Question about 1992 GMC Sierra

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How do I find out what transmission i have in my truck, its a 1992 GMC Sierra, 5 speed manual w/OD.

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Call gm dealership with vin# and they will tell you

Posted on Sep 01, 2010


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Location of speed sensors on a 1992 GMC Sierra 2500 4x4

You more likely have an internal problem, namely the High-Reverse clutch pack. If the trans is making the 1 - 2 shift, and your Service Engine light is not on then your speed sensors are working. Judging by the age of the vehicle I would guess that the trans has already been rebuilt at least once (most of the overhauls I do occur at about 150,000 kms) and the failure I see most is the sealing rings have scored the direct drum and led to no third and/or reverse, and of course, no third, no fourth. Want a quick and easy check? Pull the trans dipstick and smell the fluid. It likely has a burnt smell to it.

Apr 11, 2013 | GMC Sierra 2500 Cars & Trucks

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What kind of transmission fluid do u use for a 1999 gmc sierra 5 speed

Either dextron 3 or dextron 6(synthetic version of dex 3) are suitable for GM manual transmissions.

Jun 26, 2011 | 1999 GMC Sierra

1 Answer

I need to know what kind of tranny fluid goes in a manual transmission on a 1989 gmc seirra with 305 its a stepside to. i put amsoil synthetic manual synchromesh transmission fluid in it but im worried...

Muncie 4 (117MM) speed---Lubricant Type---------80W-90 Gear Oil
Muncie 5LM60 (HM-290) 4 & 5 Speed ---------Lubricant Type------Syncromesh Trans Fluid T2850

Oil Capacity= 5 Speed (85mm & 109mm)--3.6 pt (US)
(New Venture Gear 4500)--8pt (US)

4 Speed= (85mm)--3.6pt (US)
(117mm)--8.4pt (US)

Hope this helped you ??

Jun 14, 2011 | 1989 GMC Sierra

1 Answer

Where is the dipstick on a manual transmission for a 1992 gmc sierra 1500

manual trans. dont have dipsticks... there is a pull on side of trans. half up side or more u take it out and if fluid comes out its full or stick finger in to c how low.... if cant fell fluid with finger its pretty low.....

Jan 24, 2011 | 1992 GMC Sierra

1 Answer

Can I replace my 700r4 in my 1992 GMC Sierra with 350 turbo tranny out a 1985 GMC Sierra?

I did, but I had to exchange the drive shaft b/c the length was wrong. the R4 has OD, and the 350 does not, making the 350 shorter. It's no a great idea. I was unhappy with the 3 speed 350 because of very poor gas mileage, so I went back to the r4. I had a bit of an issue with the speedo cable and the tranny crossmember mount too. It's not really worth it, but yes, you can do it, but it's going to take fab work, and after my own ordeal, I'd not really suggest it. I was just trying to save a few bucks, and got myself into a world of hurt. lol you live , you learn. Unfortunately Fixya did not exist back then.

Dec 10, 2010 | 1992 GMC Sierra

1 Answer

Speed odometer not working for a 1992 gmc sierra

I suggest you ntake it to a transmission shop. The cable that runs the speedometer runs from gauge to output shaft on transmission. If cable and gayge are a-ok then its the gear that the cable runs to on the output shaft., which means a transmission type of repair.

Apr 25, 2010 | 1992 GMC Sierra K1500

1 Answer

I have a 1992 Gmc sierra manual transmission, the gears are hard

It is an adjustment or clutch replacenment issue. Manual transmissions rarely have a lube issue unless you have seen a big puddle of very thick oil in the driveway.

I think I'd be looking at the clutch of this 16 year old vehicle. Unless you have the tools, time and skill to change the clutch, this is probably a job better left to a professional. Adjusting the clutch mechanism might help for a while but I think you will soon need a clutch job on your GMC.

Thanks for your question at

Jan 14, 2010 | 1994 GMC Sierra

1 Answer

My 1992 gmc 4.3 5 speed stick, speedometer does not work. What could the problem be? there is no speedo cable.

You probably have a bad vehicle speed sensor (VSS).It is located in the transmission ,at the rear left hand side.It will have a two wire connector.

Aug 08, 2009 | 1992 GMC Sierra

1 Answer

Need to know how to rebuild 5 speed manual transmisson for a 1995 gmc sierra pickup

You're kidding right? Transmission repair is not for amateurs. Heck, most mechanics don't even mess with them: it requires specialized (read: $$$) tools and expertise. Either take it to a transmission place, or buy a rebuilt one and swap it out. You'll be glad you did.

Jul 30, 2009 | 1995 GMC Sierra

3 Answers

What transmission will fit in an 89 gmc sierra?

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

Nov 20, 2008 | 1989 GMC Sierra

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