Been doing a bunch of research thanks you to guys!!
For those interested this is all in reference to modern D series swaps for our cars.
Lowering a car is a great simple solution, however, in higher hp applications torque steer can result from unequal length half shafts. There are two ways to fix this:
1) Buy a Limited Slip Differential and this will eliminate torque steer. I've seen these for $280/free shipping (not a good choice IMO) to $885/FS and are a wearable item due to the clutches inside so they do need rebuilding. You do have to split the case and install this.
2)Use equal length half shafts (cv) with a intermediate shaft behind the motor. This is pretty much a non wearable item, with the exception of the bearing, and is installed outside the tranny. Also if you desired a spool I did see a post on a car that was on Pinks where they welded up the differential:cheap. Not sure about driveablility though.
The Intermediate shaft option was only available on JDM cars. The JDM equivalent or the bellhousing that matches the D series tranny is the ZC series, so you will need a ZC tranny for a ZC intermediate shaft. Far as I know there are only 3 generations ZC trannies that used intermediate shafts, maybe more but I think if there is it must share the same intermediate shaft as the 3rd generation of manual trannys that came with intermediate shafts, or they just used unequal length cv shafts. So when I talk about generations of ZC's, although there were many kinds of motors, I will be talking about the generation in reference to the transmission, and only the trannys that used the intermediate shaft. There are three intermediate shafts for three generations of ZC trannys. The first one is for the 86-89 Integra (also termed a ZC) with a cable clutch, the 88-91 ZC with a cable clutch, and the 92-95 DOHC ZC with the hydro clutch (this would be the one Silentdork refered to as the Japanese S20). I also might mention that the 92-95 SOHC transmission did not use the intermediate shaft, it used unequal length axles. Now I'm sure your thinking like I was.........that I could just get the intermediate shaft and use it on my D series tranny. Nope, while the newer ZC trannys uses the same differential the SI/EX the differential, which requires a bigger carrier bearing than the LX/DX, it also takes the heavier duty Integra inner CV joints. Depending on the application this may take a custom axle set up as to I have seen several newer swaps and they talk about swapping the inner cups (inner cv joint) or the outer cups (outer cv joints). For the 84-87 civic/crx crowd our cars already came out with the 86-89 Integra style motor/trans in Japan. Depending on your engine choice your D series block may or may not have the holes to mount the intermediate shaft. Like Silentdork mentioned about the 1.5L do not have the provisions for mounting the intermediate shaft. Never fear though! Within the last year or so Hush22 makes an adapter that allows you to use preexisting holes (pics below), but due to the respacing of the alternator though this may not work with hasport D series mounts, for example if you decided to use the 92-95 DOHC ZC trans with the intermediate shaft coupled with a 1.5L you might have real problems trying to get that alternator next to the frame rail since you already had to dent it to get the alternator to fit in the first place. If you do a D series swap with this transmission and motor mounts like Zephyr did you'll have to do some minor welding but swapping a D series this way won't interfere with the torsion bars so you can resume stock ride height and if your using a 1.5L I am sure you'd have plenty of clearance for the Hush22 intermediate shaft adapter. You do loose the extra space though that Hasport provided for you when the moved the motor back for a turbo though. That is always been the nature of the swap though, your doing something that was never originally designed and I have seen several say that they are content to have their B series without AC. I have concluded that the 88-91 ZC trans at this point not a viable solution, but someone may get bored later and do the leg work to figure out just how to do it.
Think it can be done the with a combination of a Hasport Right hand bracket rewelded, a rewelded 87-87 civic/crx engine bracket complete with chedda's bushings, and the way RTM did his rear mount in the swaps section. The 92-95 DOHC ZC trans with intermediate shaft is the option to use with the Hasport mounts. The only hitch to the 92-95 DOHC ZC trans is that if you choose to use the intermediate shaft it is hard to find. I have heard that you can find them on thezcr.com by posting in WTB section, Hmotorsonline also occassionally gets them, and I believe jdmtigerjapanese.com will also sell just the intermediate shaft by itself. You have to call these places every 2-3 weeks as they get new shipments to see if they have gotten one to sell yet. All the other JDM places may list the trannys but don't carry the intermediate shafts. Some places have the intermediate shafts but will only sell them with the transmission (wise IMO). If someone ends up with one I am sure they can be copied. I have gotten a quote of $300 from a place online I called called Hudlow Axle. I called Raxles and was disapointed. I don't know who I talked to, sounded like an older guy, maybe even the owner, but he said he couldn't do it, that a way would have already been found to do the ZC intermediate shaft if it could have been done, that he wasn't stupid, if he could do it he'd be rich, he would loose money on the deal, and to make any sort of profit on it he'd have to charge $1000. That was a worthless pointless call and I lost huge respect for Raxles, especially since there business is custom cv axles. Hudlow said they could do it for $300...........I'm just saying.........So posting some info below that might prove helpfull for people doing the D series swap and will repost all this on my build thread. Also will try to get some better pics of the intermediate shafts.
Hush22 adapter
Additional Pics of adapter on facebook
Additional info I found on Honda Tech from a user named jlicrx
"84-87 JDM CRX Si/Civic Si "browntop" DOHC ZC, 86-87 JDM Integra "browntop" DOHC ZC, 88-89 JDM Integra "blacktop" DOHC ZC all used the CG transmission same as in the 86-89 Integra D16A1 - has separate cover for 5th gear - uses same intermediate shaft as the 86-89 USDM Integra D16A1 - doesn't bolt right up to any other D-series blocks and has different mounts from 88-91 (picture below)
88-91 JDM CRX Si/Civic Si "blacktop" DOHC ZC uses L3 transmission similar to 88-91 USDM CRX/Civic - uses ZC intermediate shaft (with female outer end) and the larger 90-93 Integra type axles
92-95 JDM Civic "blacktop" DOHC ZC uses transmission similar to 92-95 USDM Civic - uses ZC intermediate shaft (with male outer end) and larger 94-00 Integra type axles - has hydraulic clutch"
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