Honda / Acura K20a K24a Engine Forum banner

jdm 5 lug conversion help

30K views 43 replies 20 participants last post by  Jas9848  
#1 ·
I put on the jdm(36mm) 5 lug conversion on my dc2 today. I proceeded to try and use the 32mm axle nut and washer and was wondering why it wasnt working for a second. My 5 lug did not come with the 36mm axle nuts and washers. Is there any usdm acuras or hondas that use 36mm axle nuts and washers? The rsx-s is 36mm isnt it? Definitely stuck its 8pm and checker and autozone are no help.
 
#2 ·
I havent put my 5 lug on yet, but from the research i've been doing so far is that the rsx axles are 36mm. You dont need the k series inners and b series outers to fit, they are just a straight install of k series axles. So the axle nuts should be the same as well. correct me if im wrong guys. :cool:
 
#6 ·
SNARF & impact_blu - To get the perfect axle length with RSX-S and RSX base axles you'll have to switch the inner joints. Otherwise, your passenger axle will be a bit too short, and your driver axle will be a bit too long. Switching the inners changes the length slightly and makes them both fit perfectly. SNARF, You have an EG with EGK1's (like me) and this is the way to get RSX axles to fit perfectly.

stlgtodc - CRV's and RSX-S's are two cars that have 36mm axle nuts. Wouldn't it be very easy to get the nuts from your local axle rebuilder?
 
#8 ·
You got it. RSX axles will work when bolted straight in without changing anything. However, some guys have had the passenger axle pull out because it ends up a bit too short. By swapping the inner joints, it changes the length just enough to make the axles fit absolutely perfect. Good luck with your build. :up:
 
#13 ·
JDM DC2R knuckles are just like 97-01 CR-V knuckles. You can get the axle nut and washer for a 1st gen CR-V.

And LSvtecMike is right. The RSX-S axles will fit EVEN BETTER with the inners swapped. Also, no need for a 2nd set of axles.

Also, for anyone curious, the 97-01 CR-V hub can be made into an RSX-S hub by removing material. They are virtually identical. Plus the RSX-S hub is a lot cheaper! I'm thinking about doing an RSX-S or TSX brake conversion as well but I'll need a smaller RSX-S hub. Also, I believe base RSX hubs are the same as RSX-S hubs but take a 32mm spline.

44600-S87-A00 (RSX-S, 01-05 CRV) vs 44600-S47-000 (97-01 CRV):
Image

Image

Image


Notice how the CR-V hub has a wider center bore and wider hub surface? The back of the CR-V hub is identical to the RSX-S hub. They can use the same bearings.
 

Attachments

#14 ·
JDM DC2R knuckles are just like 97-01 CR-V knuckles. You can get the axle nut and washer for a 1st gen CR-V.

And LSvtecMike is right. The RSX-S axles will fit EVEN BETTER with the inners swapped. Also, no need for a 2nd set of axles.

Also, for anyone curious, the 97-01 CR-V hub can be made into an RSX-S hub by removing material. They are virtually identical. Plus the RSX-S hub is a lot cheaper! I'm thinking about doing an RSX-S or TSX brake conversion as well but I'll need a smaller RSX-S hub. Also, I believe base RSX hubs are the same as RSX-S hubs but take a 32mm spline.

Image

Image

Image


Notice how the CR-V hub has a wider center bore and wider hub surface? The back of the CR-V hub is identical to the RSX-S hub. They can use the same bearings.

So can I put the CRV hubs on my DC2R and make my 32mm in to 36mm?
 
#19 ·
It SHOULD be. Since the EKK2 engine placement is going to be similar to the EGK1 placement.

If you're using the JDM ITR or CRV setup, then you'll need to use 36mm axles. If you're using USDM ITR, then most axles out there for the EGK1 should work too.

I'm using CRV knuckles and will be using RSX-S axles with swapped inners.
 
