Outer Limits 4x4 Board

I'm struggling to decided which diff to use in my coil conversion, i want width that the 80 will offer but the strength and cost of 60 is pulling me towards them.

Its going in a hzj75 series with most likely a 5 link front and a double triangulated 4 link in the rear. Any advice would be great and anyone know the width of the 60 compared to the 80?

go 80 diffs.

i run them with 42s and a 5litre v8. they love it.
but i do slow speed stuff.

I think the offset of the 60 diff makes a 3 link difficult, you
may have similar problems with the 5 link.

5 link would be fine, plenty of blokes run them in 4 Runners and Surfs.
3 link it would be a bit more difficult, but not by much.

The front output shaft from the transfer would probably be a bit of a deciding factor too, should be no dramas on th rear though to have an unusual offset diff.

I think the width of the 80 series would be a big plus, but as you say 2 x good 60 series can be had for as little as $400.


Cheers

maybe you can go a coil front end out of a 79 series so it dont stick out to far for legal road use and use a 105 series rear diff

yeah the width is the only thing leaning me to 80s, found out that they are 3 inches in total narrower than the 80 so was thinking of running 1 or 1.5 inch wheel spacers to make the difference, yeah the drive shaft and diff centre is the only real major concern with the front, i guess i can always just get the diff lined it up and see if it will work.

it will just be a weekend play too and local comps so wont see the road much, didn't want the hi pinion diff centre as i have already done the original diff centre and didn't want to keep doing them in the future.

Found a few 60 diffs with centres for $400 so going to have a look at them.

So my new question has anyone put a 60 diff under a 75 and how they went about matting the drive shaft to it as i assume that the flange on the 60 diff will be larger compared to my large on the hi pinion

as well is running 1 or 1.5 inch spacer really that bad and how much extra strain will it put on the nears, it wont be doing many k's so Im hoping i would have any major issues

stop fussing around like an old woman and just use 80's diffs, trust me.

so what is the widths of the diffs in question, anyone know the flange to flange lengths of 60 75 and 80 diffs, front and rear is there any difference??

any specific measurements??

you could put hilux ifs hubs on the 60 fronts for the extra track, and im sure theres something for the rear

Thommo 73 wrote:you could put hilux ifs hubs on the 60 fronts for the extra track, and im sure theres something for the rear

80 hubs on the rear will increae track too

dont know how the brakes will work then though.

perhaps 80 rear with 60 front and IFS hubs.

i think snake do a kit for the ifs hubs, just a 30mm spacer for the disk, rear i think most go to disk conversion

Just go with 80 diffs! Plenty of people have done it and im sure there will be plenty of info out there to help you along the way!

cheers guys for all the input, i have decided to go 60's for the strength and price and are picking up a set this afternoon, i will definitely look into adding a bit more width to them down the track.

horndog wrote:I'm struggling to decided which diff to use in my coil conversion, i want width that the 80 will offer but the strength and cost of 60 is pulling me towards them.

the strength of the 80 can be fixed with aftermarket gears and a locker
the 60 series has much smaller and weaker cv's than the 80
so go the 80

thrashlux wrote:

horndog wrote:I'm struggling to decided which diff to use in my coil conversion, i want width that the 80 will offer but the strength and cost of 60 is pulling me towards them.

the strength of the 80 can be fixed with aftermarket gears and a locker
the 60 series has much smaller and weaker cv's than the 80
so go the 80

thankyou

thrashlux wrote:

horndog wrote:I'm struggling to decided which diff to use in my coil conversion, i want width that the 80 will offer but the strength and cost of 60 is pulling me towards them.

the strength of the 80 can be fixed with aftermarket gears and a locker
the 60 series has much smaller and weaker cv's than the 80
so go the 80

set of 30 spline longfields solves the CV issue.

I didnt realise that about the cvs thrashlux but was going to run long feilds anyway no matter what diff, i picked up the 60 diffs today and started stripping off the old mounts so i guess ill give the 60s a go. thanks for the input, if i had alot more money i would go 60 centre with 80 wings welded to them to have the best of both worlds, least doing 60s now i already have the centre and the locker if i decide to do this down the track.

Cheers