NAEGH22

i currently have a h22 with an m2a4 tranny in my 93 civic using egh2 mounts. i managed to get an m2b4 tranny for cheap but when i went to swap them over i found that the tranny now contacts the bottom of the frame rail.

i did some searching on here and found some people saying that the m2b4 casing is larger that the m2a4 casing. this would explain why it now hits the framerail. can anyone confirm? i no longer have my m2a4 to measure the difference

anyway, for the guys that have had to notch/dent their frame rails to fit the h22 in their civic can you post up pics/tips of how you went about it. i realise i could just take a hammer to it but im interested in the techniques that others have used.

thanks

NAEGH22

anyone?

ESP.net

I believe its only the Diff area of the trans is larger, far as midshaft and axle lenths are concern wouldn't think there would be a difference

AMeg6

i had a 93 si with h22 and m2b4 with hasport mounts and had no clearance issues

RotiEatter

iTrader: (1)

I had a 92 DX HB with JDM H22A and M2B4 with Hasport EGH1 mounts and I didn't have a single issue either.

AMeg6

pics would help greatly

oneoffaccord

i would love you see pics, im planning on doing this swap in the near future.

e46civic

Its not a very big dent, I cut 2 slices with a sawzall and tapped it in with a hammer and chisel. Maybe an inch wide.

crazychickenhead

I had the same problem, and I dented it in 2 places also. You can see where I drew on the bottom of the frame rail with a sharpie to mark the area where I needed to massage.

siregcivic

my friend had a h22 eg with the m2y4 tranny, we used the hasport mounts where it has the mount that bolts up underneath the framerail to the tq mounts... not the solid one like above, it had a polyurithane mount...

it fit just fine we had no problems with his, the only problem i had was putting the skunk2 intake manifold he had on the motor, back on the motor once it was in the car, that was a bitch, everything else fit just fine had no problems with anything

crazychickenhead

my h22 sits pretty far back, i'll post pictures of it, but there's probably less than an inch between the tps and firewall. There was plenty of room up front though, so the stock h22 A/C fit without any modification. I just removed the stock puller fan. I plan to run a slim pusher in front of it instead.

NAEGH22

yeah thats exactly what mine looks like.

the yellow arrow is the part on the gearbox that is now making contact with the frame rail. there is an oil passage in that bulge so you can't shave it down, which means the frame rail has to be modified to clear.

the blue arrow shows the area that needs to be modified to give clearance for that part of the gearbox.

how much did you have to cut/hammer that part in to give adequete clearance?

also how did you go about doing it?

have you got any other pics of how yours looked after you made the clearance on the frame rail?

SolAssassin

I didn't read anyone's replies, but I will tell you this... you MUST cut a notch in your frame rail where it hits. Believe me I have gone through this H22A swap with Hasports in at least 3 EGs already including one of my own. If you don't do it you will crack your case. It makes no difference which tranny you have. The M2A4 has a fatter case to house the LSD but it is by no means longer.

Either notch your frame with a grinder, or buy the Avid (or HCP) mounts, which I have also used once. They move the engine & tranny over considerably and allow you to run DA axles. Only problem is that with the Avids you can kiss your power steering goodbye