Sas? (1 Viewer)

[RockJock82]

I am considering selling my v8 powered LX450 to get a LX470 for the bigger cabin space and rear ac for the family. My goals are to sas it using as much of the stock Toyota parts as possible. My question is why have so few people attempted this? It doesn't seem like it would be that big of a pita... Another option would be a custom long arm kit but I would like to keep the costs down. My goal is 37's, use an 80 diff with 105 hubs and keep it under 5k for the sas which I think would be very doable...

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[Trunk Monkey]

Looks for Slee's build thread, plenty of reasons why it's spendy.

 

[Fitzgerald]

Here ya go:

https://forum.ih8mud.com/100-series...f-road-1998-uzj105-solid-axle-100-series.html

 

[RockJock82]

Looks for Slee's build thread, plenty of reasons why it's spendy.

I have no intentions of running a 10k high 9... I don't find it necessary... The 80 diff is adequate. I give Slee props for doing 2 of them but my goal again is to do it for less than 5k and done right. People also were afraid of repowering their 80's with v8 as it may seem complex. Not anymore. Where there is a will there is a way....

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[KLF]

Be aware that the non-locker diff in the 80 series is only a 8" 2-pinion diff, it is essentially the same as a mini-truck 4 cylinder diff that is upside down/reversed.

 

[RockJock82]

Be aware that the non-locker diff in the 80 series is only a 8" 2-pinion diff, it is essentially the same as a mini-truck 4 cylinder diff that is upside down/reversed.

The locked diff is an 8" also. Lots of guys run 37's never heard of grenading a center section. Now birfs are another story. Finding a locked front diff would be ideal. I have even considered using d60 front and rear diffs for simplicity and added strength.

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[Newps]

IMOP 60's would be the way to go on this conversion.

 

[Toyoland66]

Certainly doable, the donor parts aren't that expensive if you are resourceful.

I think it may be tough to keep the 8" front diff alive with 37's but that is very dependent on how you treat it.

Curious, where do you source 105 hubs and what is the advantage to running them?

 

[Trunk Monkey]

Not saying you have to do the Diamond axle, just pointing out there's a crap ton of little things to consider, it's not as easy as throwing on a few brackets for control arms and badda-bing.

Guessing the 105 hubs are to maintain the 5 lugs.

 

[Bomar]

This is what I am talking about...I think the 80 front would be fine with longs in front and would be fine

 

[jcardona1]

Certainly doable, the donor parts aren't that expensive if you are resourceful.

I think it may be tough to keep the 8" front diff alive with 37's but that is very dependent on how you treat it.

Curious, where do you source 105 hubs and what is the advantage to running them?

This guy has kept it alive with stock birfields and is now on 40s. Granted the 4Runner is not as heavy as a LC but I've seen this guy wheel and he is NOT easy on the gas. He wheels a lot harder than any of us ever would in a LC and he's never had an issue. As is the case with lots 80s on big tires

 

[Toyoland66]

Guessing the 105 hubs are to maintain the 5 lugs.

Of course, didn't think of that.

You could also run an 80 FF rear, no idea what the compatibility is with ABS/ speed sensors and what is on the 100.

My comment about the axle is more related to the R&P, not the birfs.

 

[yotasavg]

I wouldn't think the 8" diff would be the problem, been tried and proven in many different toyota truck applications, even with hardcore builds. That 4Runner up there also has the damn bumper style someone needs to make for the 100 series...

 

[spressomon]

Sorry...but big doubt about getting done right for $5k. If it was so easy, so quick and so cheap we'd all have SAS on our 100s. But it isn't. That's assuming you want to end up with something more drivable than a dedicated trail rig...which is a general assumed conclusion lest you stay with an 80.

Without measuring I'd guess you'd have to widen 80 front axle housing then custom axles to match the frame width perch, on a 100, for coil placement...for starters. And because of the location of coil springs to axle centerline/axle ends its not going to articulate as well as an 80. 105 outers IIRC are near 5 bills each...that's 1/5 of your parts budget.

Its definitely a cool project...but not quite "win-win" as most think it would be...

 

[KLF]

The locked diff is an 8" also.

Yes, I know, I have one in the front of my truck now. Have re-geared a bunch. But the e-locker is 4-pinion, much stronger. Just a point of info, I'd recommend you try to make that upgrade if you can.

 

[RockJock82]

Sorry...but big doubt about getting done right for $5k. If it was so easy, so quick and so cheap we'd all have SAS on our 100s. But it isn't. That's assuming you want to end up with something more drivable than a dedicated trail rig...which is a general assumed conclusion lest you stay with an 80. Without measuring I'd guess you'd have to widen 80 front axle housing then custom axles to match the frame width perch, on a 100, for coil placement...for starters. And because of the location of coil springs to axle centerline/axle ends its not going to articulate as well as an 80. 105 outers IIRC are near 5 bills each...that's 1/5 of your parts budget. Its definitely a cool project...but not quite "win-win" as most think it would be...

show me how it's more than 5k. I'm curious? The 80 diff is slightly more narrow but workable without shaft mods. Problem is people give up too easily.

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[spressomon]

^ bring it on...love to see you do it...may follow your lead.

 

[RockJock82]

This isn't my first rodeo on fabricating a rig. Most of the time peoples biggest hurdle is lack of fab skills and the tools to do it. Which I can see making a conversion like this a huge hesitation. Once I get a LX470 I will document the conversion and test it out. My goal is to open a new door to the 100 series that most are afraid to open as these rigs are getting cheaper in price. Thanks for the feedback fellas

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[DJWUZJ]

It would be nice if we had a source for 105 axles from abroad... Seems like that would be the ideal starting point instead of bastardizing with axles from a 60, 80, etc.

 

[jgray]

I've been wanting to do this for sometime as well. I had other things on my todo build list first but I'm close to done and I've spent quite a bit of time researching this as well.

Slee is the only company in the US that I still know of that has done SAS's on the 100 platform and they've done at least 3 that I know of now. At one point in time there was some talk of a do it yourself "sas kit" but I don't think there was enough demand so last I recall hearing was it wasn't going to happen. This also may be due to the amount of work they realize and custom applications options for each customer. The first SAS on blueberry I think was able to run up to 39" tires, the second SAS project left with 37" tires and the most recent one I saw pictures of was running 35" tires...

I always felt it could be done cheaper by someone willing to take on more of the labor themselves as well. I figured if I tackled this one myself I would start with a empty custom axle housing and build it myself (was also looking at a hi pinion 9" - lots of new housing options out now), collect as many of the build parts possible in advance and get some local expert fabrication help with the fine details.

Even high end IFS build parts add up fast - ARB locker $1000, new ring and pinion gear set $300+, new upper control arms $550-600, remote reservoir shock pair $800, wheel spacers $150, install kits and other parts add up too... It's easy to drop a few grand on IFS upgrades too I guess is my point...

These trucks are getting cheaper - I've dumped a load of cash in mine already but I'm at 207K miles now... I don't see myself getting rid of my 100 as I love it, I've done almost all the work to mine on my own and I'm due for a new daily driver soon... That said - I'm about ready to hack mine up cut out the IFS and run some 37-39's on it just because I always wanted the Blueberry truck from the time I saw it... I would love to see a do it yourself SAS thread... I've come close to starting one so many times... Lots of stuff will come up if you search SAS on here though - it's been talked about since I joined this forum many years ago...