View Full Version : 4HP24 into RRC
bikeman
14th March 2018, 08:35 AM
I noticed in a post that Gavin installed a 4hp24 into his LSE. My auto is on its way out and wondering what is involved with installing a later model gb into a 95Classic. I don’t want to go manual.
Phil
fitzy
14th March 2018, 10:06 AM
There are two auto gearboxes fitted to rangie classics.
Chrysler torqueflight and zf hp 22.
The zf hp24 was fitted to p38’s and is roughly 24 mm overall longer , it’s a bit stronger than the 22.
I’m not sure how the extra length is dealt with .
Is the prop shaft shorter?
You should find more 22’s available than 24’s but if you already have one the why not.
Ashcroft Transmissions (http://www.ashcroft-transmissions.co.uk/automatic-gearboxes/zf4hp22.html)
PhilipA
14th March 2018, 10:12 AM
Isn't the HP24as fitted to a 38A the EH version which is electronically controlled by a computer?
You could rebuild a 4hp22 as a 4hp24 but the driveshafts have to be changed as the 24 is longer than a 22. You could also run a stand alone computer to run it.
Ashcrofts can do this. Have a look at their site.
Regards Philip A
350RRC
14th March 2018, 02:40 PM
There are two auto gearboxes fitted to rangie classics.
Chrysler torqueflight and zf hp 22.
The zf hp24 was fitted to p38’s and is roughly 24 mm overall longer , it’s a bit stronger than the 22.
I’m not sure how the extra length is dealt with .
Is the prop shaft shorter?
You should find more 22’s available than 24’s but if you already have one the why not.
Ashcroft Transmissions (http://www.ashcroft-transmissions.co.uk/automatic-gearboxes/zf4hp22.html)
And BW35's and Ford C4's and C9's in Oz.
DL
fitzy
14th March 2018, 08:49 PM
Yeah yeah, you know I was talking factory[emoji57]
But correcto.
bikeman
14th March 2018, 09:16 PM
I think I will look around for a hp22. I may build up a hp24
blackrangie
15th March 2018, 12:34 AM
Call A & B automatics in Vic..they can do 22 with 24 internals
A & B Automotive Remanufacturing | A & B Automatics | Land Rover and Range Rover remanufactured automatic transmissions | A&B Automotive | Automatic Transmission Remanufacturing, Repairs and Exchange Australia (http://abautomatics.com.au/land-rover-and-range-rover/)
RRCHEV
5th July 2018, 03:53 AM
A&P Automotive in Dandenong built me a full custom auto with upgraded internals to handle 550hp. I run an Ls chev & I did not want electrics (no computer). As I am in deep mud and water so electrics depletion was my agenda.
The HP/22-24 has not let me down at all. I am running 36" tyres and have around 180kw @ wheels.
Fuel is my only issue.....
And cleaning..
superquag
7th July 2018, 08:28 PM
I noticed in a post that Gavin installed a 4hp24 into his LSE. My auto is on its way out and wondering what is involved with installing a later model gb into a 95Classic. I don’t want to go manual.
Phil
Not quite, the PO (East coast) did the installation, engine & gearbox and electrics/whatever - D2 was the donor vehicle.
IMHO, it's the drivetrain the LSE should have had as Original.
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