Alternative rear disc conversion?

[tayxas]

Originally Posted by Neinris

I was hoping to drop this comment yesterday to commemorate the two year start date of this project, but I got too busy.

Anyway, I know there's other threads out there that discusses what parts are required, etc., here's my version of what's required:

Hey Neinris, glad I found your thread. Are you willing to reproduce a set of those brackets? SE rear beams are rare and pricey. Would rather go this route.

[sh0rtlife]

so i found out something intresting

the XD uses the same rear beam as a yaris/prius but is 5x114, and...its drum
front suspension is all yaris..except the hubs..
i was digging thru toyotas own parts sheets, as i got a notice that theres an XD thats in a local yard....and its a "release" RS..and i wonder if the relese got a rear sway...same part as yaris btw

what im unsure of is if the XD drums are bigger than the yaris oe drums..other than being 5 lug

but what this tells me with 100% certanty is if you want to go 5lug the XD parts will get you there....shit i need to look at the front rotors and see if the cross referance to a rolla/camry/xb

even toyota DOES NOT cross referance the XB beam to anything but XB....but that could simply be the "tabs" and "ears" for disc brakes....as soon as its not a freak show of weather ill get you measurements off our patchwork xb-2

ROTOR ..rolla matrix XD...caliper rolla XD......

[Neinris]

Originally Posted by sh0rtlife

so i found out something intresting

the XD uses the same rear beam as a yaris/prius but is 5x114, and...its drum
front suspension is all yaris..except the hubs..
i was digging thru toyotas own parts sheets, as i got a notice that theres an XD thats in a local yard....and its a "release" RS..and i wonder if the relese got a rear sway...same part as yaris btw

what im unsure of is if the XD drums are bigger than the yaris oe drums..other than being 5 lug

but what this tells me with 100% certanty is if you want to go 5lug the XD parts will get you there....shit i need to look at the front rotors and see if the cross referance to a rolla/camry/xb

even toyota DOES NOT cross referance the XB beam to anything but XB....but that could simply be the "tabs" and "ears" for disc brakes....as soon as its not a freak show of weather ill get you measurements off our patchwork xb-2

ROTOR ..rolla matrix XD...caliper rolla XD......

We're getting mixed up with my other thread... Thanks for looking into this, but I already know that Yaris and xD shares the same suspension and that the rear beam from the xD will fit the Yaris, but which Prius are you referring to? Is it the Prius C with rear drum brakes or the regular Prius with rear disc brakes? The xDs have bigger rear drum brakes, ID is 229mm, Yaris is 200mm. I'm using xD front calipers for my bigger SE front rotors, I believe they're the same the Corolla's and maybe even the xB2 because they all the the same 275mm front rotors.
The xDs are 5X100 PCD and so are Corollas, I want 5X114.3 PCD like xB2 and Camry. So no, I'm not using the xD set up.
One of the members here, myfirstyota, did an engine swap and also swapped temporarily to the xD front knuckle. See the red car in first post (if you can see the pics, I can't for some reason see his posted pics when I'm at work, but I can see other people's posted pics).

https://www.yarisworld.com/forums/sh...ad.php?t=61427

[sh0rtlife]

took measurements off the xb2 as i had time and right now im going to say that i think its too wide...i couldnt compare to the yaris but i could compare to the xb1 on the lift and its 5 inches wider at the lug pad....ill happly post the numbers later if you want

hell the springpockets are 6inches deep too!!!!..64ish wide

[Neinris]

Originally Posted by sh0rtlife

took measurements off the xb2 as i had time and right now im going to say that i think its too wide...i couldnt compare to the yaris but i could compare to the xb1 on the lift and its 5 inches wider at the lug pad....ill happly post the numbers later if you want

hell the springpockets are 6inches deep too!!!!..64ish wide

Yes please, post the measurements. I'd appreciate it very much.
Is the xB1's rear axle frame the same as the Yaris'?
Google says that xB2 rear track width is 59.8" and Yaris 57.5 - 57.9". xBs stock wheels and tires are 205/55R16 on 6.5 inch wide wheels, compare to Yaris 185/60R15 on 5.5 inch wide wheels.

