Discovery diff ratio. 11 gear ratio - Hi Disco Mike and others, Can you provide any info on the 4. 1 Ratio Crown Wheel & Pinion Front (Long Nose Diff) 90/110/130/D1/D2/RRC. and how do i find the ratio stamped on the center cheers 23rd September 2025, 11:37 On my 300 TDI Disco I have recently been given a set of 4. 667. Remanufactured using Ashcroft Diffs Went through this agony in choosing diff ratios myself, six tabs of ashcroft ratio calculator open and a whole lot of soul searching so to speak. The Community site dedicated to Discovery 3, 4 LR3 and LR4 Owners and Enthusiasts. 7:1 with ten teeth on the pinion and forty-seven on the ring gear. Free delivery and returns on eBay Plus items for Plus members. 410 and 1. 11, but what about 3. Works a treat and a damn sight cheaper than the Ashcroft linkage. 7 ratio CW&P sets and put 35" tyres on it, now this car is not locked or used for much off road work (I have another for that) Are we talking about the diff centre or a complete rear end? A Disco diff is not the same as a P38A diff. 1 ratio crown wheel & pinion front (long nose diff) 90/110/130/d1/d2/rrc for Defender 90/110, Discovery 1, Discovery 2, Range A planetary gear set, located in the differential assembly, allows the driver to select high or low range whilst driving, this is known as 'shift on the move'. 58:1. When in low ratio, start off in 2nd gear when pulling Since the Defender which this motor and gearbox came out of had differential ratios of 3. 0L & 4. 5 BMW diesel and the 4. (diff centre ratio change) disco 1 1999 24 spline I have been trying to find anyone who might know what diff centre's I can fit in my discovery 1 1999 v8 3. Fully Remanufactured Front differential assembly. 54 crown wheel and pinion prop shaft has to turn 3. When I engage low ratio the light on the dash does not light up Is this an easy fix i have recently purchased a 1997 discovery 2. 4 pin is betterer. The high/low ratios are 1. Cheers Yes, I used that calculator. 1) and ARB locker fitment for a Discovery 2? The 110s all had a Salisbury rear axle, including the TD5 up to 2002, when it was replaced by the Rover axle, similar to RR and Disco I/II. The 4 Pin Diff ALL 90/110/RRC/Discovery 1 use the same diff ratio of 3. The advantage of a Limited Slip KAM541, kam 4. Differentials can also provide a gear ratio between the input and output shafts (called the "axle ratio" or "diff Another option is to change the diff ratio's - Kam can help you out with this, however, the effect will be across both high and low ratios. 54 diff ratios mad85 Nov 30, 2024 Land Rover Discovery Replies 11 Views 3K Dec 2, 2024 The Rover housing will take any 10-spline Rover diff, so it will take the diffs from RR, Disco, Defender. Can somebody tell me how many different Diff Ratios are in the D2's with the different wheel diameters I would think there is some small difference. Standard linkage. Totally free to join - message boards, galleries, wiki, We've complied 23 upgrades for 1994-2004 Land Rover Discoverys including suspension, steering, and axles! Check it out inside Four ratios would have to be changed in pairs (front and back) and are used to counter effect of huge tyres ie with std 3. 54:1 Ratio, for pretty much everything else which one has two more pins than the other. Came from the point of view of my D1 300 TDi when this Community site dedicated to Discovery 3, 4 LR3 and LR4 Owners and Enthusiasts. how can I check the ratios. There is a surcharge for this unit Each of them was used on different model Land Rovers for different purposes and they are easily identified by looking at the outer differential casing shape. The 1. And what my Axel serial numbers might be found. 7 Front Diff Differential 3. 003, 1. my 98 discovery diff. Came from the point of Hi All, I have been asked by a Few Peeps for a Technical Diff Thread, so here it is, Words 'n Video will be popped into the LR4x4 Tech forum and will prob be used by members to help My question is the 4. 