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2000SuburbanLS

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snoman Senior Enthusiast

snoman

Posted
Posted
There is a lot of good info here

 

http://www.randysringandpinion.com/index.html

 

I think with 33's you should be fine with the stock gears. I have 34's on my HD and tow a 19 ft boat with the stock gears, no problem.

And it is a dog with 3.73 and 34 towing too, do not BS me. OD is worthless too (might as well dump it for a THM400 beacuse you will need it) and that is not fine at all. 4.10 would be border line with 33 and towing with 4.56 even better. Of course he could take you advise and have 25% less pulling power with 3.73 vs 4.56 in a 2wd truck with no lower range to fall back to or he could install 4.56's and reduce tranny strain 25% at any given load and still have a nice 2100 rpm cruise at 65 in OD with a OD that is actually usable.

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BlackMagic Enthusiast

BlackMagic

Posted
Posted
I'm not sure I have to do it.

Anytime you go bigger in tire size you are sacraficing power, unless you regear. He said "Do I Have To", and the answer is no!!!! Is it a good idea, probably, but there are other ways to spend your money. Exhaust, chips, blowers, intake....

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snoman Senior Enthusiast

snoman

Posted
Posted
I'm not sure I have to do it.

Anytime you go bigger in tire size you are sacraficing power, unless you regear. He said "Do I Have To", and the answer is no!!!! Is it a good idea, probably, but there are other ways to spend your money. Exhaust, chips, blowers, intake....

No you do not have to if you want a doggy truck, added driveshaft, transfer case, engine and tranny strain. No wizardry is going to correct this problem short of gear because engine will be turning less RPM at any given speed and be working harder to do it no matter what you do. The torque converter will also ride on the stall longer (making extra heat and wasted fuel) because everything is turning slower but requireing a lot more torque to do it. There is no free lunch here and trucks do not run in a vacum. Bigger tires not only raise effective ratio they add more drag to the mix too from more rolling resitance and increased truck drag from higher hieght. It is a lose lose situation if you do not regear properly. There are those still that have there head in the sand that think you can greatly increase tire size on a truck and have no effect on its operation. Sure, you can leave it like it is and have OD about worthless and use second on long hills on interstate pulling a heavy trailer (not me) and shorten tranny life and blame GM when tranny fails or you can regear it and have the truck run the way it was meant to be and a OD that really works properly. Belive me new gears are cheaper than chips, mods, dual exhaust and a new tranny, a LOT cheaper.

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snoman Senior Enthusiast

snoman

Posted
Posted
I can tell that you like to be right, but you still haven't answered 2000SuburbanLS's original question? Does he have to? No. Do I have to? No!

In your opinion but you seem to like slow trucks and 4 speed autos with only 3 speeds usable and shorter tranny life. Maybe he does not? (most people do not either)

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snoman Senior Enthusiast

snoman

Posted
Posted
chill out snoman. not everyone knows everything, including you. it seems like every time I see your posts you're arguing with someone. go plow a road and have a freaking beer.

 

:thumbs:

I am chilled it is just I hate to see the blind leading the blind because any one who says a 3.73 with a small block and 34's is a great tow vechical has very low expectations indeed. It is a real counterdiction to have a big beefing looking truck with big tires for that "macho" look and have it down graded to a slower 3 speed that can get bested by a 4cyl toyota and v6 pickup because the owner wants to believe that tire size has no effect on vechical performance or gearing requirement and the life of the drive components and try to impose that belief on the unknowing.

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txpkup Enthusiast

txpkup

Posted
Posted
chill out snoman.  not everyone knows everything, including you.  it seems like every time I see your posts you're arguing with someone.  go plow a road and have a freaking beer.

