shorter diff for ke70/ae86?

[Blaike]

hey,after a shorter diff for my ke70 ,im after something around 50mm shorter than standard ke70 borgy

from research ive found that ta22 aus spec is 1365mm as opposed to ke70 1410mm ,can anyone confirm this???

any diff in the same stud pattern (114.3) would be great,although anything weaker than a ke70 borgy is out of the question

getting an r31 shortened seems like my best bet...

cheers, blaike :)

[Sam-Q]

TA22 is 1370, ke is 1410

How tough does it need to be? how about shortening a ra40 T-series?

[Blaike]

looking into r31 diffs shortened for 1200 datsun, as they are 1310mm and reguarly for sale
i could just put my borgy mounts onto it

whats the benifits of an ra40 t-series?

[Sam-Q]

R31 is 1470mm

The benefit of the RA40 diff is it has a fabricated housing with a bolt in center. Unlike the R31 which has a big cast center with axle tubes pushed into it. Not only does this make them harder to work on but it also makes them heavy for what they are. The RA40 should be readily available and you have lots of choice of LSDs. Maybe RA60 is a better option, bigger brakes?

Anyway have a read of this:

http://s-86.com/article_r31diff.php

[Blaike]

just read throught that article,cheers sam
seems like a massive effort now
a ta22 diff would be a perfect length for me
now to just find one haha

[Sam-Q]

I have a housing, don't know if I have the axles to suit. Send me a PM

[Jacobxxx]

The main question is why?

[Blaike]

diff is on its way out and would rather a shorter one to be able to go lower on my 8.5's...

[Still Steppin]

soo...your going to go with a 20mm reduction in each side, then use spacers to push the rims back out? seems kinda counter intuitive...

[Blaike]

lol.what?
no.i want my wheels 20mm in on both sides ,not goin to use any spacers.....
just so i can go lower on my 8.5 -7

[drift kid]

Push the guards out/smaller Tyre/more stretch, seems like a mountain of work to get the car lower

[Blaike]

guards are pumped out the the max basically,has a 175/60 on and 8.5 ,wouldnt go any smaller than that
not quite a mountain of work,would take the same time to just front archs on rear

[Still Steppin]

front archs on rear seems like the better plan in my head...how low are you trying to get it?

[drift kid]

Yeah and fatter guards will always look tougher than less track

[s13 james]

Man do the guards,changing your diff to rail 8.5's is whack,also 175 60 is stupid on a 8.5

[Blaike]

i am not doing the guards! i dnt think its worth having to get a respray when the original paint is clean and looks good

i dnt see how its wack just replacing my recked diff with a shorter one ...

so its either i pay like 1000 for a shorter diff and be done with it

or pay 1000ish on a t-series plus guard work and respray..

i dont want wider guards either,not a fan of the front on rear look

yer,the 175's on the 8.5 look stupid! but cool at the same time haha

[Blaike]

So I've found a ta22 t-series ..

Do they bolt straight in with just an ae86 tailshaft?

[drift kid]

But you have already pumped the guards to the max according to you? This would require paint anyway, do what you want but I don't like the idea

[dove grey 64]

Youd have to use the same combo tail shaft as any other t series. Pinion flange may or may not have the same pcd holes as your tail shaft flange.

[Blaike]

god.the thread is about info on shorter diff options.....
not a dicussion on my guards.

pumped to the max without major paint loss****
if you seen the car in person you would understand man

anyways back on topic....

apparently a ta22 diff will bolt straight in,just need a longer panhard,i have an adjustable one so that shouldnt be an issue

[Blaike]

yeah dovegrey64, ive heard of people using a t18 rear half of tailshaft to suit the pinion flange

[dove grey 64]

Im keen to see if you have issues with the strut and spring perches. Could be in the wrong spot? Also I think I read somewhere that the ta22 axles have the smallest/weakest bearings

[Blaike]

yes,ive also seen that the bearings are weak,but this was people using the original bearings ...

i plan to rebuild the diff and replace all the old stuff

apparently spring and strut perchs are slightly more inwards compared to a ke70 diff,but has no affect on fitting

[Delazy]

Pretty certain the trailing arms don't quite line up either...so will wear bushes quickly

[Jacobxxx]

Pretty certain the trailing arms don't quite line up either...so will wear bushes quickly
All sounds like the same effect as putting an ra60 t series in, should be gravy

[Blaike]

just the top trailing are mounts are further in, rose jointed trailing arms can solve the bushing wear problem tho

[haveaparty]

Rn25 hilux diff is shorter then Ke diff. Almost unbreakable. Will need to custom mounts like a skyline borgy and getting redrilled to 4 stud only cost me $150.

