Outer Limits 4x4 Board

Hey,

i am starting to get a fair amount of noise from the gearbox in my F310 when decelerating at low speeds in 1st or 2nd gear (1st moreso) and i was just wondering if that is likely to be something that is repairable like a bearing or just plain old worn gears.

i dont mind doing the work of getting the box out etc as its not my DD and it would be a bit of fun to take apart the gearbox but i dont particularly want to waste my time.

is it possible to 'rebuild' these gearboxes with new seals and bearings or is it not really worth it at 260xxxkms?

thanks

Sounds like worn bearings like mine had. You can buy rebuild kits or individual bearings. I was told by the guy who did mine some of the bearings are very expensive (luckily those ones were OK in my box.)

i know very little about gearboxes and tools required etc.

i am very happy to give things a go once but is this a job that you need alot of specialist tools or anything?

also what are the bearings ina gearbox (i/e how many am i looking at?)

sorry

IMHO you'd be better to get it done professionally - without being an expert on Feroza transmissions ( I scrapped mine years ago ) its usually requires specialist tools to do - and is a job for the experts.

I usually have a go at most things but setting up diffs and gearboxes is a step too far.

Have a look in the manual and you'll see just whats required.

In my sons car they put the wrong gearbox oil and it made alot more noise. When I changed it with proper viscosity oil it made it alot more quiet.

wot type of oil is to go in the gearbox?????

75w90, I use Nulon "Smooth Shift". I would check your oil levels first.

I rebuilt my F300's transfer case here at home with no "special" tools and not having done-so before - they are a pretty simple affair with commonly available parts (but no "off-the-shelf" rebuild kit) and the only thing you'll find you can't do at home is pulling the old bearings and pressing new ones on (easy enough to get a drivetrain place to do the labour).

whilst I had the transfer and gearbox out I drained the gearbox and filled it with the same Nulon 75w90, which made a hell of a difference with getting into 2nd and more-so 1st gear (which were a proper b*tch before). The oil was pretty yuck, and now the whole thing is much happier and quieter. The transfer itself was a mess of metal filings and failed bearings, but the gears held up quite well and were reuseable.

My transfer rebuild was under $100 in bearings and oil seals, and $50 in labour - not counting my own time.

wacky wrote:75w90, I use Nulon "Smooth Shift". I would check your oil levels first.

I rebuilt my F300's transfer case here at home with no "special" tools and not having done-so before - they are a pretty simple affair with commonly available parts (but no "off-the-shelf" rebuild kit) and the only thing you'll find you can't do at home is pulling the old bearings and pressing new ones on (easy enough to get a drivetrain place to do the labour).

whilst I had the transfer and gearbox out I drained the gearbox and filled it with the same Nulon 75w90, which made a hell of a difference with getting into 2nd and more-so 1st gear (which were a proper b*tch before). The oil was pretty yuck, and now the whole thing is much happier and quieter. The transfer itself was a mess of metal filings and failed bearings, but the gears held up quite well and were reuseable.

My transfer rebuild was under $100 in bearings and oil seals, and $50 in labour - not counting my own time.

Is taht also called or equivalent to GL-3 or GL-5?

GL-5 semi-synthetic.

If it isn't your DD then definately worth doing yourself if you are a little handy with basic tools. Biggest problem as said before is usually getting access to somewhere to pull and re press the bearings (most traditional mechanic workshops have these facilities)

Bearings can often be sourced through a decent bearing supplier (cbc etc) take the old one's in and they can usually source them for you, and a lot cheaper.

You'll also gain an understanding of how it all works and some extra respect for it all!

From memory: the joint that rebuilt mine couldn't get two gearbox bearings from the normal outlets; they said genuine was the only option and they were over $200ea? Luckily, they said those two bearings were OK and didn't need replacing.

I also found a place that sold full rebuild kits for the boxes, but deleted it from my favourites when I sold my Feroza.

I have kept track of every bearing I replaced in my transfer, all were commonly available, even if you wanted to stick to the original brands (I went with NSK). But do ring around before putting down the dollars, I found differences of up to $20 per bearing, for the same brand/model so it pays to shop around.

I'd love to know what these "$200" bearings are, I'm sure their would be another brand out there, maybe they were hunting an exact (brand) replacement - bearings can get tricky as some of the manufacturers use different terminology, before I laid down the dollars I did a lot of research (a few days) reading about the bearings I was replacing and what could be used in their place if I needed to source the same thing from another brand.

I'm only posting up what I was told.

It would be of great use if you could post up a list of bearing part numbers for other Feroza owners.

Yeah I have to complete my write-up on the rebuild, took shiploads of photos along the way

Rest assured, when I do it I'll list part numbers and prices, and my list of exact-replacements in-case you cant find what you want in the original brand.