[sh0rtlife]

Originally Posted by Neinris

Yes please, post the measurements. I'd appreciate it very much.
Is the xB1's rear axle frame the same as the Yaris'?
Google says that xB2 rear track width is 59.8" and Yaris 57.5 - 57.9". xBs stock wheels and tires are 205/55R16 on 6.5 inch wide wheels, compare to Yaris 185/60R15 on 5.5 inch wide wheels.

ok so all of this is off of an 08 xb

these numbers are tricky as hell to get with the axle in place..so they are kinda rough and somewhat eyeballed

center of hub to top of caliper 6.5 +.5 hump at bleed screw
3 inch body mount bushing
centerline of body mount bolt to centerline of the hub 15
lugpad to lug pad 63.5(they seem to be fixing the track with wheel offset?)
spring pocket base to top of axle 5.5 inches deep
body mount bolt head to hub face centerline 8
outter edge of body mount to mount seems to be about 47..its hard to get exact with the fuel tank in

honestly im waiting to find a yaris and an xb in the same yard ...then i can pull em both set em next to eachother and see, hell i can even see if it bolts in.....we know the hubs do

[Neinris]

Originally Posted by sh0rtlife

ok so all of this is off of an 08 xb

these numbers are tricky as hell to get with the axle in place..so they are kinda rough and somewhat eyeballed

center of hub to top of caliper 6.5 +.5 hump at bleed screw
3 inch body mount bushing
centerline of body mount bolt to centerline of the hub 15
lugpad to lug pad 63.5(they seem to be fixing the track with wheel offset?)
spring pocket base to top of axle 5.5 inches deep
body mount bolt head to hub face centerline 8
outter edge of body mount to mount seems to be about 47..its hard to get exact with the fuel tank in

honestly im waiting to find a yaris and an xb in the same yard ...then i can pull em both set em next to eachother and see, hell i can even see if it bolts in.....we know the hubs do

Yeah, I think it's better to just compare them side by side.

[sh0rtlife]

Originally Posted by Neinris

Yeah, I think it's better to just compare them side by side.

pretty sure they are..but...is a sedan and hatch the same beam?
what about the XA beam?
what about echo?

im asking specificaly as my most local yard has an 09 xb and an xa

and i know of another yard that "might" have 08 xb and a sedan..tho said sedan might be an echo?....

basicly trying to find alternative units that are the same unit to use as comparisons...since yaris, and xb dont seem to show up at the same time or be around long enough to overlap

[sh0rtlife]

local yard has an XD and an XB1 hitting the yard soo...so if they hit while the XB2 is still in the yard i can compare those if we can verify that either of them is the same as a yaris

on a side note..since i had to pull a hub off the xb2 out there....i made a note, if someone wanted discs on a quick n dirty you could cut off the axle ends, grind em flush, get longer bolts, and just sandwich those plates into your existing axle tube..giving you 1/2inch offset and disc brakes all in one fell swoop....the hubs are just long to still locate thru the new flange and into the one still welded to your axle

now i need to find a 4x100 version to do some 14innch wheel clearance tests!!!!!!....prius's are NOT hitting my yards and i was unde rthe impression thats the only place to get the 4x100 factory discs(aside form a yaris RS which may as well not exist)

[Neinris]

Originally Posted by sh0rtlife

local yard has an XD and an XB1 hitting the yard soo...so if they hit while the XB2 is still in the yard i can compare those if we can verify that either of them is the same as a yaris

on a side note..since i had to pull a hub off the xb2 out there....i made a note, if someone wanted discs on a quick n dirty you could cut off the axle ends, grind em flush, get longer bolts, and just sandwich those plates into your existing axle tube..giving you 1/2inch offset and disc brakes all in one fell swoop....the hubs are just long to still locate thru the new flange and into the one still welded to your axle

now i need to find a 4x100 version to do some 14innch wheel clearance tests!!!!!!....prius's are NOT hitting my yards and i was unde rthe impression thats the only place to get the 4x100 factory discs(aside form a yaris RS which may as well not exist)