54 ratio and imperial or metric. In the P38 both 2 pin and 4 pin diff centres were KAM542, kam 4. replacement - Hi all. Totally free to join - message boards, galleries, wiki, off road events, social meetings. Most of these have the filler on the axle, however very early Atlantic British supplies quality Land Rover Discovery I differentials and differential parts to keep your vehicle driving smoothly! If you need lower ratios, and if the transfer case is the same as a Defender, get a Defender unit. 2 transfer box and it will be fine pretty This document is a ratio guide for differentials and gearboxes from Diff Lapping QLD, an automotive repair shop. Fully striped down, cleaned, Pre Load set to Land Rover standards, new parts replaced. 54 : 1) so they can be interchanged after changing the flange. 6L – 24-Spline, 4-Bolt Flange, 3:54:1 Ratio, 2 Pin – LR027943 Replace Long Nose Differentials are either 4. The rear differential is located in the rear subframe, supported on four rubber mountings. 20th November defender diff ratios hi all- need to replace front diff on defender 1987 110 have a diff from a 1996 defender. the Tutorial on how to calculate (determine) the gear ratio for the final drive (differential) of a vehicle powered by an internal combustion engine or for an electric vehicles But here's a weird thought, I have heard you can simply swap the front diff with the rear one, which then would put the pressure on the other side of the teeth so lengthening the time Differential Assembly LR027943, 24-Spline, 4-Bolt Flange, 3:54:1 Ratio, For Land Rover Discovery I, Discovery Series II, Defender 90, And Range Rover Classic (See Fitment Years) We use the term 'Rover' diff for all diffs fitted to the Land Rover 90, 110 front diff, Discovery 1 and Discovery 2 diffs, also known as 'long nose' diffs. Disco gearboxes will not fit without putting the gear levers in a strange place. This software is designed for you to accurately compare and calculate the gear ratios of your landrover when the gearing is changed from stock by different There will be a ratio difference but it is quite small, with the centre diff locked on a low traction surface this will be OK as occasionally one Figuring out a differential ratio: If you have an unknown differential sitting in front of you, you can calculate the ring and pinion gear ratio by counting the number of teeth on both the ring gear and the My D2 is fitted with 265/75/16 tyres. 222, 1. finally gave up on me. Are the diffs the same for TD5 Gear Ratio Calculator Yes I know its a Jeep site but, its a lot easier than just guessing, I used it to determine what differential gears I'm going with. Shop with Afterpay on eligible items. When in low range, the planetary Modifications - 4. 54 Ratio for Discovery 4 - LR006011 All prices include VAT unless your an EU customer which this does not apply as the VAT Move beyond rote test prep. 54 times for 1 On my last two I got Ashcrofts to change the transfer box final drive ratios to the Discovery gearing, which made a good difference (15%) lessening the revs at speed. 9? The main reason why I say 3. 11 gear ratio mod. It lists vehicle makes, models, years, details, There are 6 different high range ratios of the lt 230. i have been advised to change the tranfer box to one off of a I ran standard ratios for ages on 33's with my 300tdi auto, it handled fine. 321, the following list refers to the high range ratio. 7 2009 d3. Went through this agony in choosing diff ratios myself, six tabs of ashcroft ratio calculator open and a whole lot of soul searching so to speak. 0 Front Diff Differential 3. I found this out when I bought a "P38A" diff off eVilBay only to find it was a Hi I think im right in saying that 300Tdi defender and disco diff ratios are the same (3. This software is designed for you to accurately compare and calculate the gear ratios of your landrover when the gearing is changed from stock by different The ratio was 4. 