Outer Limits 4x4 Board

have owned 88 inch 2a for 15 years. it,s grown with the family. Mechanically i have always replaced worn out parts with new ones. this has kept the rover in reasonable condition all round. Currently in truck cab & well back form. off road and carrying capacity suits my needs. Highway running is marginal. with 10.5 x 31 x 15 tyres, std 4.7 diffs and rocky mountain o/drive i get 21mph per 1000 rpm in top gear. Depending on wind, gradient, height above sea level etc, the motor will, in this gear rev out to between 3600 to 4000 rpm (75 to 84 mph) Feul consumption is 16 - 18 mpg or 15.6 - 17.6 l / 100k.
http://evan.fileave.com/pict0011.jpg
Gear box has had 3 failures in the last 40,000 miles. Currently back to jumping out of 2nd & 3rd on overrun. The car produces 70 hp at the rear wheels on the lie detector.
http://evan.fileave.com/pict0006.jpg
My thoughts are vt 3.8l v6 147 kw @ 5200rpm 304nm @3600rpm
and automatic to adapt to the series transfer case. Then put in high ratio gearset in the transfer case to give me the same final drive ratio in h2 as present.

I would like to hear from anyone who has done this or has some input that would be useful in my planning stages.

i put a 1uz in my 2a but put coils and toyota diffs in at teh same time. I dont know how well it goes yet because other projects got in the way

If your goin the V6 path id look at fitting a LT95 from a rangie/S3 stage 1 as theres adaptor kits for the V6 to match up to it then use 3.54 diffs from a S3 stage 1 which will give you bigger brakes as well as constant 4WD

hi Turoa

i do not understand what (1uz) means?

did you use the series transfer case?

if so what adapter did you use?

Hi Chris,

I already have 11 inch power assisted brakes off a one tonne series three.

Also i was more interested in keeping the series transfer case and diffs as there always seems to be trouble with prop shaft lenght and angles.
When i replaced the springs last year they sent me a rear set for a 109 ( i forget the difference in leaves) but it sat higher and had major vibration issues. they swapped them over for the 88 inch rear springs and presto the vibration was cured. had no problems since.

If it is possible to keep the series transfer case then the only adapter required would be an auto to the series transfer case ?

another issue i believe would be the lenght of the v6 and auto for sump clearance of the front axle?