# Mike's Sol **URL:** \ **Category:** Builds\ **Created:** [December 13, 2007, 3:55pm UTC](https://forums.speedlife.net/t/mikes-sol/235240 "2007-12-13T15:55:54Z")\ **Posts on this page:** 1\ **Showing post:** 1034
**Author:** ![Boxersix](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/boxersix/32/6327_2.png) [@Boxersix](https://forums.speedlife.net/u/Boxersix)\ **Post date:** [July 11, 2011, 8:25pm UTC](https://forums.speedlife.net/t/mikes-sol/235240/1034 "2011-07-11T20:25:50Z")
> [@FS: 1985 Camaro Berlinetta, SOLD!!!!!!!!!!!!!!!!!!!!!](https://forums.speedlife.net/t/fs-1985-camaro-berlinetta-sold/43789/7): > > Adam, the ones I ended up narrowing in on were ID of 10mm OD of only 18mm. Most of the FSAE bell cranks i’ve seen appear to have much thicker bearings in them. Was I looking at the wrong thing or does it not matter? Needle bearings require the use of hardened inner/outer races to ride in, which typically are not included with a standard needle bearing. If you use a caged needle bearing, the outer race or case is part of the bearing and is pressed in as a unit. You’d then either run it on a hardened pivot/shaft, or have a hardened sleeve pressed over the pivot/shaft. These inner/outer races can make a bearing appear bigger than it actually is. The Nedellas’ incorporate a thrust bearing into the roller setup to take up the thrust load associated with bell cranks not mounted in perfect plane with the pushrod. If the setup you’re working with has the rockers in plane, the needle thrusts are not required but still make a huge difference in suspension movement under sever load. Cheaper setups use shims and/or machined surfaces to take up rocker slack which is fine for awhile, but they wear and gain slop which leads to sever bind and choppy suspension. --- _[View the full topic](https://forums.speedlife.net/t/mikes-sol/235240)._