D-series L3 Transmission Ring and Pinion Tooth Counts
 

So I have lurked here for years, but I finally have something to contribute as I build a CRX VX hybrid. I had the hardest time finding the CRX HF federal transmission ring and pinion gear tooth counts. I needed them so I could have a shop piece together a HF federal transmission for me. Here in California it's hard to come by and buying one used was as much as having one rebuilt from pieces by a pro. So here is the info for all the ring and pinion gear teeth counts for the L3 series manual transmissions for 88-91 hondas.

Ring / Pinion teeth numbers = Final Drive ratio
88-91 - HF 65 / 22 = 2.95 FD - Federal
88-91 - HF 65 / 20 = 3.25 FD - California
88 DX - 67 / 18 = 3.72 FD
89-91 - DX 70 / 18 = 3.88 FD
88-91 - Si 68 / 16 = 4.25 FD

Thanks for posting. Will the hf final drive bolt in a vx trans ?

nope!
 

I also thought about the same thing and asked the tyranny shop. They said that the final drive gears won't swap between these transmission, HF and VX, even though they are very similar.

Sad side story
I found a complete 88' CRX HF at a Pick and Pull yesterday, went home to get the tools I need to pull everything off. Then I came back today and the car was crushed already! What!!!!!!:( It was there for only 2 months while old junker have been sitting since April. What gives!!!!