/watch?v=sVOLvCUOvRc
and here at 4:58

 

[kylant]

The QD2 gear is a little larger and can interferes with the fins in the back plate. Videos of the 2021 with the QD2 shows this area has been relieved by Polaris. Apparently some folks do not have this interference however at least three of us installing QD2s have. I removed maybe a 1/4 to 1/8 inch depth of material over a one inch length to eliminate the gear rubbing.

I'd recommend installing the new lower gear without the belt and check this area with a playing card or something thin to assure you do not have interference then check it again after installing the gear. I would also look for metal filing in this area after running the gear the first time.

After I relieved this area I used a card to verify I didn't have the interference anymore.

A better picture of the 2021 QD2 backing plate (front lower) might be helpful. Please post a pic if you have a 2021 with factory installed QD2.

The relief in the new 2021 sleds is visible in this video at 58 sec https://m.youtube.com/watch?v=sVOLvCUOvRc
and here at 4:48

i wonder why some need and others do not?? mine needed it

i did however, install my steel driveshaft from my sks. i wonder if that has anything to do with it

 

[Golanda]

I don't think it has anything to do with the driveshaft, mine is stock. It looks like all three of us that had to trim down the backing plate installed the QD2 on a 2020 sled. That might or might not be key.

 

[alland]

my 19 needed filing thanks to original post guy

 

[bobback]

I just checked my qd2 on my 19. And the back of bottom gear clears the backing plate and fins, not by much 1/8". Got 6 rides on it, so far so good.

After 6 rides what do you think?!

 

[damx]

I'm liking the qd2 ratio alot, more snap when you need to get doing and clutch heat has also dropped.

 

[davesilb]

I would be interested to know if the people who have had to file to get the clearance noticed where the belt ran on the bottom gear when done. If the belt runs out from the inside of the lower gear would it not maybe be better to put a thin shim on the lower gear between it and the bearing. I would rather the belt ran as close to the inside of the lower gear as possible without rubing the lower gear flange. Thanks for any imput

 

[JB850]

If anyone is running e start with the qd2, you will have to grind the battery bracket down a little bit as I noticed it rubbed my belt a bit.

 

[Golanda]

My belt is not running out on mine after filing. It is even with the outer edge of the gear.

 

[bobback]

If anyone is running e start with the qd2, you will have to grind the battery bracket down a little bit as I noticed it rubbed my belt a bit.

Thanks for the heads up - I have estart and checked the clearence, no grinding needed for battery bracket. I have 20' 155 track if that matters.

Have you ran the qd2 yet? If so how do you like it?

 

[Golanda]

I finally had a change to run the QD2 today. It is very snappy and pulls hard off the bottom, love it. No complaints what so ever.