Recondtioned Gearbox issue

Hi guys New to the Forum And was just wondering if you could shed some light on a gearbox issue i have just Had ?
I had a recon box 350 miles ago fitted on my Range Rover 3.0td6 03 reg 118.000 miles with the GM box Fitted as it was not holding Pressure and took a while to engage in drive on start up ! So in it went for 10 days in total came out with recon box brand new torque converter .
So was on a run for a weekend away on 35 miles away drove spot on until i got to within a mile from my destination and all of a sudden at a junction it felt like the gears had double up on themselves when i braked and come to a stand still ? The engine was hunting and felt like it wanted to shoot off in 2nd or 3rd as 1st was not noticed ? When i pulled over i took out of gear and turned the vehicle of and then re-started it put into reverse and nothing at all ! I then put back into drive and it felt like it jumped into 2nd or maybe 3rd definitely not 1st.
I drove forward as i could not turn around and all the gears felt like they was all over the place(sloppy) So headed home ! and it got me all the way back and cruised at 70mph with no issues.
To me it feels like the gears have seem to have all moved out of sync .
The price of the Re-con box was £1800 inc vat
Anyone have any ideas to what it could be ? Or has anyone come across this after having a new Recon box Fitted ? Thanks in Advance.

Is the repair still under warranty?

Hi Flossie yes it is ! its just the thought of another 10 days while they figure it out ,Just thought someone may have an issue with a new recon box so soon ? cheers

I can't help at all, gearboxes are a dark art to me sorry.
James Martin on here is probably your best bet for advice, he'll be along shortly I'm sure.

OK thank you

No luck off James yet?
Maybe send him a pm.
Click on his username then click 'start a conversation '
At least it's under warranty so just inconvenience rather than money.

hope you had a new cooler/pipes fitted aswell or you will be back to square one if its blocked

Hi there Guys the issue was the torque converter ! So they are putting a new one in as it had sheared something ! as they 1st though it was a seal issue in the pump housing but no box off again but it will be sorted within 5 days .Cheers

Flossie said:

No luck off James yet?
Maybe send him a pm.
Click on his username then click 'start a conversation '
At least it's under warranty so just inconvenience rather than money.

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No no reply pal ??