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I am purchasing an automatic 99 3500 extended cab 4x4 in FL next weekend. The truck has a new Monster Trans with less than 2k miles on it, a Fass pump, CAI and exhaust but other than that, she's unmolested. I will be using this truck for towing my 5th wheel toyhauler which comes in at about 17k lbs. What upgrades do yall recommend I look into in regards to ensuring that kind of weight won't be a problem? She won't accumulate very many miles either as I typically ride my Harley to work, so only when its cold or raining.

I look forward to hearing from you guys,
Matt
 

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A simple shift kit and upgraded torque converter if your trans is stock. From there the truck will come alive with a tuner. Turbo could be upgraded to a he351cw for more response and flow if wanted.

That's as far as I would take it, any more and it becomes more fun and less work truck.
 

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dont listen to the manual swap guys. a perfectly built auto will do just fine. id get an exhaust brake and an iquad. maybe some small injectors if you want the stock turbo or look into a turbo/injector combo that works for what you are doing. biggest thing is an exhaust brake. you gotta stop what you are pulling! ive never had any issues pulling my 7x14 dump trailer with 15k of broken concrete. stopping is another thing >:)
 

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dont listen to the manual swap guys. a perfectly built auto will do just fine. id get an exhaust brake and an iquad. maybe some small injectors if you want the stock turbo or look into a turbo/injector combo that works for what you are doing. biggest thing is an exhaust brake. you gotta stop what you are pulling! ive never had any issues pulling my 7x14 dump trailer with 15k of broken concrete. stopping is another thing <img src="http://www.cumminsforum.com/forum/images/CumminsForum_2016/smilies/tango_face_devil.png" border="0" alt="" title="Devil" class="inlineimg" />
A "fully built" auto is fine. A stock auto is far from it. Lol unless you have a bad leg, and cant use a clutch, manual swap+exhaust brake=the real deal.
 

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Discussion Starter #7
Thanks for the info guys but I stated in the original post that it has a new Monster Transmission in it already with less than 2k miles on it. Other than a tranny, is there anything else yall recommend?
 

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Not sure what all is done to a monster transmission. if it鈥檚 stock parts it won鈥檛 last behind a even mild tuned truck, especially when towing heavy.

What exactly is you goal with the truck. beside the lift pump and trans they do fine stock, so it really depends what you have in mind.
 

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A "fully built" auto is fine. A stock auto is far from it. Lol unless you have a bad leg, and cant use a clutch, manual swap+exhaust brake=the real deal.
it doesn't even need to be "fully built". if you are strictly going for towing, as the op mentioned, the weakest link in the 47re is the torque converter. all i have is an upgraded converter and vb and i haven't broke anything yet with 235k miles. and i have 110 horse injectors, stock turbo and an iquad that i turn down when towing and so far its held up great. the only reason to ever have a "fully built" tranny is if you are looking to crank out 500+ hp as a daily driver and then tow 15k+ pounds a few times a week. if i was going to drive my truck during the week and then do a tractor pull or two every month then i would look into upgrading the shafts, clutches etc...not that i'm advocating against a manual swap but i just cant justify the materials and labor involved unless you get the tranny for practically nothing. if you put that money towards a solid torque convertor and rebuild kit for an auto, you would probably be better off. unless your truck is just cursed from the get go or something along those lines lol.
 

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it doesn't even need to be "fully built". if you are strictly going for towing, as the op mentioned, the weakest link in the 47re is the torque converter. all i have is an upgraded converter and vb and i haven't broke anything yet with 235k miles. and i have 110 horse injectors, stock turbo and an iquad that i turn down when towing and so far its held up great. the only reason to ever have a "fully built" tranny is if you are looking to crank out 500+ hp as a daily driver and then tow 15k+ pounds a few times a week. if i was going to drive my truck during the week and then do a tractor pull or two every month then i would look into upgrading the shafts, clutches etc...not that i'm advocating against a manual swap but i just cant justify the materials and labor involved unless you get the tranny for practically nothing. if you put that money towards a solid torque convertor and rebuild kit for an auto, you would probably be better off. unless your truck is just cursed from the get go or something along those lines lol.[/QUOTE

Yeah I will be keeping the auto tranny for sure. Do you have any plans for a slightly bigger turbo?
 

