might be needing a new tranny... need opinions

[Avery4jc]

I agree if you are choosing between the 4L80E and the 700r4 go w/ the 4L80E although I doubt you'll come out in the same price range, if that was true everyone would run one. The stand alone controller for the 4L80E is going to run at least a grand, then factor in an even stock tranny and your well over $2,000 where as a decent 700r4 would be well under 2G's.

Oh, and I know everyone rants and raves over the diesel torque and grunt but in my opinion from what I've heard the 6.2's are not anything to write home about, I believe they are GM's first attempt at a diesel in a passenger rig and they were just converted gasoline engines. Sure they are cool compared to a 20 year old 350 (even w/ work done) but compared to today's standards they are a pebble against a boulder. I'd say look into finding a wrecked Chevy and get started on a duramax project, or find a dodge and drop a cummins in it, that would be sweet as well.

You'd be surprised, there is a guy selling a tranny out of a Caddy CTS that retails for thousands for only like $900 on Craigslist so keep your eyes open.

-Avery

 

[daleearnhardt01]

I agree if you are choosing between the 4L80E and the 700r4 go w/ the 4L80E although I doubt you'll come out in the same price range, if that was true everyone would run one. The stand alone controller for the 4L80E is going to run at least a grand, then factor in an even stock tranny and your well over $2,000 where as a decent 700r4 would be well under 2G's.

Oh, and I know everyone rants and raves over the diesel torque and grunt but in my opinion from what I've heard the 6.2's are not anything to write home about, I believe they are GM's first attempt at a diesel in a passenger rig and they were just converted gasoline engines. Sure they are cool compared to a 20 year old 350 (even w/ work done) but compared to today's standards they are a pebble against a boulder. I'd say look into finding a wrecked Chevy and get started on a duramax project, or find a dodge and drop a cummins in it, that would be sweet as well.

You'd be surprised, there is a guy selling a tranny out of a Caddy CTS that retails for thousands for only like $900 on Craigslist so keep your eyes open.

-Avery

First you can find a stand alone computer for cheaper than $1000.

And its pretty obvious you dont know anything about a 6.2 since you say "from what Ive heard". First, the 6.2/6.5 were not just converted engines. The 6.2 was jointly designed by GM and Detroit Diesel, back when Detroit was a part of GM The 6.5 is a punched out 6.2. The 5.7 and 4.3 diesels were however just converted gas engines. Have you ever driven a 6.2/6.5 truck? Sure they dont have loads of power but they have plenty of torque, especially with James' low gearing. They also get great gas mileage, ask René, he gets in the 20's with a 6.2 and a SM465 and big tires. Obviously they arent gonna be close to today's standards, its 20 year old technology vs. the new... Do you realize the cost of even a wrecked Duramax/Alli combo? For what those go for you could buy several 6.2 trucks and just drop it in. How can you have an honest opinion if you've never dealt with one and just go on what you've heard?

 

[Avery4jc]

The same way most posts are made, by information that a person has read. I highly doubt that every post that is made to help someone is strictly based upon first hand knowledge, what's it hurt to take what you have read and pass it on?

You are obviously the high and mighty know it all so I'll shut up with my non-first hand answers and let him get a single sided answer from the god of mechanics.

Oh and as far as the stand alone computer, please prove me wrong. That has just been the bottom end price for the controllers I have found.

-Avery

 

[daleearnhardt01]

The same way most posts are made, by information that a person has read. I highly doubt that every post that is made to help someone is strictly based upon first hand knowledge, what's it hurt to take what you have read and pass it on?

You are obviously the high and mighty know it all so I'll shut up with my non-first hand answers and let him get a single sided answer from the god of mechanics.

Oh and as far as the stand alone computer, please prove me wrong. That has just been the bottom end price for the controllers I have found.



-Avery

Avery, personally I dont like to give opinions on things unless I have actual experience with them but more importantly I try not put out incorrect information so sorry if you got offended but I had to correct your incorrect facts..

 

[Avery4jc]

Avery, personally I dont like to give opinions on things unless I have actual experience with them but more importantly I try not put out incorrect information so sorry if you got offended but I had to correct your incorrect facts..

Ok, I was in an extremely stressed state of mind, we had my sister's going off to college party tonight and we have been working on it for months and have been going like gang busters for the last few days working on nothing but the party. There were more than 140 people that came tonight and it was a great time so now I'm feeling better.
I'll try to remember not to post when I'm stressed or p.o.'d at something.
Sorry for the hijack muddybuddy, back to your tranny.

-Avery

 

[tRustyK5]

No need to get all bent out of shape guys...this isn't the lounge ya know.

The 6.2 is a decent option for wheelin and fuel economy, certainly one of the best things I did to my truck. With good gearing and a manual tranny they make more than enough power too. With an SM 465 and running 39.5's I average between 16 and 17 mpg on the freeway. I wish it got in the 20's, but without OD it just spins at too high an rpm. Once the NV4500 goes in my truck should see 20+ mpg on the highway.

An NV4500 is a good option, however it will not be cheaper than a rebuilt 700R-4 unless you get real lucky. You'd have to factor in the cost of a new flywheel, clutch and pressure plate, hydro or mechanical clutch stuff plus drivelines. The good thing is a 208 or 241 bolts up to it easily.

As far as the performance of the NV4500 offroad versus the sm 465...they're going to be virtually identical. The 465 and the NV4500 both have granny low gears, and second through fourth are pretty much identical. The mudding I have done with my truck I did in second/low range, but had 3.73's and small 35's. With my current combo I'd probably use third/low range for a little more wheel speed. The sucky part is you pretty much have to pick a gear and stay with it. Both tranny's you are not going to be able to shift fast enough in the mud. It will be easy to redline...

Rene

 

[muddybuddy]

i hear you rene, i kinda like the idea of the nv4500, but where i live currently, there are so many damn people and traffic is a pain...i can see how a manual would get old real fast im going to look more into the 4L80e and compare prices with a built 700r4. so for my stupid mind, a built 700r4 will have no trouble what so ever with the 6.2 correct? i want this to be the last time i have to deal with the stupid tranny

 

[tRustyK5]

Truth be told if you truly don't ever want to worry about a tranny again then I still say manual tranny. Might cost a few more bucks to go manual initially but you will only do it once.

With a hydro clutch it'd be no worse than driving any import with a manual tranny...

The 700R-4 came behind 75% of all 6.2's from the factory so yeah they can and do live behind the diesel without too much trouble. The convertor is different and I think the flex plate is too. If you do decide on a 700R-4 rebuild get a brandy new TV cable and have it adjusted by whoever builds the tranny. I suspect a lot of early failures after a rebuild are due to a stretched TV cable or an improperly adjusted TV cable.

Rene