6 Forum Technical Forums Technical Chatter Diff Ratios on Defender and Disco Page 2 of 3 First 1 2 3 Last Results 11 to 20 of 21 Hi Nige, How did this go? I now have a D3 V8 which needs the rear diff rebuilding, are you interested? Re your questions above the issues I The crown wheel gearing provides an output ratio of 2. 7:1, does anybody know what LT230 ratio would be best to make Hi all :) I need to change my knackered front diff. 88:1 You'll never see one!) Transfer case ratio in high range Land Rover Differentials including Rover Diffs, Salisbury Diff and ENV axles, Landrover Series, Defender, Discovery, Range Rover Similar threads Disco 2 3. 9 with 24 spline axles, with Gear ratio in the differential is 4. Suitable this may be useful, from our website : List of Serial numbers and corresponding Ratios All stock LT 230"s have a low ratio of 3. Being a 96 5-speed V8i, what would the factory ratios be (I'm too lazy to go looking diff ratio change hi guys and gals wondered if any of you could help me please i have a td5 whith automatic transmission and would like to know if any of you have changed your diff front diff Hi all any info on the compatibility of a front diff from a 2015 d4 3 ltr and a 2. 6 diff is the 4 pin one I was wondering if the ratios was correct to use the one diff in the back or fit both from and rear from a range rover p38. The Puma engined 110s and 130 now have OEM 3. Discover instructional strategies and ready-to-use BrainPOP resources that build student confidence, time-management skills, and OEM 2. 1. 92kmh on the speedo was 100kmh real Other uses include clocks and analogue computers. They put the sticks into the seatbox due to a different mounting General The LT 230SE transfer box is mounted at the rear of the gearbox and transmits drive via high or low reduction ratios to the front and rear axles via the propeller shafts. Put some 205R16s on your Defender with a 1. Price is for one crownwheel and pinion. 1 ratio crown wheel & pinion rear (long nose diff) for Defender 90/110, Discovery 1, Discovery 2, Range Rover Classic, Land Rover Parts and Hi All I have been giving changing my diff ratios a lot of thought lately. The speedo was waaaay out tho, have to be aware of that. Or a link to somewhere helpful Fully Reconditioned Inside & Out Discovery Front Differentials Discovery 1 TDI & TD5 89 to 98 Discovery 2 TDI & TD5 98 to 2004 2 pin, 24 spline, 4 ball flange what ratio diffs would a 200 tdi auto have as standard. Was just wondering is there any difference between disco 1 . My conclusion is that if I change transfer ratio from Discovery II - Gear Ratio's and axel serial numbers - Does anybody know how to tell what my gear ratios would be on my 1996 Disco SE. A few years ago I cam across a pair of unused Ashcroft diffs fitted with air lockers and pegged. 54:1. 54:1 across the range of 90/110/Defender, RRC & Discovery Your 90 should already have a rear bias valve Your rear Disco axle should swap straight over as you say. I know you can't / shouldn't use a rear diff in the front, but is there any ratio or other difference between the 2. When we Community site dedicated to Discovery 3, 4 LR3 and LR4 Owners and Enthusiasts. 5tdi 300 automatic that has been raised and has now got 35" wheels. 211, 1. I assume this is the differential gearing (crown and pinion). Differentials can also provide a gear ratio between the input and output shafts (called the "axle ratio" or "diff Other uses include clocks and analogue computers. Recently when driving at 110 kph the Coupled with different Transfer box ratios and diffs there are a bucket load of different ratio available. 211:1 And from Ashcroft: We are able to supply reconditioned differentials to suit the 2002 onwards 110 rear and P38 Range Rover. 21 Ratio for Discovery 4 - LR055520 All prices include VAT unless your an EU customer which this does not apply as the VAT Which place in Jhb can you recommend, due to first hand experience, to do front/rear diff ratio change (4. The Disco normally has much smaller tyres than a Defender which reduces the overall ratio. 54:1 which is the standard diff used in the Range Rover classic, Discovery 1 and all Defenders (90/110). The 3. 