2.9 Gearbox (Auto)

[rvjeff69]

Sorry for this thread to be here more than once again again. I'm only just getting the hang of where to place it.

Hi Simon Jason and all.
I have just bought another rv, the white with the new sierra chassis off ebay. It has the ford 2.9 engine in it with a manual gearbox. I want to change it to an automatic, (and hopefully a LHD).

What I need to know is; Will the 2ltr DOHC gearbox fit the 2.9 engine, or do I have to get one from the same engine. If this doesnt fit, does anyone know which gearbox I need for the 2.9 Thanks, Jeff.

[Muddy Funkster]

Hi Jeff

Nice to here from you again.

I can answer this as I have been there and done that! But in reverse, had auto wanted manual.

The V6s have a different bell housing and require a longer input shaft.

You need to be specific with the gearboxes. I think if you google it there is a great website that goes into detail.

You should easily get at auto gearbox out of a Granada GHIA of perhaps on ebay, most people are chucking the autos in favour of manual. Ford V6 Manual gearboxes are very hard to find so your will sell well on ebay.

I am sorry you dont want to here this but I scrapped an auto box

[spikester18]

the 5speed manual box is a type 9 5speed and the out put shaft is 1 inch longer as simon said, in the classic ford world the v6 5speed is a better stronger gear box with better 1st gear ratio but needs too much modyfing for the avrage garage build to make it worth doing, eg u carnt just grind off 1 inch with a grinder, the bolt pattern is more or less the same i think but as for autos wel the best thing to do is find a car with the 2.9 in and search for the gearbox it has, this site covers all the manuals tho if it helps www.zetecinside.com/xr2/gearbox.htm

[rvjeff69]

Thanks Simon and I think Jason.
This all sounds a bit too complicated for me. I think I’ll take your advice and wait for the right car to come for sale, probably on ebay.
This RV I just got off ebay has had the ECU and the injection system taken out and a carb fitted. All seems to be OK and the engine sounds really well. Although there’s a lot of stray wires around the engine, which I can probably sort out.
As regards fuel economy and future maintenance, do you think it better to leave it with a carb or put the injection system with ECU back together? (Or rather, take the whole loom etc from another Granada). BFN, Jeff.

[spikester18]

btw its mike i had the yellow ss the the shows in 06'

[rvjeff69]

Hi Mike, sorry for my mistake and thanks for your help.
What do you think about my last question. "As regards fuel economy and future maintenance, do you think it better to leave it with a carb or put the injection system with ECU back together?" Bearing in mind that I plan to conver it to PLG in the not too distant future, and take it to Spain. Thanks Jeff.

[spikester18]

rite im asuming u mean LPG as in gas? if ur going for that conversion the price of a system for a injection set up is roughly around 3 times the price as a carb set up, but for genral trouble free motoring the injection is the better of the 2, if it was me (and im usualy rather poor) i would stick to whats easyer to do and stick with carb and gas, its less wiring, cheaper if it gos rong and easyer to fix, it would mean 20mpg if ur careful on petrol but the gas conversion will make up for this, speak to bunj who has had it fitted to his monster truck (green toyota) if fuel econemy is realy top of the list fit a transit D or TD engine and make some bio fuel like me, i can explain how if any 1 is intrested but me quantum is happly running on old KFC oil hope it helps

[rvjeff69]

Hi Mike. Its not that fuel economy is top of the list, although it is on the list. It’s just that I plan to take my new RV to Spain, and because my Spanish is not that good and most mechanics etc don’t usually speak English. I am more concerned with maintenance, breakdowns and parts. But I’ve got to say that bio fuel does sound great, and I’m sure many others would love to know how it’s made. I know of people running their diesel cars etc on cooking oil from Asda, but I’m sure there must be more to it than that. Please tell. Thanks again and Happy Christmas. BFN, Jeff.