thegreatestben wrote:I believe Dave (Roman on here) has put an altezza Cusco unit into a solid axle F series which came from a RA40 I sold him.
Correct.
These are your choices really:
1. AE86 T series diff + aftermarket T series LSD
pros: Possibly narrow enough diff that you wont need to shorten it up for a starlet.
Lightest possible option with LSD, not sure about 5.1 but pretty sure you can get a 4.9 ratio.
Already disc rear, if that helps. 4x114 stud pattern
cons: Stupidly expensive to buy, if you can find one.
2. Celica/corona/carina T series diff
Pros:
Infinitely cheaper than AE86 diff
Equal lightest, cheapest option to get an LSD setup depending on amount of fabrication needed. 4x114 stud pattern
cons: Drum rear, wider overall, more likely to need shortening. (Although the cost of shortening is possibly less than difference in price to AE86 diff
)
3. RA40/RA60/etc F series live axle
Pros: Stronger than T series
Lots of final drive ratios easily available
Cons: Hard to find, I've got one in the car and one spare, after searching for freaken ages.
T series is strong enough if you're not breaking Es, unnecessary weight lugging around.
Is wider than AE86, so $$$ on getting diff shortened if need be.
Altezza LSDs are common, but torsen type so possibly no good for rally.
Gonna be $1200+ if wanting a brand new cusco or TRD LSD at last check, wouldnt be surprised if it cost over $2k all up to get setup for a starlet if you have to get someone else to do the fabricating etc
4. F series live axle from Estima/etc 90s van
Pros: Plentiful, cheap.
cons: Pretty sure they're all 5 stud
5. G series hilux 'LSD'
Pros: Stupidly strong.
cons: Stupidly strong to the point of overkill, and heavy. The 'LSD' is shitty and only has preloads.
Shimming up the LSD either makes it have the worst of both worlds of both a locker and open diff. Not reccomended
6. You and a gaggle of oompa loompas are sailing in a giant purple shoe, afloat on a sea of gold plated hens teeth and fossilized rocking horse shit.
A violent downpour of disco flavoured snozzle rockets capsizes your shoe, and you are knocked overboard, left clinging to a giant aglet.
Thankfully, a top hat wearing gentleman in a dirigible who was in the vicinity, rescues you and takes you on a journey to candy land.
Shortly after setting down, you find someone selling a TRD E series LSD which bolts straight into your diff and solves all of your problems with a minimal amount of fuss.
Precisely at this moment, you abruptly snap upwards out of bed in a cold sweat, and you realise that none of the above just occured, it was a dream. Of course it was!
You have a quiet chuckle to yourself as you realise how rediculous it was to think that you had just found an E series LSD for sale.
What I need to know is what types of LSD and ratios are available for an F series housing? Are they clutch type? how much for a good TRD unit? Im baffled by all the info on different toyota diffs, but i gather F series is the go... and whats the story with altezza head bolting in? Im after 5.1 ratio ideally, thats what i ran last year until i blew it up and it was mint. Running 4.5 now and it sucks, gearing too high now for the tight stuff.