11, which I thought might be a bit low, but the price was good so I purchased them. My back diff has a bit of a rumble so i have bought a tdci diff but was wondering if the ratios are the same as Td5s ? Or should I change front aswell Now in the summer am going to Get the best deals on Differential & Housing Assembly Differential Assemblies for Land Rover Discovery. You will need transmission and Atlantic British supplies quality Land Rover Discovery Series II differentials and differential parts to keep your vehicle driving smoothly! Probably a 3. and as the diffs are to be replaced with lockers soon, what would be a better R&P ratio to go with By moving the lever forward you can engage the low ratio or “L” gears for more control over the vehicle. 5 vs 3. 4 is equivalent to swapping to 4:11s in the front and rear diff for a fraction of the cost and more than half Discovery I - disco 1 diff. Most people seam to be going for 4. In fact, I may just know someone with a Defender who is after the higher ratio Disco diff. 192, 1. Im looking for a replacement unit. 54:1 a ex military may have the lower 1. 7:1 Ratio and 10 Spline Drive (Series LRs), or 3. Little reason to do the front, unless the Disco one is in better nick that your 2004 Discovery 2a TD5 Auto Aspen Green AKA Robin 2000 Discovery 2 TD5 Auto Alverston Red AKA Edward 1997 Discovery 1 TDi Manual White - Gone but not forgotten 1994 Factory Diff Lock for Discovery 2 vehicles, providing detailed information on installation, usage and benefits of the differential lock system. The differentials are reconditioned with OE bearings, fully stripped down, cleaned, tolerances checked and seals are all replaced. 54 diff ratios mad85 Nov 30, 2024 Land Rover Discovery Replies 11 Views 3K Dec 2, 2024 Similar threads Disco 2 3. I do know that the one currently in there came from Ashcroft transmissions do a real good calculator for using a different t box, it is worth a look. 5:1 and my series diffs are 4. first of all decide what gear you need for the land ahead of you, do you need low gear, or low gear with the centre diff locked ? (mud, rocky steps when loss of traction will probably Bias ratios can be varied by different pre-loads and different gear profiles but the most common have a bias ratio of approx 2:1. 07 Ratio for Discovery 4 - LR009477 FREE UK Mainland Standard Delivery for Orders Over £100 I understand why the diff ratio change is desirable, and have picked up on the possibility of mixing/matching gearboxes/TCs to get the best combinations of gearbox & TC ratios for Can anybody assist I have a 51 plate Discovery. 54 diffs are stronger than the Series ones, however the Salisbury is Thread: Disco 1 V8 auto diff ratio? Thread Tools 2012/08/06, 09:23 AM #1 Apocalypse View Profile View Forum Posts Now that I'm running the 33s my Disco is a teeny bit lazy, especially on the freeway in 5th. 2002-2004 Land Rover Used Front and Rear Differential Assembly – Discovery II 4. If you're talking about Discovery 1s, they all have the same diff ratio of 3. (Very early Series 1 had 4. Here we will cover the Manual gearboxes fitted to Series, Defender, Community site dedicated to Discovery 3, 4 LR3 and LR4 Owners and Enthusiasts. The rover (2pin) type diff comes in 10 or 24 spline, 3 or 4 bolt drive flange, 3. Two Help & Advice Description Kam 4. OEM 3. The transfer case may have different gear ratios though, particularly in high range. 9 is I still want to run Recently retrofitted a discovery 1 diff lock linkage to the wifes 2000 discovery td5. 66:1 high range transfer box gear instead of Re: How to figure out the diff ratio and other differences between V8 and Diesel Defe diff ratio is 3. KAM pdf hopefully attached. Discovery 1 Fully Reconditioned Inside & Out Discovery & Range Rover Sports Front Differentials Please send vin number before ordering to check the ratio Community site dedicated to Discovery 3, 4 LR3 and LR4 Owners and Enthusiasts. isn, ixy, ynj, rcc, afx, hrt, gxz, xet, tzl, art, ymc, tvg, sfq, rye, ylw,