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Has anybody used the Polyurethane SAD couplings?

Service and Technical info specific the Previa

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Re: Has anybody used the Polyurethane SAD couplings?

Postby batook on Mon Feb 08, 2010 1:38 am

I installed the Toyota SADS bushing kit today. The old bushings were really seized on to the bearing shaft and the coupling flange. After a lot of rocking the tubes with a screwdriver, the bushings eventually tore out of the revolvers completely:

Image

Image


I had to remove them by clamping each part in my vise and rocking the tubes off with a vise grip:

Image


The vise grips worked pretty well to unseat the tubes. The TSB says to use "half of the grease" supplied on each centering pin, but I only used about a quarter of the grease in the tube in total. Here's the rebuilt SADS with the new bushings:

Image

Next weekend--install this thing with new equipment housing mounts. Hopefully the SADS alignment wont get too screwed up in the process. Eric
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Re: Has anybody used the Polyurethane SAD couplings?

Postby timsrv on Mon Feb 08, 2010 3:19 am

Yeah, the steel bushings are a press fit in the shallow bores, so they get stuck. When I did mine I just took a big screwdriver, positioned it on the opposite end of each bushing, then knocked each one sideways.........1st one way, then the other and one at a time they popped right off. As for alignment, assuming the SADS assembly hasn't been disturbed before, I think it's safe to assume Toyota had it lined up pretty good at the factory. Using this train of thought, I marked the mounting bolt locations and just put things back in the exact spot as before. Of course I was using the old mounts (still looked good). Hopefully there's no dimensional changes to the mounts, but if I were changing them I'd double check alignment. There is a procedure for this in the factory service manual inside the cooling system section. Good luck. Tim
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Re: Has anybody used the Polyurethane SAD couplings?

Postby batook on Mon Feb 08, 2010 3:37 pm

When I removed the SADS, I had a very hard time getting it to clear the #3 and #4 "stays" that form a V at the mouth of the SADS housing. I followed the procedure to remove the front (horseshoe) stay and mount, remove the #1 mount (LH side), and then lift up the housing to get the SADS out. This still didn't work for me, given the position of the other end of the SADS, and I wound up having to drop the sway bar to lower the rear of the SADS, which provided the proper angle of the front of the SADS so it could clear the housing. Did you have this much trouble removing it?

I neglected to mark the positions of the stays and mounts, but fortunately, they are clearly marked with dirt outlines of their former locations. :wink:
I'll try to reposition the new mounts in the exact spots as before, and then check alignment per the FSM. Hopefully the shaft will be "STRAIGHT", as the FSM says. Eric
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Re: Has anybody used the Polyurethane SAD couplings?

Postby timsrv on Mon Feb 08, 2010 5:53 pm

I'm lazy so I always look for the easiest way :wink: . I actually didn't remove my SADS shaft or the equipment housing (at least not completely) when I changed the flex couplings. I took the cabin air scoop and top part of the radiator shroud off, then took the clutch fan out. I took horse shoe stuff off and took the equipment housing mount bolts out. Once all that stuff was out of the way I separated the flex coupler from the crankshaft pulley, then while that was loose I moved the equipment housing as far forward as it would go so I could get to the front flex coupler. I left the bearing shaft installed on the equipment housing the whole time and knocked all the bushings loose from their bores (like I described in my last post) and changed the front flex coupling while laying down under the van. After the front coupler was secured I installed the rear flex coupler on the shaft then moved the equipment housing / shaft assembly back into position and attached to the crankshaft pulley. I aligned by simply putting all the mount bolts back into their original positions.

When I took the shaft out of the salvage yard van, I wasn't worried about freon / coolant loss or putting back together (the freon and coolant were out already anyhow). That being the case, after separating the coupler from the crankshaft pulley, I just pulled the radiator / condenser and the equipment stuff (with the shaft attached) right out the front. Tim
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Re: Has anybody used the Polyurethane SAD couplings?

