Help with stiff shifting tranny

[firefly]

I've read a post on this topic a while ago but no one seems to know the answer. My shifter is very stiff and it's hard to shift especially from 1->2 and 2->3. The weird thing is it's only like this when the engine is fully warmed up. And instead of a smooth, "click-click" shift action all I get is a rubbery feeling when I put the shifter into the next gear. But it never grinds.

I have the following mods done so far:

TWM short shifter
KartBoy bushing
Redline MT90 fluid
Everything torqued to spec when installing

I've ordered a set of bronzeoil bushings from SRD performance and wonder if those will help at all.

 

[Captain KRM P5]

the stiff shifting from first to second is very common on these cars. i was told that this something to do with weaker synchros. the last 626 had the same transmission, with different synchros i am told, and did not have this problem.

 

[firefly]

Hmm...but that doesn't explain why it only acts up when everything is warmed up. I mean...on a cold winter morning the shifter feels great after 5 mins of driving. Very low effort yet short throw...almost feels like it snaps itself into the next gear. But keep driving for another 30 mins and it get all rubbery and stiff.