AE25 Posted July 10, 2009 Share Posted July 10, 2009 tup bought that G series gx71 GT trd diff for his gx71 1jzgte. he had a rebuilt std F lsd with escort center clutch plate in it before that. that altezza diff pic above fit live axle fine. bought of TM for $500ish shipped. is actually an aftermarket kaaz 2way. fitted myself into live axle housing and works a dream. the altezza torsen F series carrier is slightly wider.. but has a different bearing that comes out the same width as a std F diff. around 150mm from memory. so swap the torsen lsd with altezza side bearings and it fits fine. i have not got round to completing this but plenty of people have in aus in ma61's. oh another thing on the std F series lsd. there are two types. the IRS and Live Axle versions are NOT the same. the irs version only work on one plate each side (crap!) whereas the live axle van diff use all 3 each side. the plates are different between them. yes you can swap the live axle plates across. im having hard time trying to source them through toyota at the moment as they don't recognise their own part numbers and have now drawn up the tooth'd plate to remanufacture myself. apparently the escort english lsd diff has a usable plate similar in design to the F van lsd which is what tup got put into his rebuilt F irs lsd. has anyone seen proof of an estima with an lsd? ive checked plenty incl supercharger one and yet to find one. the van diff come in the 4wd cr30, yr30 and variations of the 30 series townace/masterace. they dont come in liteace van. also come in a toyota truck... can't remember which tho.. was like a ym60 chassis. Quote Link to comment Share on other sites More sharing options...
sheepers Posted July 10, 2009 Share Posted July 10, 2009 hey Mark, have you got any definite answer as to what that diff i have in my shed is???? do you still think its TRD? i haven't looked at it since you were here to be honest. Quote Link to comment Share on other sites More sharing options...
AE25 Posted July 10, 2009 Share Posted July 10, 2009 i know its not a std one would have to compare pics to confirm. is it any of the ones shown in the bottom of this thread? no point double posting it eh http://www.toymods.net//forums/showthread.php?t=14640 heres some online toyota diff repair manuals http://www.toymods.net/forums/showthread.php?t=13882 Quote Link to comment Share on other sites More sharing options...
smokin' joe Posted July 14, 2009 Share Posted July 14, 2009 Hey Mark, what ratio does the altezza come in? lokking for 3.7 or 3.9 but can mix rolling raduis of tyre to correct. going behind 3.8 V6 and T5 Quote Link to comment Share on other sites More sharing options...
AE25 Posted July 14, 2009 Share Posted July 14, 2009 usually 4.1 or 4.3 on altezza. my kaaz had a 4.55 but don't think it was a factory option. 3.9 most common in gx61 mark2, grande, chaser etc with IRS. 3.7 a bit harder to source. came in ma61 celica-supra. seen one in a supercharged tz estima van too. ive seen a 3.5 in a non turbo ga70 supra.. one of the hardest to find. estima are common as but almost always have 4.3.. theres a 4.1 estima at takanini pickas at the mo tho. Quote Link to comment Share on other sites More sharing options...
Crownin_Round Posted July 15, 2009 Share Posted July 15, 2009 Ive got 4.55 ratio floating around if anyone wants crazy accel lol, had 4.7 and that was a factory ratio, Im after 3.1 F series though Ive seen it in a Gx61 F series IRS Quote Link to comment Share on other sites More sharing options...
AE25 Posted July 15, 2009 Share Posted July 15, 2009 now that would be a first! sure it wasn't a diff code F312 which = 3.9:1 ratio Quote Link to comment Share on other sites More sharing options...
Crownin_Round Posted July 15, 2009 Share Posted July 15, 2009 Oh Im sure! Ive had "alot" of experience with Toyota diffs and ratio's, I think its was either F372 or 382 Gx60 1g w55 IRS F series which in itself is quite rare! Quote Link to comment Share on other sites More sharing options...
Spencer Posted July 16, 2009 Share Posted July 16, 2009 Need photo evidence dude, think about how a 1g would go with a 3.1. The EPC says no Quote Link to comment Share on other sites More sharing options...
Crownin_Round Posted July 16, 2009 Share Posted July 16, 2009 1g-g.. Missed a g...160ps wouldnt have that much trouble bro esp seeing it was balanced out a tad with a w55, someone when ordering the car was probably like "I want to go 260kph easy down the wangan" and bam "crazy diff has been inserted in your brand new Toyota sir" Quote Link to comment Share on other sites More sharing options...
Spencer Posted July 16, 2009 Share Posted July 16, 2009 still a torqueless wonder would be horrid at 100km, and they barely wind off the clock as is. Especially a first gen analouge injection job Quote Link to comment Share on other sites More sharing options...
Crownin_Round Posted July 16, 2009 Share Posted July 16, 2009 Yeah not the flashest engine, go good in a DX though! Quote Link to comment Share on other sites More sharing options...
