autotecsheffield
New Member
I was on here with a different username but for the life of me cannot remember what, so I've signed up again.
I have a Freelander 1 V6 auto. I bought it cheap a couple of years ago with HGF. As an Ex MG-Rover tech (now run my own garage) it was a walk in the park, soon after the VCU seized up and the rear diff bearings went along with the mounts. I mainly use it as a load-lugger, I have a '05 Grand Cherokee for off-road duties so the prop (blanking plate fitted to IRD) and rear diff were thrown in the bin, as were the rear driveshafts, with the outer CV outer carriers left in place to support the rear wheel bearings. With a new set of road-spec tyres the difference was immense, far smoother and better mpg (good job with the V6!).
Lately I'd noticed the knock from the front IRD when cornering, and a slight drop in MPG. Seem's stupid replacing/rebuilding the front IRD when it is essentially doing bugger-all, so the engineer in me thought about a true FWD conversion. Lose the weight of the front IRD and hopefully gain a bit more MPG, I'm convinced I can get over 30mpg eventually! I could just throw in the towel, but I've sunk some money into it and I like a challenge.
With the IRD off, it reveals the double-spline diff arrangement in the box, so that scuppered my original hopes of using some modified Rover 75 V6 auto shafts and retaining the original gearbox. So, I've sourced a Rover 75 V6 auto box and a pair of 75 V6 auto driveshafts. The outer section of the original FL O/S outer driver shaft will require some machining and mating to the O/S 75 shaft once it has also been machined down to match. Also, as the splines are different, I can't just plop the N/S FL driveshaft into the gearbox, and the inner joint is different so today I need to press-off the inner tripod bearing and see if it has the same spline as the 75 shaft, which fingers-crossed will mean I can just plop the complete inner joint assembly from the 75 shaft onto the FL shaft, thereby saving time machining it.
All I need to do is check the wiring diagrams for the boxes, as the only difference is the fact that the 75's don't have the manual sequential option like the FL's do, the wiring plugs are the same though so hopefully it's all controlled by the gearbox ECU.
The other thing I've done is fitted MG ZS180 front manifolds and cat. My cat was mullered so it got the innards taken out and welded back up, it's MOT time soon though and I had the parts anyway. They also more free-flowing than the OE FL parts, which are restricted by the fact they have to wrap around the IRD. It has necessitated changing the sump to the ZS item, which means some small modifications to the lower steady bar and oil cooler. The exhaust system will need some slight lengthening but nothing too major.
My other slight modification is having the springs rewound. I'm looking for a drop of about 60mm. This is not for the purpose of looking like a chav, it's because I have 2 red setters, both with hip problems so reducing the ride height makes it easier for them to get in and out. I've tried those ramp things but they just will not use them!
FWD may not be everyone's cup of tea, but maybe this may be of help to some. I found it pointless to replace all the 4WD gubbins with replacements, which is still expensive 2nd-hand as the V6 auto stuff seems stupidly priced (and the reliability of the replacement parts will be a niggling issue), and I have a Grand Cherokee anyway. The car with the heads done, belts, gearbox, shafts, a set of tyres and the reworked springs will stand me at less than a grand, including buying the thing. Not bad for something with AC, leather, heated seats and plenty of room.
I shall upload some picture today when I spend a bit more time on it.
I have a Freelander 1 V6 auto. I bought it cheap a couple of years ago with HGF. As an Ex MG-Rover tech (now run my own garage) it was a walk in the park, soon after the VCU seized up and the rear diff bearings went along with the mounts. I mainly use it as a load-lugger, I have a '05 Grand Cherokee for off-road duties so the prop (blanking plate fitted to IRD) and rear diff were thrown in the bin, as were the rear driveshafts, with the outer CV outer carriers left in place to support the rear wheel bearings. With a new set of road-spec tyres the difference was immense, far smoother and better mpg (good job with the V6!).
Lately I'd noticed the knock from the front IRD when cornering, and a slight drop in MPG. Seem's stupid replacing/rebuilding the front IRD when it is essentially doing bugger-all, so the engineer in me thought about a true FWD conversion. Lose the weight of the front IRD and hopefully gain a bit more MPG, I'm convinced I can get over 30mpg eventually! I could just throw in the towel, but I've sunk some money into it and I like a challenge.
With the IRD off, it reveals the double-spline diff arrangement in the box, so that scuppered my original hopes of using some modified Rover 75 V6 auto shafts and retaining the original gearbox. So, I've sourced a Rover 75 V6 auto box and a pair of 75 V6 auto driveshafts. The outer section of the original FL O/S outer driver shaft will require some machining and mating to the O/S 75 shaft once it has also been machined down to match. Also, as the splines are different, I can't just plop the N/S FL driveshaft into the gearbox, and the inner joint is different so today I need to press-off the inner tripod bearing and see if it has the same spline as the 75 shaft, which fingers-crossed will mean I can just plop the complete inner joint assembly from the 75 shaft onto the FL shaft, thereby saving time machining it.
All I need to do is check the wiring diagrams for the boxes, as the only difference is the fact that the 75's don't have the manual sequential option like the FL's do, the wiring plugs are the same though so hopefully it's all controlled by the gearbox ECU.
The other thing I've done is fitted MG ZS180 front manifolds and cat. My cat was mullered so it got the innards taken out and welded back up, it's MOT time soon though and I had the parts anyway. They also more free-flowing than the OE FL parts, which are restricted by the fact they have to wrap around the IRD. It has necessitated changing the sump to the ZS item, which means some small modifications to the lower steady bar and oil cooler. The exhaust system will need some slight lengthening but nothing too major.
My other slight modification is having the springs rewound. I'm looking for a drop of about 60mm. This is not for the purpose of looking like a chav, it's because I have 2 red setters, both with hip problems so reducing the ride height makes it easier for them to get in and out. I've tried those ramp things but they just will not use them!
FWD may not be everyone's cup of tea, but maybe this may be of help to some. I found it pointless to replace all the 4WD gubbins with replacements, which is still expensive 2nd-hand as the V6 auto stuff seems stupidly priced (and the reliability of the replacement parts will be a niggling issue), and I have a Grand Cherokee anyway. The car with the heads done, belts, gearbox, shafts, a set of tyres and the reworked springs will stand me at less than a grand, including buying the thing. Not bad for something with AC, leather, heated seats and plenty of room.
I shall upload some picture today when I spend a bit more time on it.
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