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| Worn out Sierra gearbox. Options? https://auszookers.com/forum/viewtopic.php?f=5&t=34713 |
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| Author: | froof1 [ Sat Aug 04, 2012 7:33 am ] |
| Post subject: | Worn out Sierra gearbox. Options? |
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 |
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| Author: | want33s [ Sat Aug 04, 2012 7:54 am ] |
| Post subject: | Re: Worn out Sierra gearbox. Options? |
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. |
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| Author: | orangeshannon [ Sat Aug 04, 2012 10:28 am ] |
| Post subject: | Re: Worn out Sierra gearbox. Options? |
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 |
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| Author: | orangeshannon [ Sat Aug 04, 2012 10:32 am ] |
| Post subject: | Re: Worn out Sierra gearbox. Options? |
also my gear lever where that bolt goes into it was pretty rounded out aswell |
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| Author: | froof1 [ Tue Aug 07, 2012 7:23 am ] |
| Post subject: | Re: Worn out Sierra gearbox. Options? |
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? |
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| Author: | got_bar_work [ Wed Aug 08, 2012 2:01 pm ] |
| Post subject: | Re: Worn out Sierra gearbox. Options? |
U need to get ur jack shaft cut down as the vit box is longer i think Do u have a 1.3or 1L |
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| Author: | froof1 [ Thu Aug 09, 2012 6:49 am ] |
| Post subject: | Re: Worn out Sierra gearbox. Options? |
I have the 1.3 litre motor. |
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| Author: | got_bar_work [ Thu Aug 09, 2012 8:20 am ] |
| Post subject: | Re: Worn out Sierra gearbox. Options? |
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 |
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| Author: | froof1 [ Fri Aug 10, 2012 6:48 am ] |
| Post subject: | Re: Worn out Sierra gearbox. Options? |
Do they have 5 speed boxes? |
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| Author: | Fatzook [ Fri Aug 10, 2012 12:18 pm ] |
| Post subject: | Re: Worn out Sierra gearbox. Options? |
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. |
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| Author: | froof1 [ Fri Aug 10, 2012 5:07 pm ] |
| Post subject: | Re: Worn out Sierra gearbox. Options? |
Thanks Fatzook for the info. I will have a better chance of getting lower Km compared to my 1986 Sierra. Cheers |
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