Leaking from differential housing + transfer case (6x6)

vasimone · Oct 31, 2017

Heya,

This weekend i progressed with this work - but had a few challenges:

1) I tried changing also the transfer box oil seal, flange, etc - as indicated earlier in this thread. However the flange that is fitted on my landy has 2 screws on the side besides the 4 bolts - pic attached - and the one that i bought (part number frc5442) didn't have that - so I wasn't able to change it. What is the part number of mine? from the picture you feel this flange needs to be replaced or the leaking can be mainly referred to the oil seal (which I was able change) ?

2) My mechanic said that the transfer box bearing and the one for the differential housing were fine (stc1130) so he didn't replace these (nor the other part 607197 of the differential housing) - is it worth changing it anyway since now i have bought the piece or best to leave it in place until further date (ideally before it brakes and it creates issues)?

3) The bolts I was missing in the transfer box have been replaced (fs108301l) - however as you can see from the attached these are longer than the original ones - are they going to be fine or shall i replace with the ones of the same height?

Thanks a lot!!!

Simone

jamesmartin · Oct 31, 2017

vasimone said:
Heya,

This weekend i progressed with this work - but had a few challenges:

1) I tried changing also the transfer box oil seal, flange, etc - as indicated earlier in this thread. However the flange that is fitted on my landy has 2 screws on the side besides the 4 bolts - pic attached - and the one that i bought (part number frc5442) didn't have that - so I wasn't able to change it. What is the part number of mine? from the picture you feel this flange needs to be replaced or the leaking can be mainly referred to the oil seal (which I was able change) ?

2) My mechanic said that the transfer box bearing and the one for the differential housing were fine (stc1130) so he didn't replace these (nor the other part 607197 of the differential housing) - is it worth changing it anyway since now i have bought the piece or best to leave it in place until further date (ideally before it brakes and it creates issues)?

3) The bolts I was missing in the transfer box have been replaced (fs108301l) - however as you can see from the attached these are longer than the original ones - are they going to be fine or shall i replace with the ones of the same height?

Thanks a lot!!!

Simone

bolts 25mm is a good size but lr often used 30mm bolts it doesnt matter which,diff bearings are 606474 and frc7871, rear flange is ftc4942

vasimone · Oct 31, 2017

mehn that was fast!
1) you think I should replace the rear flange given the condition of mine?
2) I must have misunderstood the bearings then - anyway, worth replacing them just to be sure since I was having some leaking or if the mechanic says they are fine I should just let them be?
3) worth me changing all of the bolts then to the same size one i.e. all 30mm ?

I am going on a 2000km trip in central Ghana soon so it'd be good to be set on this

thanks a lot

Simone

jamesmartin · Oct 31, 2017

rear flanges rarely wear has yours
if bearings are good then they are ok
it doesnt matter about the bolts 25 or 30 or a mix

vasimone · Oct 31, 2017

rear flanges rarely wear has yours --> by this means that mine is good and I can leave it or that rarely a flange has weared off like mine hence I gotta change it?

jamesmartin · Oct 31, 2017

vasimone said:
rear flanges rarely wear has yours --> by this means that mine is good and I can leave it or that rarely a flange has weared off like mine hence I gotta change it?

the pic doesnt show much

vasimone · Oct 31, 2017

better in this pic?

jamesmartin · Oct 31, 2017

id change it splines are worn it must have been loose

vasimone · Oct 31, 2017

ok, what's the risk of using it like this?

As I am changing this then, anything else that would be worth looking at/replacing?

jamesmartin · Oct 31, 2017

output shaft splines and flange plus sealing washer for flange washer

vasimone · Oct 31, 2017

these:

1x ftc4939 (transfer box output seal)

1 frc2464 (washer felt transfer box rear)

4 x frc3602

jamesmartin · Oct 31, 2017

yes those too

vasimone · Oct 31, 2017

which are the part number of the ones I didn't mention and you suggest doing?

jamesmartin · Oct 31, 2017

vasimone said:
which are the part number of the ones I didn't mention and you suggest doing?

none ,just check shaft splines

vasimone · Oct 31, 2017

ok, do these have to be sharp or how would I recognise their condition/status?

jamesmartin · Oct 31, 2017

wear shows as a step in the teeth

vasimone · Oct 31, 2017

as this: https://goo.gl/images/Yr4wKD

If mine are, fingers crossed, still in good condition, shall i put some grease on the teeth for ongoing protection?

jamesmartin · Oct 31, 2017

id change that ,frc5450

Leaking from differential housing + transfer case (6x6)

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