Compatible parts for FS5W71 rebuild - Mitsu?

[NigelStu]

Just put my new race car build ('77 w/5spd) on track the other weekend, supposedly "good" drivetrain happened to have issues with 5th gear, reverse, shift lever, leaking, etc.  After a bunch of research on here and the various other incorrect vehicle assembly issues I've discovered from the PO, I opted to do a full rebuild.

 

Upon inspecting the 5th gear synchro pack (black fiber style), I found these parts inside that synchro pack.  The Thrust blocks both have a symbol that looks a whole lot like the MItsubishi symbol.

 

Is that symbol normal for this part and it isn't actually Mitsu?   Is this a compatible small part swap?  Or was this a part that looked about right that someone threw in there, which may have some impact on the lack of 5th gear?

 

This leads me to another question that I have not been able to find searching here or google - are there any cross-car/company part exchanges that work?  Are those pieces even available anymore if I want to put Nissan OE stuff back in?

 

[NewZed]

Looks like it might be 34 or 35 here - http://www.carpartsmanual.com/datsuns30/DatsunZIndex/PowerTrain/TransmissionGears/5Speed/tabid/1708/Default.aspx

 

And, surprisingly, your local Nissan dealer may be able to get the parts.  Or Courtesy.

 

http://www.courtesyparts.com/block-anch-p-343450.html

 

http://www.courtesyparts.com/block-thru-p-343449.html

 

Or you can accept it as useful practice for future endeavors and cut your losses (edit - just meaning that the early 5 speeds may not be the best rebuild candidates, compared to the ZX boxes with better ratios).  The fiber rings apparently are NLA.  And the rebuild parts can be suspect, if they're not Nissan.

 

Read this thread. It starts slow but there's a ton of good stuff in there - http://forums.hybridz.org/topic/110792-high-rpm-shifting-dynamics/

Edited April 30, 2015 by NewZed

[NigelStu]

Thanks for the link to the part numbers - very helpful.  Its good to know those are still available.

 

I'd still like to know if Mitsu / Nissan used the exact same parts for those pieces (I kow Mitsu used a version of the trans in their old truck).   The parts look OK for wear, just want to confirm if they are correct dimensions so I don't have to buy new to put this back together.

 

 

While I'd like to switch over to a newer ZX trans (actually have a BW 5 spd already), race rules dictate stock.  If fiber ring is NLA anywhere, then changing to a superseded synchro part/assembly is something I can do.  Ratios need to stay stock.