# Need 4 stroke help...yz426/yz450f **URL:** \ **Category:** Shift518 Automotive\ **Created:** [January 9, 2011, 6:57pm UTC](https://forums.speedlife.net/t/need-4-stroke-help-yz426-yz450f/256348 "2011-01-09T18:57:23Z")\ **Posts on this page:** 1\ **Showing post:** 5
**Author:** ![SSmokinn\_SS](https://avatars.discourse-cdn.com/v4/letter/s/ec9cab/32.png) [@SSmokinn\_SS](https://forums.speedlife.net/u/SSmokinn_SS)\ **Post date:** [January 9, 2011, 7:43pm UTC](https://forums.speedlife.net/t/need-4-stroke-help-yz426-yz450f/256348/5 "2011-01-09T19:43:32Z")
> [@Hello From Clearwater](https://forums.speedlife.net/t/hello-from-clearwater/38599/24): > > ya may need to do the whole lower , like i said the cases are diff between yrs . just get the hardened shit i did and i never had a prob again . ill try and remember where i got my shit thru . it wasnt exp and had it all quick Im not in a hurry to get the parts really. I still need to order swingarm bearings and a new swingarm bolt. When I went to take the motor out, my swingarm bearings where shot and fused to the bolt, so I had to cut the bolt out. Sucks thats its a $50 bolt lol --- _[View the full topic](https://forums.speedlife.net/t/need-4-stroke-help-yz426-yz450f/256348)._