F22A1 5th gear in H22 trans- Search wasn't very conclusive.

[Harriers Wake]

I know this question has been asked since Henry Ford bought his first CB7 but a search of the related threads seemed to all end up with someone saying "i'm gonna try this one day" and then trickle off into obscurity. Maybe I just fail at searching things. Has this happened? Did Henry Ford ever put the Accord 5th in his H22 trans like he wanted all those years? On a serious note, modifying the 5th to fit/buying a custom gearset seem to be the most mentioned solutions. Barring access to Henry Fords fortune it seems that buying custom is economically unfeasible for a 25 year old DD CB7. Is there anyone on here who has accomplished modification of the CB 5th? If so are the numbers (mpg/rpm etc.) posted anywhere? Is this just a pipe dream?

[Tishock]

Welcome to the forum

Tip, try the following in your favorite web browser. This way your browser will only search this site and look for the following search terms

site:cb7tuner.com 5th gears f22 h22

So far I found that all f22 and F23 5th ratios are direct replacements for the H23 trannys. The only exception is the F22 h2a5 CS, it needs a 2mm shim. But this is not the case for H22 trannys. So far all f22/f23 CS 5th gear must be machine down to fit H22 trannys, either 2mm or 4mm depending on which f22 tranny gears you go with.

H22 M2Y4
MS = Main Shaft
CS = Counter Shaft

M2Y4 MS 31.63 - CS 18.48

H2A5 MS 31.46 - CS 20.93 - Only f22 that is 2mm shorter than every other f22 out there

H2U5 MS 31.40 - CS 22.90 - This is the same for all other f22/f23

[Harriers Wake]

Excellent tip, thank you so much!

Thank you again for the information, it's always exciting to have some indication that something is a possibility and this particular something makes me even more excited for my eventual swap. I appreciate this site more and more as a resource but thats primarily due to positive experiences communicating with other enthusiasts.

On a related note, is there an H23 trans with LSD? I'm planning on an M2B4 but i'd settle for a 23 trans if I could just throw the CB 5th gear in.

[Raf99]

Can we just add Tishock's response to the FAQ somewhere. He really summed up a ton of work in a very short paragraph there. I am doing the F23 5th swap into a H22 T2T4. More complicated than just adding a shim but do-able.

[wagon-r]

So far I found that all f22 and F23 5th ratios are direct replacements for the H23 trannys. The only exception is the F22 h2a5 CS, it needs a 2mm shim. But this is not the case for H22 trannys. So far all f22/f23 CS 5th gear must be machine down to fit H22 trannys, either 2mm or 4mm depending on which f22 tranny gears you go with.

I'm not trying to question you, as you clearly know much more about this than I do. But I've always understood that the H23 and H22 transmissions were pretty much identical. For example, 4th and 5th gear ratios for the 1995 H23 and the 1997 H22 are identical and the Honda part number for the 5th mainshaft gear is also identical for the 1995 H23 and 1997 H22 (although the countershaft part numbers are different).