radex7

I am going to continue on with my tranny dilemma, not for long I hope. Can someone correct me if I am wrong here... I read that that the tranny from D16A1 (1 gen integra) doesn't fully bolt up to our D15B... and D16A6. If this is true, that stinking D15B7 door stopper in my garage can be used to determine if it is what I don't want it to be (integra and not the Si tranny). Right? Thanks

Furyof4

If you pop out an axle seal you can measure the inner bearing surface on the diff. 40mm=si 35mm=other

Ive never heard of this mentioned before but its a sure way to tell if its big bearing trans.

I have both in my basement that I can measure if people want pics.

HTautodc

post pics please

radex7

You know, one picture is worth a thousand words, I think it would be great if you could post them here, I'd really appreciate it. Could you explain the measurement of the bearing in more detail, please. I have a hard time visualizing it. Thanks

Furyof4

Ok I'll take pics tonight and post an explanation.

harmonator84

Some good info in this....

jlicrx

DX, LX and Si have the same axles and the same hubs - only the Civic STD hatch (originally equipped with 4-speed) and CRX HF have the smaller hubs

jlicrx

86-89 Integra transmissions that came with the D16A1 are easy to spot - they are not L3 transmissions, they are CG - they have 5th gear inside a separate bolt on sheet metal cover on the back - look like this:

Furyof4

Easy way to tell si trans from the rest.

Pop out an axle seal and measure like so:

Dx=35mm or 1.378"


Si=40mm or 1.575"

radex7

jlicrx, Furyof4, you guys rock. Thank you so much for your input. It is a SI after all...

eklum

bring back the dead cuz i dont understand something still
so if i have a stock dx sedan and im going to go put on a si tranny id have to replace the clutch with a si clutch?

jb2wheels

Depends on the year.
88 spline count is different from 89-91
88-89 clutch diameter is different from 90-91
If your DX is an 88, you need an 88 trans or you need to change the clutch plate to an 89 to work with the 89-91 trans.
If you DX is 89, you need an 89-91 trans or change the clutch plate to an 88 to work with an 88 trans.
If your DX is a 90 or 91, you need an 89-91 trans or change the clutch plate to an 86-89 Accord to work with the 88 Civic trans

I saw a great "which clutch do I need" flowchart online once that outlined this stuff but I did not bookmark it and can't find it now. Oh wait, here it is, in the FAQ stickied at the top of this forum...

FAQ: https://honda-tech.com/forums/honda-crx-ef-civic-1988-1991-3/88-91-crx-ef-civic-frequently-asked-questions-faqs-1508680/
clutch stickie: https://honda-tech.com/forums/honda-crx-ef-civic-1988-1991-3/stock-clutch-fitment-guide-2284956/

eklum

thanks!

Dark_Teg

Damn I got a complete D16A6 with 5 speed tranny I cant give away over here.

Eli2

What?

luggss

this thread is a lot of help, but i have one question on replacin a axle seal should u be able to push it in with good force with your thumbs? and how far should it be pushed in? flush with the outer edge? reason i ask is i just it yesterday and put the axle back in and it leaked bad ( not between the bearing and the case but the axle and the shaft) i cant pull the axle out buy hand but i think its not all the way in cause there is a bigger gap then the pass. side.
Any ideas?

chadr111

just want to say thanks for all this great info. especially Furyof4 for the axle seal pics.

Furyof4

Your welcome, Im glad it helped you out.

akshn1

so how can u tell the diff. between b-series trannys?

KING PIN

so how can you tell what flywheel you have, whats the difference between 88 and 89-91, how to identify between them

freeagent

how would you tell for a b series?

freeagent

aha beat me to it..

KING PIN

if you talking about the flywheel you count the holes that will tell you if its a b or d

freeagent

no like whether its a b series si or b series ls or whatever

KING PIN

got me there