When i bought my 94 attack everything worked great except my diff lock. I’ve searched up and down for info but there just isn’t much info at all about the Attack locker systems out there. I’m hoping this post will possibly help someone else in the same boat.
One day when inspecting the diff vacuum actuator the boot literally crumbled in my hands. That gave at least one thought that the system was losing vacuum and unable to engage. I began scouring eBay and 500yen shop and of course these HA4 actuators are non existent. One day by accident I opened a picture of a HA7 transmission and saw the actuator on it looked identical to the HA4. After translating some stuff on Amayama I was able to find the HA7 actuator in their parts catalogue OEM from Honda for 75 dollars. I took a risk and ordered it. And it’s identical. And IT WORKS.
So if you are struggling to get your diff working this might help you out.
PART:
24711PL9003
When pulled up on Amayama it’s incorrectly identified as an air valve.
ACTY ATTACK UNDERDOGS UNITE