How strong is a 12a box ???

[drutin]

howzit

no wont help with that, overfilling is only really for racing ie circuits drag racing, does help on the street

you could try castrol syntrax gear oil, dont know price over here but its amazing stuff, helps with gear engagement

hope helps
later
glen

[mpk490p]

Thanks its fine after 2 - 3 changes so ive never really worried about it!
Mark

[Don Pamponi]

I think mines ok, (cant really tell cos its SO noisy), but I would like a taller top gear.  Was thinking TII, but they dont go straight on aparently.  Would EGI have longer 5th?

[MikeLMR]

if you need taller gearing you really want to be looking at changing the diff ratio, most gearboxes will have very similar top gear ratio\'s changes are made by swapping out the ring and pinion.

[Rotary Freak]

The new derek 7.7 in the 1/4mile the fastest 12-A in the world

[Don Pamponi]

if you need taller gearing you really want to be looking at changing the diff ratio, most gearboxes will have very similar top gear ratio\'s changes are made by swapping out the ring and pinion.

I have a GSL LSD, can it be modded in such a way?  Also wouldn\'t that make 1st a bit steep too?  I\'m just after relaxed cruising & more mpg

[drutin]

howzit

re diff, depends what you want either top end or fast of the mark but loose some top end,
you can get 3.5,3.6,3.7,3.9,4.1,4.4 diff ratios are common there are others but they are usually aftermarket or expensive
if you have a bridgeport or jport you would want a 4.1 or 4.4

note you can use all gen 1, series 1,2,3 crownwheel pinions but the differentials are different ie series 1/2 are 24 spline axles and series 3 are 26 spline axles, you can change the side gears in the differential to suit your axles

series 4/5 turbo gearbox into gen 1 series 2/3 all you have to do is fit series 4/5 turbo flywheel clutch starter, make gearbox mount, make driveshaft with s 4/5 input yoke your away, extras on series 1 you have to modify gearstick housing forward and cut abit of the floor

hope helps
glen

[Don Pamponi]

I guess I\'ll stick to the 12A or EGI then!