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Broc Luno

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About Broc Luno

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    Broc

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  • Lexus Model
    RX 300
  • Lexus Year
    2003
  • Location
    California (CA)

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  1. Yup, most are interchangeable. There are some differences in special order axles and stuff. But run of the mill stuff all goes over.
  2. OK, but the only way to really know is pull the rear diff cover and look. Might do that when you get ready to change the rear diff fluid ... Easy to reseal as Toyota/Lexus only uses a bead of RTV around the edge to seal the rear cover, even from the factory.
  3. OK, I just posted an update on the Torsen Posi swap for my RX in that thread: Posi (Limited Slip Diff) for your RX Some decent info if you need one.
  4. OK, here is the long over due update. I have an 03 and I contacted Jimmy Vasser Toyota (JVT) in Napa Calif to see whether they would do the swap for me? Yes, they would. So I found a Torsen rear diff at B&R Auto Wrecking in Oregon (excellent source of good parts: https://www.autowrecking.com/ ). Bought it and had it shipped. Around $240 by the time it got here. I had already been shipped a couple of non-posi's by other vendors (advertised as posi's), and refunded my money when I pulled the rear covers and found them to be std open diffs. eBay adverts can be misleading ... But they
  5. Just to be clear on my terminology: Center section means the guts of a differential (carrier & internals), and in my posts, does not refer to the transfer case. I do mean to be introducing the transfer case into this discussion in any way. The used diff example I'm dealing with is not simply a Posi, this is a Torsen center section with spiral gears and no clutches. I am new to Toyota and Lexus and their terminology. I use phrases and terms I have used all my life, all the way back to NASCAR in the late 1960's (Super Modifieds). I am an experienced off roader who got paid
  6. That works fine if you have a Lexus VIN. In general, Toyota VIN's are a bit harder to decode. And not all Wreckers will supply the VIN until after you buy the part ... Since Lexus stopped offering Torsen Posi's after 2001 or so in the USA, you'd be searching on old vehicles, usually with a lot of miles. But, Toyota offere3d the same rear diff in Highlanders and Rav 4's. So getting a later model rear diff with less miles out of one of these is more likely. But, in doing so you end up where I was with bogus and misleading parts sales and the hassel of sorting it all out. Of course
  7. Well, just a short update: After ordering and cancelling or returning, or just dumping in the recycle bin (after getting refund) on three eBay "Torsen Posi's" sold as used, I finally got a real one. Came out of a Highlander with 119K miles in Oregon. So they are out there 🙂 Had back and forth's with the vendors. Most won't even take the time to pop the rear cover and actually check ... They insist they are factory Torsens. But when they get here, they are not. Sent letter to Toyota asking about using VIN or Build Plate to ID candidate cars, no dice - they would not supply any info
  8. I dunno if the Gen II RX's will work well with the Toyota Limited Slip Differential (LSD) due to the change in transfer case? I just don't know enough about that build. But, if you want to add capability, you could try a posi rear end. You'd be looking for a donor vehicle (RX, Highlander, Rav4) with an axle code -04A denoting the factory Torsen LSD option. If you find one in the same year as yours, you'd know it'll work with the transfer case and it would be a good upgrade 🙂
  9. Well I found one in Oregon with 158K on the ODO. Seller (B&D Auto Wrecking) confirmed that it was/is a locker. So after the previous three vendors failed to check well enough and either sent the wrong part, or just refunded my money after double checking, I pulled the trigger and got it. Yup, it's a Toyota OEM Limited Slip Differential carrier complete. Raining right now, so don't want to open it up, but will in a few days. Looks like the right rear stub axle seal was weeping, so before it goes into my RX, I'll have the shop install all new seals and double check the lash. I don't wan
  10. Well I found one in Oregon with 158K on the ODO. Seller (B&D Auto Wrecking) confirmed that it was/is a locker. So after the previous three vendors failed to check well enough and either sent the wrong part, or just refunded my money after double checking, I pulled the trigger and got it. Yup, it's a Toyota OEM Limited Slip Differential carrier complete. Raining right now, so don't want to open it up, but will in a few days. Looks like the right rear stub axle seal was weeping, so before it goes into my RX, I'll have the shop install all new seals and double check the lash. I don't wan
  11. OK, let me follow up. I worked for years, maybe decades in Calif State Parks doing erosion and trail condition assessments. I have driven just about every sort of off-road trail you can imagine. Going off road is as much about mind-set as the vehicle. Since you have a 330, you have a different sort of AWD than the RX300's and the 07~09 RX350's. Your vehicle has a different transfer case and links between the front wheels and rear. " 2nd gen 04-06 has the MFVA transfer case, and does not contain the viscous coupling mechanism, it is lighter and simpler than 1st gen model. (according t
  12. Yup. I'm coming from a full boogie Big Bronco 4x4 with Lo-Range, manual locking hubs, and Posi out back. That truck has 230K and is really too big for our retired life-style. Pain to get in and out of back seat, pain to park in modern parking spaces, rough riding, very fuel inefficient, etc ... I'm working on a book about WW-II training areas in the desert south west that my mom started (WW-II WAC Vet.) before she passed ... I need to visit and photograph a few hundred locations. The desert does not hold any surprises for me. I have been all over the routes I will traversing wit
  13. More pictures here: https://www.clublexus.com/forums/rx-1st-gen-1999-2003/607402-post-pictures-of-your-rx300-on-here-7.html Post 122 🙂
  14. I just bought a a very clean RX 300 (03) and will bring it home tomorrow. It's the one I wanted to look at two weeks ago. But family responsibilities took precedence. And as I checked, it disappeared off the web sites, so i assumed it was sold 😞 But, when we got home, it suddenly reappeared on listing sites, so I sent a message asking the dealer to hold it until I could see it and test drive ... They did, and I did. Paid for it and will pick up tomorrow 🙂 Seems it threw an Air-bag code while on a test drive. So the dealer put in the shop at Lexus and paid the freight for a ne
  15. OK, I been digging and digging. Been to all sorts of off-road after market and race after market vendors, and no Posi's available ... It is believed that this is the Toyota 6.7" ring gear diff ... But Toyota made lots of OEM Posi's it seems. The RX uses a differential carrier and gear selection designated -02A as shown at the bottom of the build plate in the door jam. This rear carrier and differential were available with a Posi (Torsen), all gear - no clutch, center section in RX's from 99 to 00. Then Lexus dropped the option. The same rear end was used in RAV4's, Highlanders,
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