A855 - 5 Speed

A Modern 4, 5 or 6 speed manual has synchro sliders that have splines cut differently in 4 places around the sliders
3 splines at every 90* have a taper into the middle which is really quite pronounced in the center spline of the 3 tapered splines in each position

these coincide with the synchro hub keys and the aim is to draw the slider/hub into as central sensible running position as possible when under load and that actively keeps the transmission in gear.

common in transmissions made in Europe and Japan from the 70s onwards

now common in anything that grew out of Borg Warners "World Class" program on the T5 i.e Everything tremec did since 1986
but it is not a feature of 50s/60s US designs

I do wonder if this is what is missing on this transmission.



I think this fella, who runs 5 speeds .com, Paul Cangialosi, would have the issue sussed out in no time, can rebuild an A833 standing on his head seems to be most comfortable man-handling any manual trans around his bench
check him out of you tube to get a feel for the guy... i'd have him fix my trans.
i once purchased some shims and a support plate off him...that's all

5Speeds Transmission Home Page

maybe owners should club together and get him to investigate
he is a business like kinda guy, seems happy to go on record and say this is crap or this is good, A confidence that obviously comes from years and years of experience.

Has no link to any manufacturer, is not beholden to any corporation, his reputation is his to make or break, so i guess he would supply an unbiased view and potentially quote to fix the issue.

Dave