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  1. 4HP24 reliability

    Range Rover Mark II / P38
    I have previously owned several BMW's with the 4HP22 auto tranny. I was not impressed with their durability, and they tended to fail prematurely even when properly maintained. At least for the BMW applications, it was a weak link in the cars. I know the 4.0 uses the 4HP22, and the 4.6 uses the...
  2. 4HP24 sometimes not shifting into 4th

    Range Rover Mark II / P38
    About 5000km ago I changed the fluid and filter. Since then the gearbox has been feeling a little weird. It's hard to describe, but a general feeling something isn't quite right... Yesterday I let a friend drive for a bit to see what he thought of it, all felt fine until we came to a bit of...
  3. ZF 4HP24 into a diesel p38

    Range Rover Mark II / P38
    I have replaced the ZF 4HP22 gearbox on my diesel p38 with the stronger 4HP24 as used on the 4.6 V8. Here are a few notes for anyone wishing to do the same: Background: I have got a chipped 2000 DSE with a larger intercooler / performance air filter. EGR valve has been removed. I would guess...
  4. Any Good ZF 4HP24 Repair Manuals Out There?

    Range Rover Mark II / P38
    I'll be rebuilding my ZF4HP24 gearbox to fix the "I have to drive it like a manual" problem that is caused by a broken sprag. I'll be rebuilding all the clutches while I have it out as well. I've looked all over google but really only found an ATSG manual. Does anyone know of or have a better...