I have a 99 zrt800 that I am thinking of making into a long track. Would this be a tough thing to do. I'm thinking it wouldn't be that bad, but you guys would know. What is the way to go, skid extensions or just find a longer skid etc. etc. I'm still in the debating stage and looking for suggestions. Thanks

I lenthened a 96 ZRT6 to 136"
Great mod to the sled
I found 136" rails and swapped out the 121's.

I lenthened a 96 ZRT6 to 136"
Great mod to the sled
I found 136" rails and swapped out the 121's.
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what about the tunnel extention ?

Tracks USA.com has a Special Right Know.
136" Rail Extensions, a Camoplast 136x15x1.25 Ripsaw and a Tunnel Extension to Match. $459.00 Good Deal.
Tunnel Extension from cat is $175.00, Rails Used are $100.-$150.00, A 136x15x1.25 Ripsaw is $399.00
If you can, Find a Good Used 136" Skid, Buy it, Swap out waht you nedd of your Old One{121} and Sell your 121".
Good Luck. ZR

Tracks USA.com has a Special Right Know.
136" Rail Extensions, a Camoplast 136x15x1.25 Ripsaw and a Tunnel Extension to Match. $459.00 Good Deal.
Tunnel Extension from cat is $175.00, Rails Used are $100.-$150.00, A 136x15x1.25 Ripsaw is $399.00
If you can, Find a Good Used 136" Skid, Buy it, Swap out waht you nedd of your Old One{121} and Sell your 121".
Good Luck. ZR
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i called tracks usa ...the lady told me they dont have an extention for my 96 zrt also talked to my dealer but they said they couldnt get one for my 96.do you have any part #s for me from anywhere lol ? i just pulled my skid last night and am using rail extentions , the new track is on my shop floor (picked up from ebay $309 delivered 1.25 x 136 ripsaw ).i`m still not sure about using my rear heat exchanger ,i may go with a skidoo plate style so i wont need to run a cover over the factory one. ive got all summer so we will see how it goes.Mark

i called tracks usa ...the lady told me they dont have an extention for my 96 zrt also talked to my dealer but they said they couldnt get one for my 96.do you have any part #s for me from anywhere lol ? i just pulled my skid last night and am using rail extentions , the new track is on my shop floor (picked up from ebay $309 delivered 1.25 x 136 ripsaw ).i`m still not sure about using my rear heat exchanger ,i may go with a skidoo plate style so i wont need to run a cover over the factory one. ive got all summer so we will see how it goes.Mark
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I put a tracksusa 144" kit on my '97 ZRT 800 earlier this fall. Whole thing costs me about 650 bucks and that included the extended rails, 8 tooth drivers and track. It's AWESOME. I crafted some alumuminum for the rail extension.

I used the original 121 skid.

Here is a pic that shows the sled near completion.

http://blakeoffroad.com/Snowmobiles/_ZRT%20Longtrack/IMG_3687.jpg

what do you guys do about cooling????

I am changing track over the summer also

still debating on going 121 or 136

I need new rails anyway(ovalled hole)

Funny, I have a friend that bought a 136 ZRT and it eventually got shortened to 121. He said it was amazing, with the shorter track it actually turned.
A ZR like Freezerburnt's makes a nice 136"sled, but the ZRT's will never be good boondockers. They'll be great at going straight up a hill, but for day to day riding you're better off leaving them at 121".

Freeze, are you replacing the track regardless? If so a 136" would be cool on that sled. FOr cooling you can usually just move the exchanger back. With the older sleds it was never an issue because they had the coolers running the length of the tunnel instead of at the back.
FUnny, I've loved my 144, but next year I'll be back on a 121. If it doesn't cut it I'll extend it to 136", but 95% of the time in Ontario, if a 121 can't make a few extra inches won't help.

Funny, I have a friend that bought a 136 ZRT and it eventually got shortened to 121. He said it was amazing, with the shorter track it actually turned.
A ZR like Freezerburnt's makes a nice 136"sled, but the ZRT's will never be good boondockers. They'll be great at going straight up a hill, but for day to day riding you're better off leaving them at 121".


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lol,if i listend to what everyone says my 96 zrt cant do ...it would prolly never leave the trailer :cool:

I had one of those and stretched it out to a 136 2",and was the best thing ever for that machine,just extend the cooling hoses and why dont you just weld up the oval hole and redrill it out and use rail extensions,cat always has lots of cooling capacity so you wont have a problem there at all