Postby batook on Thu Feb 11, 2010 3:14 am

timsrv wrote:I'm lazy so I always look for the easiest way :wink: . I actually didn't remove my SADS shaft or the equipment housing (at least not completely) when I changed the flex couplings.


I see. I considered attempting to replace the bushings in-vehicle, but since I was removing the front diff, front driveshaft, steering rack (for inner tie rod replacement), sway bar (for bushing replacement), and engine, I just decided to remove the SADS as well. For my other van, I think I'll look into replacing the bushings in-vehicle as you did, since that does seem easier. Eric
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Re: Has anybody used the Polyurethane SAD couplings?

Postby batook on Wed Mar 03, 2010 5:24 pm

Found this auction on ebay: http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=180432148001

It is $65 for a complete SADS, part number 37910 - 28050 (the late-model SADS that fits the Toyota replacement bushings). I have ordered one and can confirm that it is a new, genuine Toyota part.

With the cost of the bushing kit alone exceeding $200 from Toyota dealers, this is an amazing deal. Much better option than sourcing a used SADS off a 94-97 and replacing the old bushings with Toyota's expensive kit. Eric
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Re: Has anybody used the Polyurethane SAD couplings?

Postby timsrv on Wed Mar 03, 2010 5:38 pm

Wow! That's so awesome! I just purchased 2 of them. Only came to $160 with shipping. What a deal. Thanks for posting. Tim

NEC, I expect you'll be buying a dozen or so. Right?
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Re: Has anybody used the Polyurethane SAD couplings?

Postby timsrv on Thu Mar 04, 2010 5:22 am

Okay, I just bought 7 more (these better be the real deal). When this guy runs out I'll resell mine and make a killing :P . What I want to know is where he got them. I see he's sold 28 so far but his auction still says "more than 10 available". I wonder how many he has? Just since this morning he has raised his price a few bucks on the shafts and the shipping. Tim
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Re: Has anybody used the Polyurethane SAD couplings?

Postby gizwiz on Thu Mar 04, 2010 2:48 pm

I bought one, and I don't even have a Previa yet! :lol: (but planning on it)
My guess is that this seller has a line on items that dealers or wholesalers are unloading. His prices are excellent across the board.
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Re: Has anybody used the Polyurethane SAD couplings?

Postby batook on Thu Mar 04, 2010 4:19 pm

timsrv wrote:Okay, I just bought 7 more (these better be the real deal). When this guy runs out I'll resell mine and make a killing :P . What I want to know is where he got them. I see he's sold 28 so far but his auction still says "more than 10 available". I wonder how many he has? Just since this morning he has raised his price a few bucks on the shafts and the shipping. Tim


SEVEN more!! Wow Tim, your car part fund must be endless. I bought 3 (I just rebuilt the white LE's SADS with Toyota's kit, so 1 is for my blue manual and the other 2 are spares for my 2 prevs). That should cover me for another 10-20 years or so I think. I did see a guy on Dallas craigslist trying to sell one for $180, so he had the same idea as you. Not sure why this ebay guy has them so undervalued! Eric
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Re: Has anybody used the Polyurethane SAD couplings?

Postby timsrv on Thu Mar 04, 2010 5:48 pm

Well I figured worst case scenario if I only get $80 each for these that still covers my cost + shipping. But I think these will sell for over $200 each once this guy runs out (how many can he have?). They may even sell for that now as he didn't list them as SADS drivelines. I probably shouldn't have got so many but this part's MSRP is over $1,700. Even with internet discounts, http://www.1stToyotaParts.com sells them for over $1,200. I'll bet dealer wholesale cost is above $800. Tim
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Re: Has anybody used the Polyurethane SAD couplings?

Postby batook on Thu Mar 04, 2010 9:30 pm

I know, it's really incredible they are so cheap. Most sellers of aftermarket bushings for the SADS end up over $80 shipped for the set! I'm guessing Toyota realized they will never unload their stock of complete SADS shafts (who would buy one for $1000+ with bushing kits available?), so they dumped them on this seller. A little scary to see Toyota abandon their parts for an "obsolete" vehicle, but their loss is our gain, I suppose.

