Thread: GEARING

Set of diff centres out of a Stage 1 would give you 3.54:1 with the correct spline count.

Rgds
Pete

The front diff is easy - just a RR or D1 diff, but the rear is more difficult - changing the diff is not as simple, and you are limited to a CW&P out of a 110/Defender or a complete rear axle out of a Stage 1 (rare). (Or replace the rear axle with a Series 2a Rover diff and be careful about the axle shafts!)

The down side of the higher ratio is that you don't have as good a "creeper" gears in low range.

I am not sure which engine you have, but my feeling is that the higher gearing is not all that necessary for most users. If it is either of the Rover Petrol engines, they are quite happy with standard gearing at 100kph, if the diesel, you are flat out pulling higher gearing. And if you think the noise is excessive at that rpm, I suggest finding out why - they don't have to be!

If you have a Holden engine, then yes, the gearing is unsuitable, and probably the higher ratio diffs are what is needed.

John

Originally Posted by JDNSW

The front diff is easy - just a RR or D1 diff, but the rear is more difficult - changing the diff is not as simple, and you are limited to a CW&P out of a 110/Defender or a complete rear axle out of a Stage 1 (rare). (Or replace the rear axle with a Series 2a Rover diff and be careful about the axle shafts!)

The down side of the higher ratio is that you don't have as good a "creeper" gears in low range.

I am not sure which engine you have, but my feeling is that the higher gearing is not all that necessary for most users. If it is either of the Rover Petrol engines, they are quite happy with standard gearing at 100kph, if the diesel, you are flat out pulling higher gearing. And if you think the noise is excessive at that rpm, I suggest finding out why - they don't have to be!

If you have a Holden engine, then yes, the gearing is unsuitable, and probably the higher ratio diffs are what is needed.

John

yeah sorry it is a blue 202 holden & it revs its clack out round town.it will be used offroad aswell throw...

providing you can deal with the loss of the bottom end crawl off road drop in the rover 3.5 ratio diffs.

you can get 4.1:1 ratio CWP sets to fit the rover and sals diffs which seem to be a good combo on the holden powered series rovers.

providing your willing to wear the hurt of loosing four wheel drive you can change over one at a time if you need to as a cost saving measure and if you do this remove the front propshaft as soon as you have one changed over.

Originally Posted by Blknight.aus

providing you can deal with the loss of the bottom end crawl off road drop in the rover 3.5 ratio diffs.

you can get 4.1:1 ratio CWP sets to fit the rover and sals diffs which seem to be a good combo on the holden powered series rovers.

providing your willing to wear the hurt of loosing four wheel drive you can change over one at a time if you need to as a cost saving measure and if you do this remove the front propshaft as soon as you have one changed over.

THANX dave CWP is that crown wheel & pinion.
are they hard to get can i get them 2ndhand ...

I guess that if you have a Holden motor, then you really do need to change the gearing. Changing the crown wheel and pinion in a Salisbury is not exactly simple for an amateur, though, and as I commented, the Stage 1 axle is not easy to come by.

If you are short of funds, I would be inclined to get a 2a rear axle and put 3.54 RR or Disco 1 diffs both ends. This would be the cheapest solution, and no more than a weekend's work either (depending on how many nuts you have to cut off!). I recognise that the Salisbury axle is a lot better than the Rover one in a lwb, but provided it is treated reasonably it should not be a problem (my 2a 109, often heavily loaded and/or towing offroad) has been 13 years since busting a diff, and has never broken a halfaxle - and I have spares.

John

Originally Posted by JDNSW

I recognise that the Salisbury axle is a lot better than the Rover one in a lwb, but provided it is treated reasonably it should not be a problem (my 2a 109, often heavily loaded and/or towing offroad) has been 13 years since busting a diff, and has never broken a halfaxle - and I have spares.

John

No John thats BECAUSE you have spares

or chuck in a disc to disc set from a p38 after cutting off the fancy coil spring mounting stuff and welding on the leaf mount plates.

you can occasionally get the CWP sets second hand. new is better tho.


linky and linky2

oh I should also mention that the sals 8ha is the english brother of the american dana 60.