Thread: Broken RRC

You have overadjusted the handbrake.
Regards Philip A

Originally Posted by mams

Hi all
I was having a great time today driving home from work on the F3 when I hear a gentle clunk from the rear and the vehicle felt as if I had the brakes applied. I came to a stop and had a look under but couldn't see anything obviously wrong. I could only just barely move the car forwards but something was very wrong. I dropped it into low range and it drove fine just like normal in low, but back into high it still struggled. It was very stiff between low and high.
I drove the 20 ks home in low just crawling along.

What should I check first? I have basic skills and tools but will give everything a go.
It is an 87 3.5 efi with zf auto and lt230 TC.
Recent things of note are I replaced the ATF in the TC a couple of days ago
I also fitted my spare tyre to the front of the vehicle at that time which has much more tread than the other side but I don't know if that would affect things too much.
Any thoughts or suggestions would be appreciated
Stehl

Did i read correct that you used ATF in the lt230 T/C the T/C should run gear oil

Yes I used ATF instead of gear oil as that is what was already in it.
I have seen it mentioned a few times on different sites that the lt230 can run either gear oil or atf.
Should I only use gear oil?

Originally Posted by mams

Yes I used ATF instead of gear oil as that is what was already in it.
I have seen it mentioned a few times on different sites that the lt230 can run either gear oil or atf.
Should I only use gear oil?

Im sure they use 80w90 gear oil , Its the manual lt77 and r380 gear box,s that you use a form of ATF.

You sure its a LT230 T/C and not a borgwarner viscous T/C

Have a looky here rick130 is the oil guru
http://www.aulro.com/afvb/technical-...ch-better.html

Thanks for the link Rangieman
I'm not absolutely certain that it is an lt230 I'm just going off the specs I have found on the net for that year model.
I have just tried driving it again now that has cooled down and it's stuck in low.
I'll drain the fluid tomorrow and see if I can find the problem.

Originally Posted by mams

Thanks for the link Rangieman
I'm not absolutely certain that it is an lt230 I'm just going off the specs I have found on the net for that year model.
I have just tried driving it again now that has cooled down and it's stuck in low.
I'll drain the fluid tomorrow and see if I can find the problem.

Does it have a centre Difflock on the high low lever as in move the h/lo lever to the side to engage the centre diff lock ? if it does its a lt230

Yes if I push the hi/low lever to the left it operates the cdl.
I've had the vehicle for 9 months now and covered 15 k in it (287 k total)
I don't know it's service history before I bought it but I purchased it from the original owner. I wonder how long it had the wrong fluid in it.