[vtecbob99]

Will a final drive gear, or ring gear of a 92-95 si trany fit my 90 dx trany?
Does the drive gear on the output shaft have the same number of teeth?
I looked up the gearing and they are almost the same, but the final drive.
I have both trany's and to me this would cheaper than buying a hydro-cable kit. I also plan on installing a obx lsd diff. Any knowledge whould help.
Thanks

 

[transzex]

you would need a 4.25 ring gear (any 88-2000) will work, but must use a 88-91 4.25 countershaft.

 

[Eyal 951]

I have a 4.25 ring gear and counter shaft available if anyone needs one. I;m not sure if you can just swap the ring gear with out the countershaft change.

 

[vtecbob99]

I'll just tear them apart and count the teeth on the countershaft and I'll let you know what I find.

 

[bense]

I'll just tear them apart and count the teeth on the countershaft and I'll let you know what I find.

no need to do that, I (or transzex) can already tell you the tooth count of any d-series gear without even seeing it

 

[vtecbob99]

no need to do that, I (or transzex) can already tell you the tooth count of any d-series gear without even seeing it

ok, so tell me
How many on teeth on both gears of a 4.250 final drive and
how many on a 3.888 final drive?

 

[bense]

68/16 = 4.25
70/18 = 3.888

 

[vtecbob99]

Thank you!
So if I the 4.25 meshes with the counter shaft of my dx I get 4.375, right?
70/16= 4.375
Wouldn't this be better?

 

[Eyal 951]

I seriously doubt they will 'mesh'. Honda uses different angles and size of teeth as well. just out of curiosity, I tried shoving a 4.25 countershaft into the tranny with a 4.4375 ring gear in there, and it wouldn't even go in. Also, the 4.4375 and 4.25 countershafts are both 16 teeth. Its just different angles that cause it.

 

[transzex]

very good grasshopper!

 

[vtecbob99]

I see.........
I did my math backwards anyway, if you canged just the ring gear it would be
68/18=3.777
so it wouldn't be better at all.
Thanks again, I just have to find whats cheaper a final drive set or a convertion
kit for the cable to hydro.

 

[transzex]

thats easy to answer, no one makes a conversion kit

 

[vtecbob99]

Innovative Mounts makes this one.
I'll just use my 92 si trany and install the lsd in it.http://www.passwordjdm.com/product.asp?numRecordPosition=4&P_ID=1667&strPageHistory=cat&strKeywords=&SearchFor=&PT_ID=469

 

[cvic90]

that's just the hydro-cable actuator, not the mounts for the trans.

 

[bense]

Thank you!
So if I the 4.25 meshes with the counter shaft of my dx I get 4.375, right?
70/16= 4.375
Wouldn't this be better?

I have test fit this with a 69 tooth dx ring gear of 4.058 to yield a 4.3125. They seem to mesh and fit, but I am not about to try it. 4.375 is 2.9% shorter than 4.25

You guys are welcome to try it, I don't reccomend it, nor do I think that it will be worth it. I am hoping that the 4.53 mfactory final drives will go on sale sometime, maybe you guys can haggle with him

 

[vtecbob99]

that's just the hydro-cable actuator, not the mounts for the trans.

Man, I completely forgot about the mounts! So then I would need a b series to ef mount kit, just for the trany mounts. Or I can make my own? hmmm.

Were can I look for a cheap final drive for my cable trany? how much is yours Eyal 951 and is it for the cable trany?

 

[cvic90]

I'm not sure on the mounts, I was going to do the same thing. Then I traded my brother my Dohc ZC Hydro LSD trans for his JRSC I've been borrowing. I'm sure you have to use the rear T bracket for the trans you're putting in. I just don't know if the mounts will line up in trans correctly. the cars I've seen with hydro trans have all been B-series with complete mount sets, not just one or two aftermarket and a factory. others have been "custom" homemade mounts. It only costs money to try it.