 

:thumbs:

I am chilled it is just I hate to see the blind leading the blind because any one who says a 3.73 with a small block and 34's is a great tow vechical has very low expectations indeed. It is a real counterdiction to have a big beefing looking truck with big tires for that "macho" look and have it down graded to a slower 3 speed that can get bested by a 4cyl toyota and v6 pickup because the owner wants to believe that tire size has no effect on vechical performance or gearing requirement and the life of the drive components and try to impose that belief on the unknowing.

you heard him, you guys are blind.....BOTH of you!!! :cheers::mad:

 

man he never said it was a great tow vehicle. he said "no problem." And you're being a tool and acting like he insulted your family, "Don't BS me, I'm argumentative."

 

So to answer this poor guys question:

 

No you don't HAVE to re-gear. You'll lose power if you don't though, and it will cause more strain on the transmission. How much? Let the pissing contest begin!

 

But no you don't have to. People DON'T do it all the time. Your truck is still perfectly driveable. But if you don't you'll speed up the process of transmission problems.

 

I just recently had to have my transmission rebuilt (I'm still paying it off even). If you feel like doing something fun this summer................do something else.

So anyway, I'm all for doing anything and everything that helps out the tranny. I would suggest re-gearing. Can't really go wrong can you? Puts a little dent in the wallet, but at least you'll have plenty of PWR and don't have to worry about the tranny as much.

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snoman Senior Enthusiast

snoman

Posted
Posted
chill out snoman.  not everyone knows everything, including you.  it seems like every time I see your posts you're arguing with someone.  go plow a road and have a freaking beer.

 

:thumbs:

I am chilled it is just I hate to see the blind leading the blind because any one who says a 3.73 with a small block and 34's is a great tow vechical has very low expectations indeed. It is a real counterdiction to have a big beefing looking truck with big tires for that "macho" look and have it down graded to a slower 3 speed that can get bested by a 4cyl toyota and v6 pickup because the owner wants to believe that tire size has no effect on vechical performance or gearing requirement and the life of the drive components and try to impose that belief on the unknowing.

you heard him, you guys are blind.....BOTH of you!!! :cheers::mad:

 

man he never said it was a great tow vehicle. he said "no problem." And you're being a tool and acting like he insulted your family, "Don't BS me, I'm argumentative."

 

So to answer this poor guys question:

 

No you don't HAVE to re-gear. You'll lose power if you don't though, and it will cause more strain on the transmission. How much? Let the pissing contest begin!

 

But no you don't have to. People DON'T do it all the time. Your truck is still perfectly driveable. But if you don't you'll speed up the process of transmission problems.

 

I just recently had to have my transmission rebuilt (I'm still paying it off even). If you feel like doing something fun this summer................do something else.

So anyway, I'm all for doing anything and everything that helps out the tranny. I would suggest re-gearing. Can't really go wrong can you? Puts a little dent in the wallet, but at least you'll have plenty of PWR and don't have to worry about the tranny as much.

Just stay on flat ground, do not use OD, do not pull a trailer and travel behind semi's to cut wind loading to try to say a little money on fuel to save up for when the tranny fails.

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Frank S Senior Enthusiast

Frank S

Posted
Posted

Look guys,seriously.We're all adults here and we're also here because we like trucks,most of us primarily GM but all owners are welcome.What is not welcome are childish spats over technical info because,and d**n I feel like a freaking broken record here,info is goos but BS spats take away from discussions.

 

Now,it's known that snoman and I did not see eye to eye on a thread a few weeks ago but I believe we are both mature enough to see the other's opinion.These kinds of debates are almost endless but good discussion backed up with numbers along with real life personal experience is what people who are asking the questions are looking for,not name calling or baseless accusations.

 

Now,on this vehicle in particular,IMO,a minimum of 4.10 gears would be beneficial.I realize that the majority of 2wd 2000 Subs came with 3.42 and I believe that there was an option for 3.73's.Now,4.56's might be somewhat lower than you want but if you do moderate or higher towing you would benefit from those gears.If you tow sporadically and never more than a moderate load,4.10's would be ideal for you.

 

That being said,you absolutely do not have to regear but you are taking more of a risk in burning the tranny.It's up to you really but if you did have 3.42's stock,you might do better to upgrade your gearing just a little bit to compliment for everything else involved.

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