Is it the same transmission gmc 1500 2003 and gmc 2007 older model is it fits

Yes it is all the same apart from the truck transmission gear ratios. The engines are the same size.

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I need to find out what transmission is in a 1999 gmc sierra ...

www.cargurus.com > Questions > GMC > Sierra 1500

CarGurusApr 7, 2013 - I need to find out what transmission is in a 1999 gmc sierra 1500 pick up 4x4 extended cab. ... Good luck. if the transmission is bad and you KNOW that for a fact, just go ahead and pull it ... My trans went out yesterday and I found one and wantto make sure it fits before I buy it. ... Used GMC Yukon Denali".

Is The Transmission In A 1999 Gmc Yukon And ... - CarGurus

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CarGurusAug 15, 2014 - Is the transmission in a 1999 gmc yukon and a 2000 Yukon Denali the same. ... Does anyone know where I can get a fairly cheap used motor from in or ...Need a good fairly cheap motor for my 99 Gmc Yukon Denali 5.7L V8.

These procedures are not as simple as they used to be in older vehicles. Then it was a matter of:

• Will it fit?



• Do I need a transmission adapter?



• Do I need to modify or change the driveshaft?

Nowadays, because these engines are computer-controlled, the wiring harnesses and on-board computers are specific for the model and engine installed. It may require much detailed work, electrically and mechanically, to achieve what you desire. It is often not worth the cost.

No I don't think it is the same transmission

GM is notorious for one size fits all, so most any 4x4 transmission will fit. I would stick to close years that can provide the same style transmission, like 700r4 or 4L60, so the electrical just plugs in. Hope this helps.

no such thing as a gmc 1500 silverado

Not a stock 1991 GMC Sonoma transmission. They're made to fit a V6, not a V8.
(With a 4.3Liter V6 engine)

no, they have different engine mounts and 3.1 needs bigger,more heavy duty transmission.

if it has a 4.3 liter motor a 86 to a 97 if it has a 350 motor a 81 to a 96 will work hope this helps

It very hard to give an accurate diagnosis of the problem if you don't state at least the year of the vehicle because technology on cars change every couple of years, and a component that is on a vehicle this year, might not be on that model next year.
Here's a guess: if your truck is an older model, then it has a vacuum modulator on the side of the transmission. Often when these modulators go bad, the internal rubber diaphram ruptures and allows the engine to **** up transmission fluid.