To start, I should mention that I stretched my '06 Nytro to a 136" a few seasons ago, and last winter I installed the Hygear Linkage Removal Kit. Most of you know the sled by now.
Here's what I found this fall after 5000 miles when pulling it out of storage:
cracked rails in the same locations as fellow TY'er garserio
broken cross tube on the rear pivot arm in the same location as others
I had thought about simply buying new rails and then make improvments. Then I thought about replacing the entire skid with a used Phazer skid and make improvements from there. Both choices would cost almost the same, and yeild about the same results.
Then I thought about getting some billet rails from Ulmer Racing ... but turns out his vendor what having problems with getting him a supply.
So I ended up going in a completely different direction that I has planned. We here at Muffin Works decided to make our own rails. We mapped out the stock 121" rails on the CMM, then added the extension to make a 1-piece billet rail. And since we were starting from scratch, it was easy to strengthen up the weak areas (where I got cracks).
And regarding the broken tube ... well, we fixed that too. We cut out the stock tube using our EDM machine, and replaced it with a piece of chromoly steel tube that has a thicker wall, all tig-welded in place.
We then sent out all the pivot arms for an extra-strong anti-chip powder coat, and had the rails hard-anodized. Hard-anodizing is much harder than normal anodizing. You can't even scratch it with a metal file!
The center and rear shocks were sent out to Hygear for a rebuild and revalve.
So here you have it! A 136" Pro-Active skid, with Hygear linkage removal kit, Hygear revalve, stronger 1-piece billet rails by Muffin Works, and stronger rear pivot arm by Muffin Works. Ready for another season of hard riding!!!
Pics can also be found on our website under the Custom Work page.