I laid out the clearance problems in this post: phpBB/viewtopic.php?f=3&t=3376&start=41Datsun1973 wrote:Will, what clearance issues were you having with the 7.25" setup? With this all installed the HTOB to clutch clearance is .208 or right in the middle of the window of .170 to .230 that tilton recomends. Or are you speaking of radial clearance to some part of the 282 interfering with the larger 7.25" diameter? I know the clutch housing bolts come dang close (>.100") to the transmission bellhousing internal guts.
Titlon recomends using a 5/8" Master with their HTOB's and I have one of their 5.5:1 floor mounted pedal assemblies. All this comes out to a 34lb pedal load and 4" pedal travel. This is based on a release load of 750lbs and a release travel of .180" and free play of .200. However since the tilton HTOB's don't use return springs the .200 free play can be negated.
The bolts that hold the diaphragm spring to the pressure plate cover go through from the inside, have nuts on the outside and will contact the exterior of the output shaft inner bearing boss inside the bellhousing of the 282.
The thickness limit for the button ends up being something like .450, which is VERY thin for that sort of part.
The dual layshaft nature of the F23 means that the output shaft inner bearing boss does not protrude into the bellhousing as much. This improves clutch packaging with that transmission tremendously.