AE25 Posted July 16, 2009 Share Posted July 16, 2009 Ive got 4.55 ratio floating around if anyone wants crazy accel lol, had 4.7 and that was a factory ratio, Im after 3.1 F series though Ive seen it in a Gx61 F series IRS hey wasn't saying these ratio's don't exist.. was meaning didn't think it was a factory option in the altezza. that was what the lexus/altezza club guys were saying when i asked about it. i've seen F series 3.5 - 4.77 in the rear of cars/vans.. and i'd imagine the hilux IFS come with F series crown/pinion in 4.9, 5.1 ratios etc so there's a fair few options available. 3.1 is a new one and rather distant to the nearest size up. the only 3.1 ratio i can find in the diff list is the 39 code so was it a F392? F372 exists for sure as does F362. seems alot of similar numbers that could've easily mixed up tho. then again ive yet to see a factory 1ggeu gx6#. every rwd toyota nut should know these off memory... ---------- code=ratio 37 = 3.58 30 = 3.73 31 = 3.91 29 = 4.10 28 = 4.30 25 = 4.56 36 = 4.78 14 = 4.88 15 = 5.13 (rounded to 2 decimal places) Quote Link to comment Share on other sites More sharing options...
AE25 Posted July 20, 2009 Share Posted July 20, 2009 hey sheepers.. i found some trd lsd pics. i think they're british. this is a selective G series lsd http://www.rhdjapan.com/jdm/TRD-Selecti ... upra-51645 which looks like same pic as a selective F series on that website. http://www.rhdjapan.com/jdm/TRD-Selecti ... GA70-51643 this diff varies in operation to the 1.5/2 way below. this one lists a heap of older toyota's like ta63, ra63, aa63, cressida, mark2, crown, soarer, supra, altezza etc. i guess a new lsd does't come with side bearings which is why they list the associated part number. still puzzled about side shaft difference? http://www.rhdjapan.com/jdm/TRD-2-Way-L ... tial-28697 but note how the side bearings and stub axles vary between the non lsd and lsd diffs. also the different bearings between certain models. so not all created equal. looks like the side bearing needs to match the carrier fitted whether it be lsd or not. the 6mm removed from side axle i can understand.. as the non lsd toyota axle have a bit of extra metal on the end... what gets me is the 'exclusive drive shaft required' and 'exclusive side gear shaft required'... the driveshaft i would assume is a different bolt pattern as seen on commercial diffs tend to be 85pcd instead of 78. maybe the non lsd differs from lsd models? meh redrill it if thats the case. the side gear axle is what i'd be interested to know about.. is there a different spline size? or does the 1gfe altezza/supra just have completely different internals or something? gx61, gx71, ta63, ma61 etc side gear shaft difference.. spline is same.. length varies Quote Link to comment Share on other sites More sharing options...
AE25 Posted July 20, 2009 Share Posted July 20, 2009 oh add this to the list of available lsd! TOMEI http://www.tomei-p.co.jp/_2003web-catal ... rset_2.htm the housings pictured at bottom of that page look like the kaaz hmmm Quote Link to comment Share on other sites More sharing options...
deaf_rattle Posted July 30, 2009 Share Posted July 30, 2009 anything F series.MA61 is the most popular. but they are not common, that "def rattle" was selling one a while back that was fucked, he still wanted moonbeams for it. they are around, you just have to keep your eye out for them. i guess youd pay 400-500 for a good one?? spence, what do you reckon? what you talking about? i havent sold any f series lsds for ages... and only sold good units. Are you thinking about the locker i sold? in which case it definately didnt go for "moonbeams" the lsd i sold about 4 years ago i sold for $400. thanks Quote Link to comment Share on other sites More sharing options...
rob Posted September 24, 2009 Share Posted September 24, 2009 ok.. i'm gonna dig up an old thread here. would someone who's swapped an aftermarket altezza lsd into an f-series live-axle be able to tell me what side bearings i need to use? i've got a complete altezza irs nugget which has had some sort of clutch-type lsd installed into it. i was hoping to be able to use the altezza bearings as they're probably at least 20 years younger that the ones that are currently in my live-axle diffhead... if it turns out that i have to use side-bearings specific to the live-axle head, does anyone know the part numbers? also i've read that you need to give your axles a bit of a trim if you're installing an altezza torsen lsd into a live-axle, but is this necessary when using the clutch-type diffs? tia Quote Link to comment Share on other sites More sharing options...
Spencer Posted September 24, 2009 Share Posted September 24, 2009 cant tell you what you bearings to use, Ive only dropped one into a IRS head used the standard tezza bearings. With the axles the torsen doesn't require shorter axles, its the clutch types that usually do, some don't though Quote Link to comment Share on other sites More sharing options...
AE25 Posted September 24, 2009 Share Posted September 24, 2009 side bearings stay with the carrier.. so if using altezza clutch lsd into live axle housing.. keep the altezza bearings. Quote Link to comment Share on other sites More sharing options...
rob Posted September 24, 2009 Share Posted September 24, 2009 thanks heaps for the info guys.. crazy, i could've sworn i read elsewhere that the clutch lsd's were usually sweet with the non-lsd axles and it was the factory lsd that needed them shortened slightly due to the torsen centre being all full of gears n stuff ah well getting that done is no biggy.. cheers! Quote Link to comment Share on other sites More sharing options...
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