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Discussion Starter #11
Not sure what all is done to a monster transmission. if it鈥檚 stock parts it won鈥檛 last behind a even mild tuned truck, especially when towing heavy.

What exactly is you goal with the truck. beside the lift pump and trans they do fine stock, so it really depends what you have in mind.
Just towing my 5th wheel once or twice a year. She will be my truck to get to work when its raining. Most of the time it'll be parked.
 

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I didnt know Monster did anything with 47re's. I know they do a ton of GM stuff, like the 4l60e (with little success as far as longevity, in my case.) But honestly In a daily driver situation, auto is convenient. Almost, dare I say... a luxury.
 

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Got news for you... There is no 2nd gen that is perfect. We full timed for 2 years all around the US in a 2001 3/4 ton and a 9k trailer. Trailer is 1000 pound on a trailer hitch. Your 5th wheel will have a king pin weight of 15-20 percent of gross 5th wheel weight. That is a lot of weight. I'm on west coast, so mountain grades and downgrades come into play. IE I don't want to wear out the brakes going some mountain and I want to be able to stop. So I installed an exhaust brake, that I love. There is a lot of 2nd gens with 3-400,000 miles and some good looking 1st gens out there also. Some of the real old 1st gen guys are charters, always enjoyed talking with them. Some of them carry enough to rebuild about anything.

Here is what works for me (you'll be different because of 5th wheel and weight.)
Stock trans auto... that I baby'd all the time. Next summer I hope to have a built trans in mine. Always worried about it giving out in middle of nowhere. Tighten/adjust trans bands and changed fluid every 15,000 miles. I don't go over 12 on the pyro. And exhaust brake. Just me, you will be different and that's OK.

Full set of gauges. Most important in order is fuel pressure and pyro and trans and boost, IMO
Exhaust brake. (you might not need one if you only go where it is flat land)

With our 9k trailer we just fall in line with the big trucks any mountain grades, which means everybody with 50-60 thousand dollar trucks are going to fly by you. Which is OK with me, I'm not going to give my state $5,000 dollars (Taxes for new truck) But I am thinking about adding some type of tuner, and some RV 275 injectors, but for now completely stock as far as power goes. I'd have some type of power already if my trans was built. Most of the guys flying by you just flip the lights green for you anyways when you get off the freeway. But I get pissed getting passed every single day on long trips, so get a good music machine. Radio or online stuff.

You don't know where you will break down at and it will happen...so download the manuals and keep them in your computer or buy the hard copy's. I do carry a carter pump as a back up. When my FASS broke I couldn't do the work myself as RV parks don't let you work on stuff in their park. Fuel line is all 1/2 with JIC fittings with turn off valves. Takes me about 20 min to change out pump now. Old FASS was 11 years old when it went. Replacement was Airdog 95 or 100? Airdog was overnighted to me, and FASS would of taken 3 days for some reason. No brand loyalty or one is better than the other for me. Both are elec DC motor, so they are not going to last forever. I would of went the glasier pump system when my FASS broke but everything already plumbed so why bother? Now if it ever happens again, turn shut off valve on both sides of airdog. Unscrew JIC fittings, unplug elec, put in carter back up pump, reconnect elec and turn shut off vales to on. No priming, and about coffee cup full of fuel and 2 Crecent wrenchs. Then pick up new pump as soon as possible, but don't wait around in some jerk water town for new pump. Continue with trip, even thought fuel pressure is now about 10-12 psi. WOT down to 8psi :)

Something to think about... I think you are going to need air bags and they are going to be competing the same space as your 5th wheel brackets... on the frame rail right above your axle tube. So look around as maybe something on the market now that you won't have to get any custom welding done in order to get air bags and 5th wheel bracket mounted. We had a smaller 5th wheel and when we went to a trailer that was large enough that I need airbags was when I discovered both are competing for same space. But that was in 2005, so maybe today you can find something that will solve that problem of air bag and bracket in same area.