#21 ·
Yes, there is a difference. Actually, the JDM ITR uses the 36mm and the USDM ITR uses 32mm axles, much like the Civic Type R.

Parts are easy enough to come by without going to some specialty place. If you want JDM ITR front knuckles, look for 97-01 CR-V knuckles. They use the exact same brakes and rotors as the JDM ITR too. All USDM knuckles are the same. If you have an Integra knuckle (I believe even some Civic ones will work), then all you need is a new bearing, hub and rotor for an ITR. And the calipers from a Prelude/CRV.

For the rears, if you already have disks, just go to Napa or the dealership and order ITR rear bearing/hub assembly and bolt it on using a Mazda 626/Protege axle nut. This is documented on Honda-Tech somewhere.


* Hint at finding a bearing's outer diameter size... In a parts list, look up the CIRCLIP part. It usually has a number like (79) or (84) which simply translate to a 79mm or 84mm bearing width.
 
#22 ·
Bumping thread as more people need to see this. :D
 
#25 ·
So to summarized this whole 5 lug conversion cheap route.

Front: Get the knuckles, rotors, calipers, hub, bearings from a CRV, or find it at a junkyard for the whole assembly.

Rear: If you have the rear disk conversion already, the rear trailing arm of the em1 (civic si) should mate up to a ITR rear bearings/hub using a mazada 626 axle nut.

What about the rotors and calipers for the rear?
 
#27 ·
So to summarized this whole 5 lug conversion cheap route.

Front: Get the knuckles, rotors, calipers, hub, bearings from a CRV, or find it at a junkyard for the whole assembly.

Rear: If you have the rear disk conversion already, the rear trailing arm of the em1 (civic si) should mate up to a ITR rear bearings/hub using a mazada 626 axle nut.

What about the rotors and calipers for the rear?

any specific year axle nut
 
#26 ·
Rotors and calipers off an Integra Type R will work. Using RSX rear calipers might work if you can figure out a way to connect ebrake cables. Not sure if last gen Prelude will work since the rotor is a different height but same diameter but they could have just offset the mounting points.

Also, the RSX rear caliper is the same as the ITR one. And perhaps the first gen TSX? I don't have my cross reference notes in front of me.

As for the axles, RSX-S axles will work (for 36mm spline) but you need to swap inners.
 
#30 ·
Rotors and calipers off an Integra Type R will work. Using RSX rear calipers might work if you can figure out a way to connect ebrake cables. Not sure if last gen Prelude will work since the rotor is a different height but same diameter but they could have just offset the mounting points.

Also, the RSX rear caliper is the same as the ITR one. And perhaps the first gen TSX? I don't have my cross reference notes in front of me.

As for the axles, RSX-S axles will work (for 36mm spline) but you need to swap inners.
does it matter if its type s or base caliper
 
#31 ·
I believe the rear caliper (and rotor) are the same between base RSX and Type S. However, you might need to fab a little adapter for the e-brake part. I think the ITR style was like a fork with a pin in it while the RSX was a loop that went over a hook (and held in place by tension).
 
#33 ·
Here is a twist, I can't find any other information. The rear trailing arm of the ITR is 52370-ST7-R02 and 52371-ST7-R02. Which is an independent part numbers from a GSR, GS, etc... Right now I have the complete GSR rear brake system. Would buying just the rear ITR hub/bearing assembly, press it on the GSR trailing arm work? I would assume the ITR rear calipers and all the arms are the same as GSR? So close to getting my 5 lug conversion but yet so far...
 
#34 ·
Yes, you can just slide the ITR rear hub and bearing assembly onto any trailing arm that originally came with disc brakes. No need for a press. It slides in and out that easily. Just be sure to get Mazda Protege (whatever the last few years were) axle nuts since you have a shorter shaft on the spindle than the ITR.

The calipers I believe are different. At least the bracket is. I'm not sure if the rotor surface has the same offset or diameter as the ITR. If you're not getting everything at once but know you're going this path, try test fitting your GSR calipers with ITR rotors.