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Old 06-24-2019, 03:26 AM   #1
Bailey_CatDaddy
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Aluminum knuckles

Has anyone converted to a newer Honda knuckle?

I thought the 03~+ TL and TSX were aluminum? I mainly wonder if the axle hub spline is the same.
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Old 06-24-2019, 04:51 PM   #2
Raf99
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No. I wouldn't think any other knuckle would match ours.
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Old 06-25-2019, 08:48 AM   #3
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Having just changed lower ball joints on my '04 TL I can assure you that it has cast iron knuckles, and lower control arms. The RL's have full aluminum knuckles but I don't think they would work without all of the other associated parts.
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Old 06-25-2019, 11:48 AM   #4
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You'd have to retrofit quite a bit. As mentioned, the '05-'12 RL uses aluminum front knuckles, but the outer CVs would have to be swapped, and a custom lower control arm solution would have to be adopted, as a minimum. In addition, the different shape could necessitate longer or shorter axle shafts, you'll need a custom outer tie rod solution (likely just use RLs, but they may not be long enough for proper thread engagement) and the upper ball joint taper hole could be different (though I don't think it is). Once this was done, you'd have a front lug pattern of 5x120 and a rear of either 4x114.3 or 5x114.3, depending on whether you were converted.


There are other cars out there with aluminum front knuckles, but that's your basic formula of seeing if they'll fit.
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Old 06-29-2019, 01:21 AM   #5
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Thank you everyone for the info. It was extremely helpful! I honestly donít think aluminum knuckles would do that much for the car I was just curious because I am planning on doing 5 lug front eventually/soon. But I know a TL type S with brembos is coming my way soon as well so I am holding out!

My car so far handles great I just want any extra edge I can get! Ha ha ha
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Old 07-26-2019, 07:26 PM   #6
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I'm not sure that the Brembos will do much for you other than look cool and force you to use larger wheels. The stock calipers are perfectly adequate for stopping the car in about every imaginable condition. In fact with some race fluid and race pads they will stand up to endurance racing just fine. The larger wheels will add way more unsprung weight that will be saved by the aluminum calipers. The larger wheels also add rotational mass.

My Acura TL will be arriving at a picknpull somewhere here in the bay area soon. It had brembos and a 6-speed with an LSD. If you're local to here be on the lookout for an '06 TL manual soon.
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Old 07-30-2019, 01:30 AM   #7
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Exclamation

Quote:
Originally Posted by ukemike View Post
I'm not sure that the Brembos will do much for you other than look cool and force you to use larger wheels. The stock calipers are perfectly adequate for stopping the car in about every imaginable condition. In fact with some race fluid and race pads they will stand up to endurance racing just fine. The larger wheels will add way more unsprung weight that will be saved by the aluminum calipers. The larger wheels also add rotational mass.

My Acura TL will be arriving at a picknpull somewhere here in the bay area soon. It had brembos and a 6-speed with an LSD. If you're local to here be on the lookout for an '06 TL manual soon.
**Streets of Willow

Well, funny story. I went to the track Saturday, 106*F outside peak. But it was an evening event so temps got lower as the day progressed. A guy at the track said that I already have wagon front brakes, (neat!). And I actually didn’t get too much fade, using dot 4 and non-race pads! It was kind of surprising, considering that they are pretty small.

I use 235/45-17 Federal 595 RS-R (140/200AA) on 17x8 +48 wheels.
Ended up running a 1:36.081. That’s less than half a second off the pace of the Honda S2000 CR being driven by a professional test driver when it was released!

The best part is that I still have A/C, power steering, etc. Stock intake, stock header, stock catalytic converter.

Mods include: a catback exhaust, camber kits, polyurethane bushings on the rear Lowers, and a very large prelude front sway bar with a progress rear sway bar.

Couldn’t have been more pleased! And since the brakes did work so well, the thought of an upgrade is completely unnecessary.
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Old 08-04-2019, 08:45 AM   #8
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Obviously you haven’t read the posts above. All your questions have already been answered.
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Old 09-27-2019, 11:44 AM   #9
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Originally Posted by Grumpys93 View Post
Obviously you havenít read the posts above. All your questions have already been answered.

If you re read my post I was confirming that in fact, for Racing you really donít need brembos.
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Old 09-27-2019, 03:08 PM   #10
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Yupp & even just switching out your stock lines for steel braided lines
will do a great improvement!
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Old 09-30-2019, 02:19 AM   #11
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The 03 CL knuckle bolts right onto our CB7s. I did my 5 lug swap this way. But you'll need a minimum of a 16" wheel to clear the 11.8" rotors it has. Also you would have to use the CL brackets to make the caliper work.

I've got Legend GS/LS 2 piston calipers using CL brackets.

Lower balljoint fits, as does our OEM axles into the splines of the CL hub/bearing assembly.

Your alignment will be way off when you first install also, so that'll need to get adjusted immediately after the swap. But i'm having no drivability problems after going this route. 99-03 TL and 01-03 CL use the same knuckles in front and can be swapped right over.
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Old 10-01-2019, 10:47 PM   #12
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For that matter, the '98-'02 Accord V6 uses the same knuckles, hubs and bearings, as well. The difference just being the rotor and caliper bracket attached to it. The rotor on the TL/CL is an 11.8" disc, and the '98-'02 Accord is 11.1".
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Old 10-02-2019, 01:33 AM   #13
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Thank for all of the clarification. I was at the junkyard today looking at the cars and I looked at the legends, a CL, a CB and a vigor and was thinking that it looked like theyíd all bolt right in almost! Thanks for clarifying which ones actually do!
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Old 10-02-2019, 01:49 AM   #14
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The Legend is a no-go. The hub splines are not the same as the CB axles, nor are there any compatible hubs that match the Legend bearing ID that I've found. Also, the lower ball joints are the larger units also found on the Preludes and newer Accords/TLs/TSXs. You'd have to ream out your lower control arm to match the larger size joint. Could be good for performance (I've done it), but not drop-an-go.

The Vigor is the exact same thing as the CB, so no advantage there.
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