[froof1]

Hi everyone

I have a 1986 Sierra NT that has a very worn gearbox. The selector mechanism is very sloppy and very expensive to repair.

Is it possible to find a low Km gearbox and put a rebuild kit in it (what are my chances of finding one), or could I put a Vitara manual gearbox in it?

Has anyone put a Vitara gearbox in a Sierra? If so, what is involved.

The engine has recently been rebuilt and I want to keep that in the car.

Many thanks

Chris

[want33s]

With modification I can't see why you couldn't use a BenT or Petroworks bellhousing adapter to fit a Vitara 5 speed to a 1.3.
You'd have to weld up and redrill the countersunk holes from the other side.
Trans tunnel will need mods.

[orangeshannon]

my four speed was pretty sloppy to and only had 90,000 k's on it untill i broke the bolt that stops the gear leaver moving from side to side the bolt that it pivets off. so i replaced it and it made it alot better the bolt bolt was all flogged out and it just ended up snapping. i think from memory it was a 8mm bolt something like that i just put a couple of nuts in it to lock it up and she was fine

[orangeshannon]

also my gear lever where that bolt goes into it was pretty rounded out aswell

[froof1]

Thanks for the replies. Does anyone know what would be considered a realistic low Km gearbox for these beasts? I can replace bearings, syncros and seals, but replacing them is a waste of time if the selector hub is worn out (like the one I currently have).

Also if I went down the Vitara gearbox path, would I need a specially made shaft to connect from the vitara gearbox to the Sierra Transfer case?

[got_bar_work]

U need to get ur jack shaft cut down as the vit box is longer i think
Do u have a 1.3or 1L

[froof1]

I have the 1.3 litre motor.

[got_bar_work]

I think early jimmy box might fit
Should be able to find one with less kms and not have to suff round with adaptors tunnel mods etc

[froof1]

Do they have 5 speed boxes?

[Fatzook]

froof1 wrote:

Do they have 5 speed boxes?

Yes.

Infact the G13BB gearbox internals are completely interchangable with sierra internals.

But got_bar_work may be giving you a bit of a bumsteer there. Finding a low km's BB jimny is still going to be quite hard, as they are now 12-14 years old too.

[froof1]

Thanks Fatzook for the info.

I will have a better chance of getting lower Km compared to my 1986 Sierra.

Cheers