installing lsd into b2k5 transmissiopn

Ok so Im getting geared up to run through this thing and install my quaife unit. Its been a few years since Ive really sat down everynight and read all the posts so Im not sure if this has come up anytime that I may have missed it. Is there anything that can be swapped gear wise to open up the legs on the JDM 5 speed. Rob said his gear ratio was really close and had to short shift alot.

Im also wondering if anyone has any tips or tricks to get the thing opened, what to look for for wear wise, and reassembly procedures. This is my only 5 speed and I want to make sure its up to the daunting task of the turbo.

ive heard that the b16a lsd would fit in the b2k5

Jean matched up part numbers and it appears that A20 gears will fit. If i recall everything should swap into our bell housing. Its on my "to do" list which is pretty big at the moment but i have my eyes out for an A20 gear set.

As for taking apart your tranny the hardest part is you have to take the two allen plugs out of the end and spread the c-clips open to release the housing. On top of breaking the seal so its not always easy but you will see what i mean. You might want to get the snap on allen for a ratchet. I bough a standard metal one and put a breaker bar on it.

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Originally Posted by A18A

ive heard that the b16a lsd would fit in the b2k5

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It does thats what im running you just have to use your speed sensor gear and ring gear.

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Originally Posted by RobT5580

It does thats what im running you just have to use your speed sensor gear and ring gear.

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so the stock a20a gears work on the b2k5? does this also mean that the integra gears work also. I never looked into which gears are the longest and best for my application right now. When you took it apart, the allen plug reveals the c clips?

when reassembling, did you just use the hondaseal gasket maker stuff on bare metal surfaces?

anything that jumps out at you for things to watch out for. Im using the quaife unit also. is there any pre assembly stuff, or lubing of anything. what specialty tools are required inside the case so Im ready.

Yeah the allen plugs reveal the clips you will need a tool to compress the clips. I used special pliers for retaining clips i believe. I dont think anyone has verified that the gears work as of yet. I used hondabond to seal the housing after cleaning up the surfaces. As for tools you shouldn't need much other than the allen, pliers, and perhaps a pry bar. My gear stacks did come out easy on one tranny. My parts tranny was a little harder but i got it apart.

Thats all i can think of. Just keep it clean inside and take your time so you don't mess anything up. The clips were the hardest for me. Basically they lock the hole housing together so you cant pull it off until you compress it.

ok so are the stacks a complete unit that pulls out as an assembly or does it come apart piece by piece bearing and gear seperatly? If you had your choice rob since you drove a turboed b20a, what gear would be the most oportune to swap, all 5 or 1-3 or? What accord/prelude or integra have you driven that you would like to see the b20a gears setup as?

The stacks are bolted up in two stacks and come out as stacks until you break it down by removing the large nut. As for gears im not sure but even on my stock b20a im driving now in 5th gear on the hwy im at 4k around 70mph. I was going to see if the a20 stacks fit in and just try them as is so i dont have to pull the stacks apart. Johnny O has messed around with the stacks and i think he said he was running stock 1-4 gears (a20) with an integra 5th but don't quote me on that.

jonny o has a b20a? I thought he was turboed a20a

Yeah he was running an A20 but i was reffering to his gears since he was boosted.

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Originally Posted by RobT5580

Jean matched up part numbers and it appears that A20 gears will fit. If i recall everything should swap into our bell housing. Its on my "to do" list which is pretty big at the moment but i have my eyes out for an A20 gear set.

As for taking apart your tranny the hardest part is you have to take the two allen plugs out of the end and spread the c-clips open to release the housing. On top of breaking the seal so its not always easy but you will see what i mean. You might want to get the snap on allen for a ratchet. I bough a standard metal one and put a breaker bar on it.

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i thought...the b18 housing shared the same specs as the a20 trans...im not sure about the b20 trans interchanging gears with the a20 tho

r the gear ratio gears shorter? in the b20a

No one has verified this information so its not factual as of yet.

And yes the b20a gears are much shorter than the a20a3. I checked tonight and 4,000 rpm im doing about 75mph.

oh thats just not good enough for me. Im must say after driving my thunderbird around. 100 mph 5th gear 3400 rpm and a 12.70 1/4 time. I need something that drives like this or better. Im going to start pulling it apart in the morning and checking the thinknesses of the stock a20a3 5speed vs the b20a 5 speed. Im not sure if I really want to separate the stacks but well see when i open it up. anyone else have other equests while im in there? I dont think I want to make splitting the housings a common occurance

You might be able to just swap the entire A20 stacks over to the b20a bell housing.

thats my thought actually. im printing up the online book for reference right now so Im not bringing oil into the house or touching my computer for that matter. Ill see about pics and such. I found a bag in the garage I never knew existed. Its a special order from honda full of bearings, seals and other goodies just for the lsd install. Lucky me

ok so Ill measure the gears themselves with a micrometer tomorrow if I get a chance. With a visual check the stacks themselves wont swap as they arent built the same and use totally differt shift linkages. Ill post pics on this later if I can figure out how.

Im wondering though since Ive got it apart, can anyone spare a non vtec b16/b18 final drive gear. Ill check that to specs to see if it swaps. Id like to figure out a way to extend the legs on the b2k5. Witht he lsd comming from these transmission I know it will fit the diff but will it fit the gears and casing? This may be an option.

Oh and thanks rob for the speedy call and knowledge I was able to get.

ok all done. total project time was about 3-4 hours from when the 1st bolt came out till the cases were back together. All I needed tool wise was a 14mm allen wrench, 8mm allen wrench, and a co

Nice, another quaife powered B20 tranny. Do you remember what you payed for your LSD?

mine was new in box from a going out of business buy. It was 730 delivered to my door express mail 3 day delivery. I think its expensive but I hope itll be worth it since everyone else thinks the obx units are as good.

I paid around a grand so you made out!

Let me know what you find out with the gears because i won't bother picking up an A20A3 tranny since you have one in you hands already!

wow $730 to your door, that's a steal!!

what ort of lsd is the quaife?
cone,clutch or viscous?

Torsen

not familiar with how the torsen works
the other three, yeah no worries but not the torsen
i reckon the vscous is best for street use but i want a clutch type
what are the b16a lsd,s