[Blaike]

Rn25 hilux diff is shorter then Ke diff. Almost unbreakable. Will need to custom mounts like a skyline borgy and getting redrilled to 4 stud only cost me $150.


how much shorter are they?

[Sam-Q]

with a shorter diff you could run a wider tyre and have better handling. What people seem to forget is that a stretched tyre compromises that.

[drift kid]

No worries dude, I just believe that all options should be considered before a decision is made, especially a large one such as this, I know that if I was faced with this predicament I would like to go through every single option first, I wish all the best with your conversion :)

[haveaparty]

Pretty sure that rn25 is 1365

[Blaike]

well i put my ta22 diff in.

everything lined up exactly how the borgy did,panhard bar needed to be extended about 50mm,mint

used and 86 tailshaft,the ta22 handbrake cables dont work tho as there equal length on the ta22 and ke70 is un-even length,ill try use the ke70 ones on the ta22 diff

my 14x8.5 -7 sit about flush on standard guards,could even tuck rim if i wanted to pump the guards alittle more

i also have to sort out swaybar mounts as ta22 dosnt have one ,easy job tho
ill have to get some photos in daylight

[sundee]

Got pics of fitment?

I'm assuming you want the car completely railed?

It just seems like something's up.. Having flared and rolled guards, standard diff, and only 8.5 neg 7. And 175's

You should be having no Clarence issues... Unless your 8.5's are 17" or larger...

Post some pics if u can.

[Blaike]

ill get some pics tomorow

not after mega low,just wanted the wheels to fit and still be functional.

this is how they fit with standard diff,wasnt even on the spring,just guars sitting on wheel.... wouldnt work

http://www.ae86drivingclub.com.au/dcimages/6/4/1/5/514021.jpg (http://imageshack.us/photo/my-images/20/qf6m.jpg/)

http://www.ae86drivingclub.com.au/dcimages/6/4/1/5/514017.jpg (http://imageshack.us/photo/my-images/15/06em.jpg/)

[sundee]

Are you 100% you got your offset spec right?

Looks like more - 17 then - 7

I could even bet my life they are up around -20

You won't fit wheels of that offset without a front on rear conversion or bolt on flares .

They poke as much as 10 neg 12 super lites

Which is about right because the outer is only 6mm wider.

[drift kid]

Fuck that looked tough as hell

[Jimmee1990]

I would double check that, I'm not so sure the trailing arm mounts are close enough to where they should be. I know RA40 T series diffs (which is almost identical to a t18 series 2 diff) won't bolt straight in to a TA22 as the trailing arms would be on a terrible angle and destroy the bushes.

[Blaike]

well i didnt get measurments of the trailing arm mounts but there is no angle at all! literally just slide the bolts in too,ill have to get sum measurements sometime to mythbust it

they do look like lower offset than -7 i do agree.will also have to just measure them and find out,cheering if im tucking -20 ish haha

[Blaike]

bad angle photo but yeah, could go about 40mm lower with good clearance still

URL=http://imageshack.us/photo/my-images/194/9ura.jpg/]http://www.ae86drivingclub.com.au/dcimages/6/4/1/5/514462.jpg[/URL]

[dove grey 64]

Heaps of difference, almost looks too narrow now lol

[Blaike]

other side is less gap,im shit at adjusting panhards haha,it will look more suited when its lower i think.

checked my wheels,deffinatly 14x8.5 -7

[sundee]

bad angle photo but yeah, could go about 40mm lower with good clearance still

URL=http://imageshack.us/photo/my-images/194/9ura.jpg/]http://www.ae86drivingclub.com.au/dcimages/6/4/1/5/514462.jpg[/URL]

what have you done here? have you been playing with the panhard?

the fitment in the other pics you posted are way different...

can you post a picture of the left and right side with same panhard setting?

[sundee]

here is 15 x 10 - 12 and 205/50 with hand flared guards on an E7...

you cannot get any more flarage without fronts on rears...

pan hard is slightly out... but you get the idea...

http://www.ae86drivingclub.com.au/forums/showthread.php/5144-Project-Ksev/page20

[Blaike]

yeah joel my rears didnt poke that much with standard diff and flaring that much would have destroyed my paint

that last picture is with the ta22 diff, panhard is allmost centre,about 5mm off

my last picture with the ta22 diff looks like it has massive wheel to arch gap,just optical illusion i think,its about 10-15mm clearance

tomorrow ill centre it and lower it about 30mm,wheel to arch gap will be about 5 mm and should look more suited,hopefully

[sundee]

Looks like the TA22 diff will work for you then yeah?