Description
We are very pleased to announce a special 1.100 ratio gear set we have made for the LT230T.
For those not familiar with these ratios, this means the input gear will turn 1.100 times for each turn of the output flanges. The low ratio stays the same at 3.321.
This ratio can be used on vehicles with non standard engines or are well suited to tuned TD5 Discoverys or tuned TDCi Defenders which will already have the 1.2 ratio but because of the additional power feel ‘like they need another gear’.
You may find it useful to use our ‘ratio calculator‘ to see the reduction in engine RPM when using this ratio.
These have the thinner type engagement teeth on the high gear and so will fit the LT230’s with serial number XXD226368E and later.
To be able to fit this ratio to an LT230 with a serial number before XXD226368E, you will also need FTC1084 (low range gear) and FTC382 (high/
Please see the photo below to help you identify your engagement teeth, note the upper teeth are the later, thinner type and the lower teeth are the earlier, thicker type.
For some transfer boxes an additional gear will be required in order to fit this kit. These gear kits are made to accept the 26 tooth input gear.
See below guide :
22D Sx C to 22D Sx G, you can reuse old input gear
28D, upto 28D308262E, you can reuse the old input gear
28D, from 28D308263E, you will need a new input gear FTC5089
36D, you will need a new gear, FTC4962
41D, 42D, 61D, 69D, 70D, (all Disco 2), you will need a new gear, FTC4962
43D, (TD5 Defender), you can reuse old input gear
80D and 81D, (all TDCi Defender), you will need a new gear, FTC4962
Note these cannot be fitted to the early suffix A or B LT230’s.
Please advise your serial number on ordering and we will contact you if it is required.
Edward Young (verified owner) –
Perfect for what I needed !
Was going to go for the 1.2 in my remapped TD5 but went for the 1.1 instead. And I’m glad I did. Not a lot of loss when pulling away and a far better 5th for when I’m on the motorway. Would recommend for anybody with a modified TD5.
Paul Mayer –
Perfect Ratio!
When converting my 101 Ambulance to automatic, I had the choice of the usual LR ratios for the transfer box. Before deciding which one, I bought a compleat 2nd hand auto/tranfer unit from a V8 Disco to use for mocking up the necessary brackets and to avoid the core charges on both units. It confirmed that the 1.2 to 1 was too low. So I went for the 1.003 to 1, which the tuned 4.6 pulled fine apart from the occasional motorway incline which needed the gears to be manually pulled into 3rd.
When I saw this option, I was VERY interested, and now having had then fitted it really is the perfect ratio for mine. Despite only being 8.8% lower, it pulls much stronger in EVERY gear but without adding too many revs when cruising. It now actually accelerates on the same motorway gradients when asked, without the need to change down.
With the engine closer to peak torque at cruising speed (60-65mph), it MIGHT even save some fuel… ????