25th Jun 2003, 21:04

I bought my '89 GMC Sierra brand new off of the show-room floor. It has been the greatest driving joy of my life. It has the 5.7 litre V-8 and runs like the true beast that it is. Pure fun and excitement. It also has the 5 speed manual tranny which adds to the hot rod sensation. I had it overhauled at 187k. I'll never get rid of it. It is still the best looking truck around these Oklahoma parts and it has much competition.

9th Dec 2003, 10:36

I recently purchased an 89 GMC Sierra, Z71 Regular Cab. She has seen some work in her day, but MAN I love this truck. It has the 305 V8, Flowmaster exhaust, a tranny cooler, bush bar and my undieing affection. I live on the east coast of Canada, and we have been inundated with snow already. I also work for our department of forestry, and let me tell you, this truck does NOT disappoint. I can't see ever getting rid of this baby.

27th Dec 2003, 19:05

I recently bought a 1989 GMC Sierra SL 2WD 4.3v6 3spd Automatic 89,000m the truck would idle rough even stalling out at a stop or on the highway. I replaced the thermostat and noticed a ground wire disconnected. I reconnected the wire and truck has run smoothly ever since! I will keep this truck forever...

6th Mar 2004, 12:02

I Have had my Sierra 2500 since it was taken off of the showroom floor. Right now I am living in Vermont. Trust me the 4wd in this truck gets worked a lot. This truck has never let me down and is still running strong. This truck has a very limited 7.1 liter 454 V8. It has plenty of power to do anything that I can imagine doing. Right now it is at 210,000 miles and still running strong.

2nd Jul 2004, 12:14

I just bought a 89 GMC Sierra w/305 V8 and it has great power. It was my brother in law's and I don't have a clue why he gave it up, but his loss is my gain.I'm going to put some TLC into it and see how long she lasts.

29th Oct 2004, 10:07

Hi, I bought my 1989 GMC in 1998. now it has over 300k miles on it. it had an overhaul 3 years ago and it always works great. I love the truck because it never puts me down I have never gotten stuck in the mud, the only problem that am having now is that my battery dies if I don't use my truck for one day. if you know what might be wrong please write to me at danny6892002@yahoo.com thanks.

4th Nov 2004, 11:11

Well, I thought I would update things. I was the guy from Eastern Canada who worked for Forestry. Don't work for Forestry now, but still have the truck, still love it. However, it just cost me a small fortune. The rear end went in it, and it turns out that the original owner had it special ordered, so the rear end is a 3.73 instead of the standard 3.42. Lots of fun finding a reasonable replacement. That being said, the old girl is still humming along. Now if only I could afford to get the body done...

27th Feb 2010, 10:44

I just bought an 89 Sierra 2500 running for $500. I hate anything General Motors and expect this truck to blow up at any time. GM makes crap and that's why they went bankrupt. But the truck looks good and had the right price. We'll see if it was worth the money, or just another example of the poor quality I've come to expect from GM. It's in the shop for a full tune up. So I'm giving it the best chance to show me I'm wrong... I'm sure I'm not, but I'll let you all know. At this point it's at 193560 miles. About 100 thousand less than what I normally get from my Fords.

16th Mar 2010, 19:51

I have had my 89 GMC 1500 with the 350 for a year now and love it.

I have had to fix some small things on it, but it's 20 yrs old and I live in NY. So rust is always a problem.

I mud this truck all the time; never a problem, all things with it. Drive it all winter long. This thing just goes everywhere and never had a problem.

I don't know about the person saying Fords outlive a GMC product, because in NY I see more GMC products outlive Fords all day. But maybe that's just up here.

In my opinion I would keep this truck forever if I could. But the rust will eventually over come the truck. But so far, I couldn't ask for a better truck.

19th Apr 2010, 06:18

I have a 1989 GMC Sierra SLE, purchased in 1991 with 28,000 miles on it then.

It has taken me from coast to coast, border to border, and has never let me down.

I have always done the preventive and repairs on it myself, and it now has 343,000 miles on it.

My wife got a new car, so I kept her old one to drive and placed my 00 in the garage. Started it every month, and now after almost 2 years, have got it out and driving it while doing the small pm.s to it.

Today I am replacing the 2 injectors, which have never been replaced. The engine has never been worked on internally; only plugs and a few external replacement parts.

Started smoking from #1 cylinder, and have started using restore oil additive, and it is now fine.

Love it very much, and it is definitely the love of my life in trucks.

Going to get it painted to original color of tan and gold. She's a short bed and still looks fantastic.

I get 18 to 19 mpg with the 5.7l engine, auto trans. Run wrangler tires.

Looking to that 500,000 mark before I will do the engine.

She is a breed by herself. Next door the guy got a new 2010 Chevy; he can't get past 14 mpg. Great looker, but it sucks compared to my baby.

12th Sep 2010, 07:01

Would like to know where I can buy a set of center caps for my 1989 GMC 1500 PU? Must look original.


11th Apr 2012, 23:50

Where did you order the Denali front end from? I have a 1994 GMC Sierra, and am looking into giving it a bit of a face lift.