Rover gearbox

[Dutch Paul]

Guys, I have a few questions if anybody can help me

Are all the Rover 5 speed gearboxes the same ratios?

If so is the following correct?
1st 3.321
2nd 2.087
3rd 1.396
4th 1.00
5th 0.833

I wanted to build with decent acceleration and low revving in 5th, so is it possible to keep the first 4 ratios the same and change the 5th ratio to something like 0.775 for example? (I realise that with such a low ratio it is possible the Rover engine might not manage, but that figure is just as an example)

And lastly, is a Range Rover gearbox any good for a cobra(I mean can it be converted to 2 wheel drive?). If so, is it worth the hassle(pros and cons I mean).

Thanks in advance

Just a thought

Paul

[russell_ram]

Paul,

first four ratios look correct, I think 5th in most 2WD boxes is 0.792.

Frieght Rover/Daf van V8 box has lower 2nd (2.132) and 0.770 5th. It is posible to mess around slightly with 2nd, 3rd and 5th gear ratios because the mainshaft gears vary slightly in different applications of the box and you can basically use any of the available layshaft (solid) sets. For instance 5th gear on the layshaft is bolt on and interchangable between the 36 and 37 tooth version - both run with the same 19 tooth mainshaft/output gear.

However, you are stuck (2WD V with only one suitable input shaft/constant pinion and one suitable output/main shaft.

A benefit of the Daf box, apart from the different ratios, is that it does not have a 'remote' gearchange mechanism but it mounts directly on the rear of the box. This puts the gearlever about 8 or 10 inches forward of the SD1 position.

As for changing a Range Rover/Discovery R380 to 2WD - yes of course it's possible and I have done it - but for you I would think it's highly unlikely to be a viable proposition. You will need to change for the 2WD bits (this is just the bits I can remember off hand!) clutch pivot pin, clutch arm, slave cyl, constant pinion/input shaft, mainshaft, gear selector shaft, rear output housing, gear change mech (totally different), rear output flange.

Russ

[macca]

paul
may be some help 5 spd after 1982 ratios vitesse definately LT77 are
5th 0.792
4th 1.000
3rd 1.396
2nd 2.087
1st 3.321

a vitesse ran a 2.85 diff ratio

diff ratio ideally should be 3.54 if poss with a rv8 3.5

[Dutch Paul]

Thanks for your help guys - I have the info I needed

And not a single mention of Dyson

Oops x( there is now

Just a thought

Paul