Outer Limits 4x4 Board

G'day all, I'm in the middle of taking the gearbox out of the mav to replace the rear main engine seal. At the moment I'm at the stage where the weight of it is being held by a crane through the passenger door with a sling around the whole thing. I've got two trolley jacks underneath holding it aswell. It's a bloody massive box in these things and I was just wondering if anyone has done it before and has any handy tips to pass on so i don't crush myself under the weight of it. It was much easier on my old sierra!!

Your on the right track, make sure you have a couple of mates to help, you cannot muscle one of these by yourself or you will hurt yourself.
If it falls, let it drop, you wont hurt the gearbox but you may lose a finger if it gets caught.

Apart from that just undo everything except one bellhousing bolt then get ready with the jacks & remove the bolt & away you go.

Dont forget to support the engine if it needs it.

I plan on paying $280 for the shop to take my buggered gear box out and put the new one in.
I was going to do it myself but have lost interest cos its to big and heavy.

I used the engine crane through the door and then put it on blocks of wood

You can just put it on jack and man handle it from underneath - I did it with my GQ ute last year. OR - I have since had a plate that bolts onto the side of the MK box where the PTO coverplate goes - its 4 bolts and comes underneath to a central balance point and fits in the end of my trolley jack perfectly balanced - much easier when vehicle is high enough. Not sure if GQ has the PTO output on it though ?

Just a thought....

Mk

Thanks guys I think I have it sorted now. I managed to borrow a gearbox jack which is a pretty handy bit of kit. I'll remove the two trolley jacks from underneath while keeping it steady with the crane and slide the new jack under and use it to lower it safely. Wish I knew about these things in the first place. Oh well it should be all good. I plan on checking the clutch obviously while its all out but is there anything else I should be looking out for while I'm there?

Check clutch throwout bearing for noise--replace while its out-check input shaft seal and bush in flywheel as well..

NIck