They raised the price right after your purchase of 7, so you might have inadvertently tipped them off that their price was set too low. Still, an increase of only $6 is nothing, and still a great deal. I looked into ordering another, and the "buy it now" screen states 15 available, so they are finally starting to run out.
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Re: Has anybody used the Polyurethane SAD couplings?

Postby gizwiz on Fri Mar 05, 2010 12:30 am

Whoops! The SADS party is over. The listing has been terminated.
Maybe he got wise after selling 13 in one day.
Wish I'd bought more!
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Re: Has anybody used the Polyurethane SAD couplings?

Postby timsrv on Fri Mar 05, 2010 2:02 am

Well that makes me feel a little better about buying 9 of them when I did :lol: . Now I just have to sweat it until they arrive (and I can verify they are real). Batook, did you say you already received yours? Have you touched it and held it in your arms? wave: . Tim
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Re: Has anybody used the Polyurethane SAD couplings?

Postby slosurfer on Fri Mar 05, 2010 3:08 am

Maybe NEC bought the rest of them? :)
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Re: Has anybody used the Polyurethane SAD couplings?

Postby timsrv on Fri Mar 05, 2010 3:28 am

If not him probably somebody else. I'm thinking somebody contacted the seller outside of eBay and made him an offer on buying out the rest. I can't believe these things were listed since November. I even searched eBay for the SADS stuff when I did mine back in January. The guy had them listed as a drive axle shaft. Unbelievable. Tim
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Re: Has anybody used the Polyurethane SAD couplings?

Postby batook on Fri Mar 05, 2010 3:44 pm

timsrv wrote:Batook, did you say you already received yours? Have you touched it and held it in your arms? wave: . Tim


Yep, I even compared it to the SADS I still have removed from my 91 LE (which was installed in 95 and the same part number as the SADS we ordered). It is completely identical, down to the bushings and markings on the bolts. One box I received even had the little Toyota part number sticker on it. They are definitely a genuine Toyota SADS.

(PS: I was afraid this might happen when I publicized this deal...that's why I made sure to order the three I wanted before I let the cat out of the bag!!)
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Re: Has anybody used the Polyurethane SAD couplings?

Postby previanewbie on Sat Mar 06, 2010 5:49 am

I read the post listing the auction on eBay while searching for info on the SADS , which I had seen earlier, but being a newbie didn't know that it is what I needed. Got home just in time to order the last one before the party ended! I was still skeptical that it was the real deal until I read batook's (I saw his name on this forum) eBay comment that it was "as described". I was going to shoot for 6 or 7 myself! O well, heres to saving the several hundred that I did. Thanks for the forum and for the post! I just bought two Previas in the last month, love 'em and am starting to get them ready for their next 150k! Again, thanks for the forum, posts, and deal. I'll be here a lot more.
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Re: Has anybody used the Polyurethane SAD couplings?

Postby timsrv on Sat Mar 06, 2010 7:14 am

The 1st two showed up today and I took them with me to pick up some parts I had ordered from Toyota. I offered them to the parts guy for $500 each and he took them both. So anyhow, the other 7 I have are paid for now and I have a little extra $$$ :P . I think I'll keep 2 of the next 7 and sell the last 5 to the other Toyota dealers around here (if they want them). If not, the dealer I sold these 1st couple to said they might want more depending on how long it takes to move these ones (he sells them for over $1,400 each). This dealer also told me that the Toyota flex coupling kits for 94 & up are now NLA. That sounded odd to me as Batook just purchased a set from Colonial Toyota. Perhaps he was misinformed? Tim
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Re: Has anybody used the Polyurethane SAD couplings?

Postby NEC on Sat Mar 06, 2010 3:56 pm

slosurfer wrote:Maybe NEC bought the rest of them? :)


Nope, not me. I quit reading this thread a long time ago until today... I definately would have bought as many as I could to resell if I knew about the deal.
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