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Hey Prime-mates, I'm having an issue with my 5-speed transmission 2-3 years after I rebuilt it. At the moment, while shifting into 5th gear above ~40mph, my synchro doesn't seem to engage properly at first and I get a gear grind or buzz for a second going into gear. Regardless it always ends up...

Up for sale is a complete used set of 12 updated spring-style LMAs, pictures below. They show normal wear marks on the tops, the rest is just dirt from storage. Note that these don't have the small spacers on the bottom of the spring, which I think means these are the year 2000+ version...

EDIT 4/17/24: Lowered price to $900 + shipping Hello all, Up for sale is a new (with box) NSX front cylinder head, including A/T-spec springs and valves. I believe it was produced in Oct. 1999 according to the date stamping. EDIT: This is an 3.0L spec head with 35mm intake valves, would...

Hi all, finally getting into wrenching again and have a couple questions for the Collective. I'm in the middle of converting my R-12 A/C NSX to R-134a. I'm replacing the compressor with Denso 471-1194 (and swapping the pulley/coil assy from the old comp with old bearing unfortunately), new...

*SOLD* For sale is my brand new set of Advan RGIII wheels in Racing Gold and a set of 4 matching Advan center caps, specs below. The first pictures below are of my own separate set and then the new set for sale. F: 17x8 +38, 5x114.3, 14lbs R: 18x10 +35, 5x114.3, 17lbs Caps: V1215 - bronze...

Selling brand new in-package OEM brake rebuild kits for 97+ calipers, 4 total for front & rear. I accidentally bought these instead of 91-96 rebuild kits which have different piston sizes so those seals are incompatible. The kits include all rubber seals and piston/pin boots, banjo bolt...

Reposting since the old WTB thread was sent to the void. Looking for a set of L & R taillights (maybe center lens too), prefer JDM darker lenses, and used if possible for an LED conversion. Prefer no noticeable cracks in lens or badly warped ones. Show me what you got TIA

SOLD: Selling my set of used Pride resonated test pipes. Bolt on for all years, 95+ needs CEL fix. Used for ~4000 miles. I can include the old gaskets and bolt kits if you want, new gaskets from Pride are $18. The resonators smooth out the sound a bit more over the straight-through versions...

Lookin' for a Shine GT front lip/spoiler, aka "NA1 NSX Spec-GT Front Lip Spoiler". Prefer FRP, condition not a big deal as long as it's not split in half. Thought I'd put out a post before ordering new since lead times are long.

Looking to buy a set of JDM taillights, mainly the L/R units and center Honda garnish if also available. Might also consider Acura taillights to tint. Prefer used units in decent condition, they will be torn apart for LEDs but I'd prefer little to no cracks on the exterior lenses. Leaks or...

Selling my slightly used set of Muteki closed-end neon chrome lug nuts w/locking key set, includes deep 17mm socket and key socket. 60 degree taper seat for aftermarket wheels. 17mm socket size for less chance of marring your wheel lug wells. Be warned, for Super Tuners only ;). Part # is...

Primates, I've lowered my car on coilovers as most owners are wont to do, and now my rear camber is too negative for my liking and tire life. By eyeball I think I'm around -3.5° or less, before lowering I was at about -2.5°. I just bought a DIY alignment kit and will check actual camber once I...

Somewhat of a beginner question from me. When you say using a 235/40-17 tire up front will obviously rub, do people go ahead and run that size anyways for a track-only tire since you might not care as much about rubbing, or would you put on spacers if possible to make more room? Or only possible...

I know everyone's been waiting with bated breath for this once-in-a-lifetime opportunity to own my used low-mileage stock automatic transmission removed from my 1990 JDM NSX for a transmission swap to manual. The transmission had no issues when removed, all shifts were smooth, confident...

Selling my set of 4 used A/T spec engine mounts from my 1990 JDM NSX, ~45,000 miles and est. 30 years of action when removed. The rubber on some mounts has visible cracking so they would be good cores/candidates for the SoS mount refresh program, Cedar Ridge kit, or a DIY urethane/windowweld...

Selling my used stock 4.062:1 differential ring gear since I swapped my 5-speed to the Type-R spec. This should be used with the stock 4.062:1 countershaft and oil pump drive gear. Part # is 41233-PR8-000. Had an estimated ~75,000 miles on it before removal from the used 5-speed transmission I...

Looking to buy a Modulo replica spoiler made by PRIDE or elsewhere, carbon or not, aesthetic condition not a big deal but would like the 3rd brake light included. Located in Atlanta, GA, will pay for proper shipping if needed. Thanks!

Presenting several of my leftover parts from my recent 5-speed transmission rebuild and manual swap. Used unless otherwise noted. Most of these will be thrown out or used as wall ornaments if they don't sell. Willing to ship from ATL, buyer pays for their desired shipping method, don't worry...

Hi all, not sure whether this is better in DIY or Suspension so here we are. I finally got my car aligned this week and the front right camber couldn't be brought into spec. I knew the lower FR had been repaired from an impact at some point in the last 30 years but I hadn't noticed an issue...

Hey all, I'm looking for qty(1) each of the upper and lower hoses to the coolant expansion tank, should be shared with all years of NSX. Parts are 19103-PR7-A00 and 19104-PR7-A00. I'm in a bit of a bind since the silicone hoses I got are too big for the OEM clamps and worm drive clamps just...

Hi all, quick questions about the JDM center console switch panel in my car. I just put the center console back together and found something weird. One, what is the green 5P connector used for? The blue 5P is for the antenna half mast switch, and the green 6P is for the fog & running lights...

Hi all, Figured I'd post a new thread here to start a discussion about an issue I've been having that I haven't been able to figure out. Basically, after about an hour of driving my '90 NSX, some combination of things will happen, sometimes all at once, sometimes just one: -Speedometer starts...

Me again... I'm putting my old reverse gear back onto my new NSX-R 4.23 countershaft and notice both the gear and shaft have oil holes at the same "height". Of course, the FSM doesn't show anything about these holes and I didn't take note of how the gear came off when I was pressing it. How am...

Hi all, I'm looking to get one (x1) more of the updated NA2 exhaust manifold gasket, P/N 18115-PBY-J02. It's backordered at Acura and I need one more soon to do my header swap. LMK if you have anything available, or maybe if you know of an aftermarket version that also has the slightly bigger...

Greetings everyone, I'm in the middle of my 5-speed transmission rebuild. It already has the JDM shorter gears for 2-4 installed, and I'm putting in the NSX-R 4.23:1 countershaft, ring gear, and oil pump drive gear as well. I've completely disassembled both main & countershafts for inspection...