P76

The Range Rover auto was the Chrysler 727 which was a 3 speed and never fitted to the Australian 2 door,the first of the 4 door vehicles got autos,post 86 they got the ZF 4 speed,which carried over into the Discovery models,the Range Rover originally had the 4 speed LT95 manual from the military 101 fitted into it and in 1985 got the LT77 five speed from the Triumph Spitfire in it,Leyland's way of a cheap 5spd,a little weak for the vehicle and it struggled when towing,I know,as I have a 85 LT 77 Rangie and a 99 Auto D1,so if the 77 dies it will get a ZF 4 speed in it,

Even though I worked for Leyland Aust. I had never seen a P76 Wagon,it looks like a base model,nice looking vehicle,and would have sold well,Leyland's demise was helped by the then Govenment's auto manufacturing policy,the "Button Plan" which stated that Australia could only support 3 manufacturers,(with a little help from Ford,GMH,and Chrysler) plus a lot of mis-management,but that is all water under the bridge now,Chrysler went,now GMH ,soon followed by Ford shortly after,our once thriving automotive industry will be gone.

Pre the Factory 3 speed auto there was a sizable Non factory conversion industry that used Borgy 35's with the Ford type T bar shifter (Chrome ends) where the Factory fit was all black and flat rectangular shifter.

Factory auto wasnt till the 4 doors.

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Originally Posted by tony66_au

My opinion on the square bore/stroked 4.4 is that it made more HP and revved cleaner than the 3.5 but really didnt make much more torque down low.

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The 4.4 still puts out far more torque than a 4.1 XF Falcon.

As for the BW 35 put behind a RR Classic, to me this is madness

There is a mob in Melb called Ritters. They are a very highly regarded independent RR/LR specialist.

Back in the early days of classics, they pioneered their own auto conversion and were smart enough to not use a BW box. They used a Ford C4.

I had an 83 with this.

I still stand by what I said. No V8 should have a BW 35 behind it.

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Originally Posted by tony66_au

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My opinion on the square bore/stroked 4.4 is that it made more HP and revved cleaner than the 3.5 but really didnt make much more torque down low.

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I rather doubt it will be low down torque that kills auto transmissions - I suspect it will be either maximum torque (breakage or excess wear) or just plain maximum power (heat, or lubrication failure due to excess load on ger teeth or bearings).

Irrelevant to this discussion, but note that this comment applies to V-8s and autos - by contrast, if you look at the reputation of the Isuzu, this will kill manual transmissions because of the low down torque, specifically by the torque pulses resulting from only four cylinders and a fairly light flywheel, plus this low down torque.

John

gear change quality that destroys most auto trans after over heating.
fitting internals out of the last sigma or an EFI XE, planetary output shaft and 3 bolt reverse band servo etc was the cheap rebuild in the 90's. the casing that's an issue with left hand controls and mixed combinations of oil cooler outlets. in a T bar P76 that's not an issue.


the last falcon ute fitted a BW 3 speed had an improved gearbox-final fling.
don't think it is labelled BW40. the output shaft is shorter.


I like the early hydrolic TH 700-R4 until you replace soft parts.


My 1993 3.5 disco I have to hold of the throttle to keep it mobile towing. the lack of torque was the reason I didn't keep it running , driving it hard till the auto temp light came on any up hill rise. In a P76 you slug it out on a hill and listen to the ignition rattle.


P/S I took my 88 out in the rural roads around the village to show the son storm damage. I was supprise that one hill in the falcon it didn't notice that the rover had to select 1st gear 35Km/h.-nearly went for low range. I often joked about the time our Bedford fire truck taking 45 minutes to drive the 10 km.

I'm not quite sure how this ended up in a "which gearbox should I put in my P76" subject.
I was a committee club member for more than 10 years. The amount of "mystique" and miss truths associated with the P76 is amazing. If I had a dollar for all the people that used to come up to us at car shows saying that their father or mate had or has a Force 7 locked up in a shed or barn, I could have actually bought one of the nine that exist today.

Someone mentioned earlier that there were 10 wagons made. Unfortunately, only 3 p76 wagons were made and only 1 survived after the company closure. They were all prototypes anyway and not quite ready for production.

Discotwinturbo, the p76 Rallye was a one-off dealer made special for the Sydney motor show. Unless your name is Bruce Rose, then you must be thinking of a different P76 model. There was nothing mechanically special about it, other than some stripes and Targa wheels and Force 7 steering wheel. It was a plain super v8 as was the Targa Florio model. The Targa did get an LSD though.

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Originally Posted by UncleHo

Leyland's demise was helped by the then Govenment's auto manufacturing policy,the "Button Plan" which stated that Australia could only support 3 manufacturers,(with a little help from Ford,GMH,and Chrysler)

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You are about 10 years too late with this comment, the "Button plan" came in the mid 80's.

I've just had a look at Leyland P76 v8 workshop manual , Capacity 4414cc( 269.7cu in ) Bore/Stroke . 3.500 in . bhp. 192 @4250 rpm. Max torque 285 lb/ft. @ 2500rpm . I always thought this should have been the motor for the Australian Range Rovers , It was a good engine in It's day . I have two of them , one in a 110 wagon , It's been in there for years now . So much better than the 3.5lt . Also have one in a 1976 Triumph Stag . Jim :)