OK everything just my opinion.
 

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Yeah I will be keeping the auto tranny for sure. Do you have any plans for a slightly bigger turbo?
not in the immediate future. it would be nice to find something that could take full advantage of the injectors but i have it tuned down with the iquad to work just fine. its strictly a tow/daily rig. of course after i got the motor back together i wanted more but my money tree in the backyard died a few years ago and i'm having a hard time finding a good replacement :wink2:
 

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Full set of gauges. Most important in order is fuel pressure and pyro and trans and boost, IMO
Exhaust brake. (you might not need one if you only go where it is flat land)
i did forget to mention guages too. def want a tranny temp, fuel pressure and pyro at least but if you get an iquad that will monitor all those things and more. you will need to purchase a seperate sending unit for the fuel pressure..
 

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A 鈥淢onster transmission鈥 isn鈥檛 very specific... hopefully that means it鈥檚 got all the upgrades in it. Especially the converter and valvebody.

All the airbag kits I鈥檝e seen mount outboard of the frame rails and don鈥檛 pose any issue with a fifth-wheel hitch. I鈥檓 using the Air Lift Kit.
If you get bags, definitely get the onboard compressor for them. Totally worth it.

If towing heavy is the goal, a compound turbo setup (and head studs) would be ideal. You can鈥檛 use any extra power under a heavy load unless you鈥檙e really moving lots of air.
I鈥檇 have done it already but things changed, I鈥檓 no longer carrying my camper while towing a heavy trailer. And I鈥檝e kinda shut off the money faucet pouring into this old truck. It鈥檚 got twice what I could sell it for into it, you want to try to avoid that.

I鈥檇 look hard at doing a P-pump swap. Reliability is the single most important thing when you鈥檙e hauling your RV trailer.
Ultimate reliability can鈥檛 be had with a VP44 injector pump.
 

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Just towing my 5th wheel once or twice a year. She will be my truck to get to work when its raining. Most of the time it'll be parked.
Again it a preference thing and I'm still not sure what you want the truck to do other then dd and tow a trailer. Performance, stopping, ride quality, it's endless..

If you were to ask me compounds, p-pumping and all that stuff is a waste of money in the end, it's fun and all but looking back I would of just put a Quadzilla and Exhaust brake on the truck and called it good.
 

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Discussion Starter #18
Love all the advice guys, Thanks! I'm gonna keep it simple, no compounds or p-pumping, nor do I want a huge turbo in it. Probably gonna just make sure she's got enough air to breathe and keep those EGTs down, maybe slightly bigger injectors (nothing bigger than 100hp) for the fuel to air ratio, a tuner, an exhaust brake and an upgraded vp44. I tow with a goosebox on my RV so it goes to a gooseball, no worries there for me. Lastly an onboard air system for bags and filling up tires would be nice.
 

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There really isn鈥檛 an 鈥渦pgraded VP44鈥.
While some do it for performance reasons, a P-pump is the only real injector pump upgrade and the benefit I want it for is reliability.
VP44s are prone to sudden failure without warning and I don鈥檛 want that in the middle of nowhere.
Fortunately my last sudden no-warning VP44 failure was two blocks from home.

While there isn鈥檛 a better VP44 you can install a better lift pump and you definitely should. The stock fuel delivery system sucks.

Most of the onboard air compressor kits for the air bags have an option for a cheaper pump or a better one. Get the better one, especially if you want to inflate tires. Those pumps aren鈥檛 meant for much duty cycle. They鈥檒l be pretty hot by the time they fill a truck tire.

I kinda wish I had gotten the wireless remote control, because I wouldn鈥檛 have another thing screwed to my dash and they have memory presets. You can just have a camper on and camper off position. That鈥檇 be cool.
 

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I'm not sure you can "keep it simple" if you want to pull a 17K pound trailer with a truck rated for 12.
Make sure you have plenty of cooling flowing through the transmission.
(I did miss that it's not stock)
 
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