The mounting plates my friend made me is the quickest and dirtiest way for a rear disc conversion. LOL!!!
I'm sorry I could not find a 14" wheel to try and see if it'd fit, but I'm not sure that it'd be big enough. Unless the mounting holes for the caliper bracket are moved in closer to the center of the hub, probably 10mm??? But you might have to mill down the rear rotors as well to make them fit.

[sh0rtlife]

so for the axle comparison..are you 100% sure the xb1 axle is the same as a yaris...ive only eyeballed them but my eyes are telling me they are not the same...the xb1 actualy looks more "delicate" than the yaris unit

currently in the yard neer me is an xb1, xa, xb2, and an XD pending.....no yaris

[Neinris]

Originally Posted by sh0rtlife

so for the axle comparison..are you 100% sure the xb1 axle is the same as a yaris...ive only eyeballed them but my eyes are telling me they are not the same...the xb1 actualy looks more "delicate" than the yaris unit

currently in the yard neer me is an xb1, xa, xb2, and an XD pending.....no yaris

I was actually asking the same thing, if the xB1 is the same as the Yaris, but I know that the xD is the same as the Yaris.

[sh0rtlife]

Originally Posted by Neinris

I was actually asking the same thing, if the xB1 is the same as the Yaris, but I know that the xD is the same as the Yaris.

theres 2 xd's "pending" they have been racked n drained..so i just hope they get out in the yard befor the xb2 goes

ive verifyed the XB1 is NOT the same as the yaris, after looking at the echo it "might" be the same as the echo, checked the XA and it looks to also be the xb1/echo style, but again the spring pockets were different

since i have an xb1 on the lift ive compared it to the yaris and can confirm its NOT the same, tho ive not checked the measurements, its visualy different both in how the unit looks but the spring pocket size and depth...

thats not to say it couldnt be a bolt in.....

next chance i get tho im going to get out to the yard and pull the XB2 axle and atleast stash it in the XB1...and i may see if it bolts up...

im currently checking the yard every couple days waiting on the XD's...i want all the engine swap bits!!!!

yes i currently own 07 yaris, 08 xb, 06 xb.....so im kinda lookin to see what tweaks i can do to the xb1 as well.....

something of note tho..the xb1 looks to have alot of built in rear camber...if someone were looking for camber that would be a way to get it if the arms swap

[Neinris]

Originally Posted by sh0rtlife

theres 2 xd's "pending" they have been racked n drained..so i just hope they get out in the yard befor the xb2 goes

ive verifyed the XB1 is NOT the same as the yaris, after looking at the echo it "might" be the same as the echo, checked the XA and it looks to also be the xb1/echo style, but again the spring pockets were different

since i have an xb1 on the lift ive compared it to the yaris and can confirm its NOT the same, tho ive not checked the measurements, its visualy different both in how the unit looks but the spring pocket size and depth...

thats not to say it couldnt be a bolt in.....

next chance i get tho im going to get out to the yard and pull the XB2 axle and atleast stash it in the XB1...and i may see if it bolts up...

im currently checking the yard every couple days waiting on the XD's...i want all the engine swap bits!!!!

yes i currently own 07 yaris, 08 xb, 06 xb.....so im kinda lookin to see what tweaks i can do to the xb1 as well.....

something of note tho..the xb1 looks to have alot of built in rear camber...if someone were looking for camber that would be a way to get it if the arms swap

Thanks for all the ongoing research. I really really appreciate it, and I'm sure others who would want to know about an alternative rear axle frame for a rear disc conversion.

Please continue the hard work.