gearig and a four speed

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timbo350

Junior Member
Joined
Mar 25, 2012
Posts
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Location
okeechobee fl,
First Name
timothy
Truck Year
1984
Truck Model
k20
Engine Size
355
Does anyone have a 3/4ton square body 4x4 truck runnin 4:10's with 35"tires and a sm465 four speed and if so how do you like it I currently have 3:73's with 35"s and A 4 speed with a mildly built 355 at 65 im runnin 2,300 rpms but cant pull a trailer without runnin hot normally my trailer with the load weights 6,500 -7,000lbs I want to run 4:10's but would like some input from others!!
 

GreaseDog

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Aug 8, 2010
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Location
Elkhart, IN
First Name
Jeremy
Truck Year
1977 K20
Truck Model
1980 K2500
Engine Size
350
Does anyone have a 3/4ton square body 4x4 truck runnin 4:10's with 35"tires and a sm465 four speed and if so how do you like it I currently have 3:73's with 35"s and A 4 speed with a mildly built 355 at 65 im runnin 2,300 rpms but cant pull a trailer without runnin hot normally my trailer with the load weights 6,500 -7,000lbs I want to run 4:10's but would like some input from others!!

Upgrade your cooling system. Better investment than the minute difference you will see by swapping from 3.73s to 4.10s.
 

timbo350

Junior Member
Joined
Mar 25, 2012
Posts
28
Reaction score
0
Location
okeechobee fl,
First Name
timothy
Truck Year
1984
Truck Model
k20
Engine Size
355
this truck is all new it has a new 3 core radiator with the twin electric fan module from flexilite also theres a 14" flexilite fan in front of the radiator its just when i hook a trailer to it dont have the get up and go that i want im just wantin to see if any one has the setup that iwas talkin about and if they liked it before I go and do gears on my truck
 

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