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78 chevy with 350

  
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78 chevy with 350

 
teamracing14 teamracing14
New User | Posts: 12 | Joined: 11/08
Posted: 11/10/08
02:47 PM

what is a good tranny that can handle abuse for wheeling and some high rpm's? t400?   turbo 350?  

 
teamracing14 teamracing14
New User | Posts: 12 | Joined: 11/08
Posted: 11/10/08
02:52 PM

or any other tranny  i do have a lift  

 
Geo450racer Geo450racer
Guru | Posts: 842 | Joined: 08/07
Posted: 11/10/08
05:23 PM

yeah a 350 or 400 will work just fine, what trans is in the truck now?? But don't expect a trans to survive under abusive conditions just cuz its a good trans, you need to make sure you have a good cooler on it in conjunction with radaitot cooler and make sure you don't have really tall gears for tire size cuz that will cause lots of extra slip and heat in the tranny  
solid axle chevys cant be beat
78 K5: 350 V8,700r4,np208, 8 lug D44 4:88, 14 bolt 10.5 4:88 with detroit locker and 35 inc parenelli jones dirt grip tires

 
stempak stempak
New User | Posts: 39 | Joined: 10/08
Posted: 11/10/08
07:43 PM

Also a shift kit but 400 is better than a t350  

 
SnoMan SnoMan
Addict | Posts: 5783 | Joined: 05/04
Posted: 11/11/08
04:41 AM

Shift kits do not make trannies run any cooler and they are more for ego than anything. Shifts are modulated for a reason as it reduces shock on engine and tranny. Basically though trannies fail in lifted 4x4 not because of type or lack of a shift kit but usually because of lack or proper axle gears which forces tranny to ride torque converter stall a lot and slow bake. Some never seem to get this though and always blame the tranny. Some many trannies and so much down time could be saved if people would just properly regear axles with lifts and big tires.  

 
teamracing14 teamracing14
New User | Posts: 12 | Joined: 11/08
Posted: 11/13/08
09:40 AM

what gearing do you recomend? and i do not know what tranny is in the truck as of now though i know some that does know it should if find that out get a after market coolin system for it and regear?  

 
teamracing14 teamracing14
New User | Posts: 12 | Joined: 11/08
Posted: 11/13/08
09:53 AM

also i realy want a dana 60 and iheard about a460le ranny being alright?  

 
SnoMan SnoMan
Addict | Posts: 5783 | Joined: 05/04
Posted: 11/13/08
10:08 AM

teamracing14:
what gearing do you recomend? and i do not know what tranny is in the truck as of now though i know some that does know it should if find that out get a after market coolin system for it and regear?

What gear I would recommend depends on truck and tire size but generally with a GM OD tranny I suggest dividing tire size by 7.2 to get axle ratio. With a non OD tranny figure on about tire size divided by 8 as a compromise. On real axle, if this is a GM truck with a 4l60 I would suggest you upgrade rear axle to a GM 14 bolt 9.5 semi floater as it is about the equal of a D60 and can be had with 6 or 8 lug hubs. It is often overlooked.  

 
teamracing14 teamracing14
New User | Posts: 12 | Joined: 11/08
Posted: 11/13/08
10:30 AM

also id like to grt better mpg i read ina nother post about your good strong vortec getting good mpg whats the best way to get good gas on my 78 350 smaller carb? tranys? oh and with my 6inch lifyt and 35 tires  

 
teamracing14 teamracing14
New User | Posts: 12 | Joined: 11/08
Posted: 11/13/08
10:31 AM

i know it wont be good but id just like to bump it yup a little since im 15 and i have to pay for everything  

 
blazerfreak71 blazerfreak71
New User | Posts: 14 | Joined: 10/08
Posted: 11/13/08
10:50 AM

for example if your running 33's run 4.10 gears, 35s run 4.56 gears, 37/38's run 4.88 and anything bigger is 5.13-5.72... though with a 350 I wouldnt run anything bigger than 38"s... for fuel mileage a built 700r4 might be a better choice. you might also want to run an extra trans cooler and install a trans temp guage, B&M makes a good one( has color ranges for easy reference)  

 
Geo450racer Geo450racer
Guru | Posts: 842 | Joined: 08/07
Posted: 11/13/08
05:40 PM

dude if your 15 its gonna take you some 4 years   to pay for gears, tranny, axles ..... stick to what you got right now until it breaks and save money cuz this crap aint cheap  
solid axle chevys cant be beat
78 K5: 350 V8,700r4,np208, 8 lug D44 4:88, 14 bolt 10.5 4:88 with detroit locker and 35 inc parenelli jones dirt grip tires

 
teamracing14 teamracing14
New User | Posts: 12 | Joined: 11/08
Posted: 11/14/08
03:38 PM

i geeverything almost free my dad owns a auto company  

 
SnoMan SnoMan
Addict | Posts: 5783 | Joined: 05/04
Posted: 11/14/08
03:56 PM

blazerfreak71:
for example if your running 33's run 4.10 gears, 35s run 4.56 gears, 37/38's run 4.88 and anything bigger is 5.13-5.72... though with a 350 I wouldnt run anything bigger than 38"s... for fuel mileage a built 700r4 might be a better choice. you might also want to run an extra trans cooler and install a trans temp guage, B&M makes a good one( has color ranges for easy reference)

Not with a OD tranny...  Figure on 4.56 for 33's, 4.88 for 35's and 5.13 for 38's. This will give you best possible MPG with lift. (if you really want best MPG, do not lift and run street tires because all of this adds drag and uses extra fuel not matter what "gear" you run)  

 
stempak stempak
New User | Posts: 39 | Joined: 10/08
Posted: 11/15/08
07:57 PM

T400 a shift kit and tranny cooler you should be good to go. The less the tranny slips with a shift kit the less the heat the less the burning of the clutches. Big cams and auto trannies don't mix well, You might also have to lossen up your converter.

Or you build your 350 if that's what you have  

 
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