Who does it? Is the set up the same as if you were setting up for a dmax? low side and 1st or let ally shift 2nd in t/h? thanks guys. any input is great

i'd say try and grab 2nd so the tc can lock. not sure where your powerband lies and what sort of wheel speed you'll achieve though

mild tranny mods, sleeves, blackbear agressive tune, straight exhaust, blocked, tbars down weight in the cab...

so 2nd t/h ease into her, get er rollin and hammer down? first time pullin

edit: sorry forgot 4.10s so what tire size should i try as well? thanks guys

if youre gona try to go 2nd you better blow em off coming out the gate and let it eat thats the way to do that around here on these tracks

ok so ec/lb 8100 ally bars down, clink strapped, weight bracket with 900lbs on front(have weighed her in before and can get her to 7060 no prob), 2nd low side t/h, getter movin and give her hell. sound like it will work and work well? of course blocked real and max hitch height

ally with shift kit trans-go aftermarket converter blackbear tune with all tm gone! straight exhaust and 1 headlight to look cool! what do yall think?

sounds good might be able to grab third with 4.10s, your 33in bfgs will work fine.

o boy... now who says 2nd or 3rd anyone tried it?

I say 3rd. Wheel speed is your friend.

so anyone else on 3rd or 2nd and wouldanything bad happen if i was running m/ts(dayton timberlines bout 1/2 tread)

MT's might have too much bite for ya. I'd stick with the bfg's.

ok cause the fronts are getting bald but the rears have some tread left... how bout 50 rear and 30 front??? thanks guys

so anyone else on 3rd or 2nd and wouldanything bad happen if i was running m/ts(dayton timberlines bout 1/2 tread)

4lo and 1st/2nd. A gear in between 1st and second would be nice.

You might be able to get second if you have a really deep gear, light sled, and no tires, but beyond that I don't see it happening (not saying it can't), but with the torque curve and power range of a gasser unless you have an atlas t-case or a stupidly deep R&P ratio, I don't see it happening on the types of sleds/tracks we pull on. Yours may be different.

With pulling a gasser and the alli, there is a big jump between 1st and 2nd. 1st is almost too deep and 2nd is too shallow (at least with a 261 tcase and 4.10 gears). In first you will probably be stuck against the rev limiter and in second you will probably loose too much RPM. If you can hit second at the right time, you may be able to make it work.

Try it and let us know.

4lo and 1st/2nd. A gear in between 1st and second would be nice.

You might be able to get second if you have a really deep gear, light sled, and no tires, but beyond that I don't see it happening (not saying it can't), but with the torque curve and power range of a gasser unless you have an atlas t-case or a stupidly deep R&P ratio, I don't see it happening on the types of sleds/tracks we pull on. Yours may be different.

With pulling a gasser and the alli, there is a big jump between 1st and 2nd. 1st is almost too deep and 2nd is too shallow (at least with a 261 tcase and 4.10 gears). In first you will probably be stuck against the rev limiter and in second you will probably loose too much RPM. If you can hit second at the right time, you may be able to make it work.

Try it and let us know.

x2 I seen one guy pull with a 8.1w/ally and all it did was gear hunt when he pulled with in 2nd. First gear and let it eat

The only ones I have seen did the same thing rev limiter in first and not enough ass in second. I have also seen 6.0 liters out pull 8.1 more than once. Must be the gearing in the 4 speed auto is better for the big block with the alli.

Jeff

so it might be rough but anyone think put it in first and tach it out then shift to seceond? or is t/h and 2nd the way to go... these are dang near bald 33s so i should be able to get the wheel speed. if anything i was worried bout not enough traction. ive seen a lot of 6.0's bouncing off the rev limiter in 1st and peter out in seceond but always figured the bb had the ass to handle it???

also what about going up to a 35 or down to a 31??? any ideas? would really like to be able to get seceond and hopefully she will and will take off!

so it might be rough but anyone think put it in first and tach it out then shift to seceond? or is t/h and 2nd the way to go... these are dang near bald 33s so i should be able to get the wheel speed. if anything i was worried bout not enough traction. ive seen a lot of 6.0's bouncing off the rev limiter in 1st and peter out in seceond but always figured the bb had the ass to handle it???

also what about going up to a 35 or down to a 31??? any ideas? would really like to be able to get seceond and hopefully she will and will take off!

31's will still probably not be small enough for second and less bite too. You are better off stepping up to a 35 as it will help keep you off the limiter as much (you will most likely hit it anyway)......

Unfortunately you would be better off without the Allison. The 6.0 had a better first gear behind them for pulling assuming the 4L80e with 2.75 first gear.

so i was saying 2nd ease into it get er rollin and give her hell. now im hearing 3rd or 1st... so 1st w/ 35s or 2nd 33s and hope for the best? and sorry for all the questions but first time pulling so i dont want to be embaressed

I really dont think the 8.1l will have the a$$ to pull the sled in 2nd. I have seen quite a few 600hp gas trucks that spin around 7000rpms try to pull in 2nd gear and they die out as soon as they hit second gear. On gas motors you lose rpms when it shifts to 2nd and rpms is what gives you wheel speed. But i have been proved wrong before. Try it and lets us know what happens.

ok here goes bud. i had and 8.1 with 305 claws and 3.73 gears and 1st was plenty. tried 2nd once and lost all power. one of my good friends had one with 4.56 gears and 265's and he could hit 2nd but lost a lot of power when it went yet 1st was too high. my suggestion to you is stick with 1st no matter what and try to get some 35's if you can. not an aggressive tire either. if you need any more help just ask cuz i pulled mine for 3 years and my friend pulled his for 2

so i was saying 2nd ease into it get er rollin and give her hell. now im hearing 3rd or 1st... so 1st w/ 35s or 2nd 33s and hope for the best? and sorry for all the questions but first time pulling so i dont want to be embaressed

That's what I would try.

With a tire that big I would definitely suggest rear traction bars.

ok 1st and 35's...? that what were doing? and sorry i will have trac bars as well forgot to mention

ok 1st and 35's...? that what were doing? and sorry i will have trac bars as well forgot to mention
forgot to mention give em hell:D!

all right... 1st w/ 35s... picking up the 35s tomorrow and then shes going under the knife!!! thanks guys. and i will be checking this for more input... please keep it coming with more ideas

what are you getting for 35's and what other mods are you planning on? if you look in my garage i think i have a pic of my old 8.1 reg cab with a 3in body lift and the 305 claws.

rear blocked front lowered and strapped. tranny has transgo jr and shift kit w/ ally deep pan. tcase just had ma pump rub installed. new amsoil in front, rear, case and tranny. sleeves and trac bars. solid hitch, blackbear tuned (maybe) with all tm gone. i think thats it and for the 35s im not really sure yet going to look later on today

don't bother strapping the front down if that's what you're talking about. just get pitman and idler supports and you're good.

why not strap?

i've had 3 HD models and have never strapped one yet

o well everyone around here with a dmax does... just figured id be cool. lol

I would suggest start out a little easy to get it goin then drive it like you stole it.:D