Can someone tell me the difference between the vtec and si axles? I have a 4th gen Si chassis with a vtec swap and need to know which axle to get on the drivers side because it is wiped out. I am only replacing the axle, not the intermediate shaft. Are they different lengths?

 

h23 and h22 axles are the same used my old one to the h22

 

will the h23 axel work with the h22A4 block too?

 

Yeah, block doesn't matter, its the tranny. They're all the same for 4th gens. On the 5ths one side works from a 4th gen, 1 side does not.