Trouble is, the axle I use is a Celica LSD type F, strong as fook, with bigger shafts than a 9" @32mm, gears are available at £600 a set!!!!!, with a bit of research I have found the axle is common to a few of Toyomotors, but the chance of finding what I want is virtually nill,
Bit more asking around and It seems the Supra indi rear has the same internals as my live axle
, both classed as "F" type either Indi or live, so far so good, then to throw a spanner in the works, my axle is a front loader, and the supra is a rear loader, part numbers cant tell me if the gears are interchangable as they have different ratios, But the supra does run better ratios, 4.3 and 4.1, which ratio do I want, I think I would prefer the 4.1, but somebody has offered me a diff with 4.3 gears less the LSD for the price of postage, trouble is they are in the Netherlands, 
Is it worth going for the 4.3s and trying them in my spare diff to see if they fit or do we think as a collective, 4.3 is too short.??????
). My concern would be that if you gear too low you end up with 1st to low and you have to change up before you have got going, and 2nd still too high to launch without bogging down. The other alternative is to put in a high first and second in the gear box and use the low rear diff and you end up with all the gears too close and you are in 5th 30 yrds off the line trying to climb onto peak torque and getting there 20 yards after you crossed it. Personally if you cant use bigger tyres then I would recommend the 4.1 ratio.
Gearing down should make the gap between 1st and 2nd less of a problem but idealy you need to find a higher first. I still think you may find the 4.1 the best bet if you can't sort a higher first gear.
