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I've got the LWB clocks in and I've verified the speedo using GPS. It tops out at 67mph confirmed by my GPS unit, the noise isn't that bad in 4th - 3rd gear gets very noisy as I have to rev it quite a lot to build enough speed up for fourth to be in the right power band. I can change up to fourth earlier to avoid over reving it but then 4th takes longer to get going. At the end of the day the LWB landrovers all had 7.50x16's on as standard and as far as I know they had the same gearboxes - and if they didn't please let me know as I've got a few of them lying about! I don't want to go any faster than 70mph because the steering goes too light and wandary and the brakes would take about a week to slow down!

I know what you mean about the tyres, but it had a set of 205's on when we got it, we added the 7.50's because we use it off-road. I would say the engne was still fairly powerful as it performs really well off-road, and cruises well at 65-70mph on the motorway. It also pulls well in every gear but it just seams a big jump between 3rd and 4th. I think the overdrive option is the best idea as it would give me a gear half way between 3rd and 4th and it would also give me a further gear for cruising at. I think my plan will be: 1 - swap the box out for another series box probably older 2 - then rebuild the suffix D box. 3 - put the D box back in and then add an overdrive box

I've just been going through the Haynes Manual trying to work out which gearbox is best for ratios etc. I currently have a Suffix D Series 3 Gearbox. My father in law has 3 or 4 boxes lying around. My problems with the Suffix D box are: a - it's noisy b- the syncro on 3rd is very bad, and 4th isn't great c - there is a huge difference between 3rd and 4th c - is the bit we're trying to sort by choosing the best box. At the moment you have to over rev it in third to get decent performace in 4th. If you don't over rev it in third then in just lulls before getting going again in 4th. This is more noticeable on hills. The vehicle is a SWB 2.25 5 Bearing Diesel with 7.50x16 wheels on it. Is there a combination of transfer box and gearbox that is best?? Any suggestions would be great

Not convinced with Parabolics, a friend has them fitted. Rocky Mountain ones which I think are quite good. They seem fine when the landrover is empty (but nothing special) but get a bit of weight in and they are carp. I was more impressed with a new set of standard springs

Thanks for the tips, Bill - nice idea but they are the right way round. Brakes in reverse are very worrying! As we rebuilt them we did one wheel at the time, so it was only off one end at a time, no chance to mix them up. RPR - Don't get me wrong the brakes do work. If I'm on level ground I can bring it to a stop with just the brakes alone, I can lock the wheels up on gravel but not on tarmac. If I'm going down a steep hill on the road I have to use engine braking as well. My Uncle has a series 2A LWB which has had a servo and vacuum pump fitted and that stops as well as my car! Even after going through water whilst off roading. The brakes are all adjusted correctly. If I adjust them up at all then they bind on. So they are all 1 click back off from that - the haynes manual said to take them 2 clicks back but they didn't work as well then. When I do brake as hard as I can it brakes in a straight line, and there is no feel of ABS. I've identified that the servo isn't working so that seems the best place to start! However you a probably right that they are working as well as a 2A without servo should work but having been in others with drums all round and seen how much better they can be - I've got to sort them!

I was just worried about sourcing another as the replacement might not work anyway! Thanks for all the help guys (and possibly girls) I'll have to upload some pics sometime

That's the system it's got. I've been looking into getting a peugeot vacuum pump from the scrappy as they're supposed to fit perfectly but at the moment it comes off the manifold and it does suck from there so that bit is working OK. As far as I know it's as "normal" as possible! It's a 5 bearing if that makes any difference. Has anyone tried the Servo rebuild kits??

It is the dual circuit brake system. I've checked the pipes and as far as I can tell there is no splits or leaks. Where is the pump? I thought it just used the pressure from the manifold and the bottle to hold vacuum??

I've got a 1984 Series 3 SWB Diesel 2.25 which is a great vehicle I use it occasionally on the road (once a week or so) and then I take it off road once a month were it out performs must of the stuff there!! Just got a couple of little problems/decisions. The main problem with the vehicle is the brakes. I've replaced all the shoes and the drums are all OK. I've adjusted the brakes and got them all setup right but the braking performance is still awful. It passed it's MOT but only by 1% on the test. It will stop but I wouldn't like to do an emergency stop! Once we've been through a bit of water whilst off roading they fail altogether I've done a good search on here and found the test for the servo. Pump it up until the pedal is hard then start the engine and it says the pedal should slowly drop to the correct position. Mine doesn't!! Mine just stays still. So what do I do from there?? I've seen rebuild kits on ebay for about a tenner - but I can't find any instructions! Are they hard to do?? I've also read on here that I could use an early 110 servo which would be better. Is that right - is it worth it? I've also seen that you can use a peugeot vacuum pump to really improve the brakes. Are they hard to fit? Do you need a different belt? I've also been reading about disc brakes - which I thought would help with the off roading. I've read that the back ones are dead easy on mine as I've got the 24 spline half shafts, but the front ones are difficult due to the length of the half shafts?? I don't want to spend a fortune on zeus ones or similar - just really wanted to use second hand parts. Are there any particular ones which are easiest to fit. Would it be any use having rear disc brakes and front drums - (seems backwards to me and could cause problems??) Ok that's brakes done! Now Gearbox... My gearbox is rather noisy and it doesn't like to go into 3rd from 4th, it just crunches - you have to wait for a few seconds then put it in. It's only annoying when going up a steep hill in 4th as when you come to drop down a gear you have to wait and lose all your speed. I've got a series 2 gearbox lying about but I don't know the condition of it. Am I best to rebuild the series 3, find another series 3 box to put in or put the 2 box in? Now suspension... There's nothing wrong with my suspension, I've got standard leaf springs but the PO modified the chassis to extend the spring hangers, which lifts the vehicle by about 2 inches. We've also put 7.50x16's on which lift it a little more. I'm fairly happy with that setup but I've got a set of unused but 3 year old springs with the extended military shackles on them. I was going to fit them as I thought the newer springs would be better just from being newer and I was contemplating the shackles but would it raise it too much?? Thanks in advance