Dirt Master80

i would recomend the sm465 its a 4 speed with granny low,its bomb proof and the 1st gear is around 6.8 to 1 you dont need t-case gears if you have a first like that

ffryno13

yeah thats true but i already have my dual cases. is the stock 5speed with a 4.3 strong enough? idk maybe ill scrap the supercharger idea and just build the motor a bit i want about 250hp and torque out of it. everything is being re built from the ground up including a ext cab swap drive train lift for a flat under belly. and a some super beefy axles and ARBs

Dirt Master80

i dont know mutch about the 5 speeds found behind the 4.3 stock. you maynot be able to get an adaptor for that trans to the toyota t-case. i know you can get 4.3 to toyota 5speed or t350/700r4 to toyota t-case. if you want to run a toyota 5speed i would recommend the v6 5speed. i have a few freinds that have gone through multiple 4cylinder 5speeds when mated to the 4.3. or the rare turbo 5speed

ffryno13

i found the adapter for the toy-chev. i wouldn t mind having a auto but isn't the wiring going to be a lot harder. since i have a 5 speed.

Dirt Master80

painless wiring has everything you need for wireing conversions including the trans
http://www.painlessperformance.com/

ffryno13

huh. is the auto going to rob a lot of the horse power i am trying to make. cuz i think it kinda would. i ev only had one auto in my 77 ford but i had a 514 big block beast in that thing it was a c-4

Dirt Master80

you may lose alittle but you gain a tourqe converter and unbeatable mudding and hill climbing ability. Just stand on it and let the trans do the work for you. almost every truck that competes in top truck challenge runs an auto for a reason

ffryno13

true that. so if the turbo 350 and 700r4 are pretty much the same then where does the turbo 400 fall in. pretty much which auto should i run with

Dirt Master80

t400 is a good trans too its the big brother to the t350, i think its alittle overkill for a 4.3. you could also get into the 4l60e and 4l80e newer trans. this is the (problem) with chevy you have too many options.lol. the t350 are dirt cheap and dont require electroinics, the 700r4 has the lower 1st and over drive for the highway its what i would recomend,t400 is overkill imo,and the 4l's are complicated and expensive

ffryno13

sounds like the 700r4 wins. i already contacted painless earlier this week. i am leaving on vacation and then there are rumors i am being deployed to iraq so i am going to start this as soon as i can. thanks for all your help.

86toylet

700R4 is a good choice

jusfloorit

Man, if you're gonna go all out, then go for the v-8. Think about it. 250hp is a pretty stout built v-6. OR a very mildly built v-8. What if you spend all this money on conversion and engine work (porting, cam, intake) only to think if i had 300hp this truck would rule. Especially if you're frame deep in mud on 39's, that v6 is gonna feel like a 22r again.

If you're gonna get some bad ass axles then get a bad ass powerplant to make a bad ass truck.

My .02

Also with an auto trans, consider the torque converter to be a torque multiplier. With interchangable stall speeds you can set your stall at the peak torque of your motor and apply that amout of torque from a standstill. Better then double clutching and downshifting all while losing momentum or a solid footing on a rock.

Yes you lose a little bit of power but at the expense of better control of the power you have.

Just putting out the options for ya. Good luck.

ffryno13

the thing is that i live in oregon and we really don t have alot of mud where i go wheeling its mostly rocks and the 39s are going to be for a little bit more show then function. i could keep running 37s and still be happy with it. most of the people that have lifts and big tires don t wheel their trucks they just talk big game. and i just built this truck to show everyone that you can have a nice truck and still wheel it. and its a DD. if i feel the need for a v8 then i ll just supercharge the lighter v6.

i am affraid if i use a v8 then i ll start braking stuff and i plan on using my toy dual cases.