Medium and Heavy Trucks

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I have a 1992 Freightliner FLD. My dash was registering 70
I have a 1992 Freightliner FLD. My dash was registering 70 mph but realized it registered 5mph over actual speed. So I was originally going 65 mph but now whenever I drive past 60 mph it loses power a… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
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I have a Freightliner 1996 truck I am going to purchase it
I have a Freightliner 1996 truck I am going to purchase it has a bad transmission there is a 9-speed currently in the truck I want to upgrade the transmission to a 13 speed does anybody know if I can … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
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I just switched out the axles from 2.53 to 3.55... Kenworth
I just switched out the axles from 2.53 to 3.55... … read more
Mike Mcmillan
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Looking for specs on a 1986 Peterbilt 359 truck. All I get
Looking for specs on a 1986 Peterbilt 359 truck. All I get from the "free" vin search sites are very general info. Do you have a good site that give expanded specs or could you provide them for vin # … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
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I have a spicer 5 sp transmission model e s(?)53-5d behind a
i have a spicer 5 sp transmission model e s(?)53-5d behind a dt466e wish i had more road speed what transmissions would bolt straight up and provide improvement of road speed spicer 7 speed?… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
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I saw the answer about the under powered Mack engines CH635
I saw the answer about the under powered Mack engines CH635 330-350 hp. I also have two of these trucks. I have deleted the egr coolers but did not help much. Presently these trucks have rear differen… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
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Have a 9 speed transmission in 2012 587 Peterbilt has a
Have a 9 speed transmission in 2012 587 Peterbilt has a Cummings motor in it we want to change it to 13 speed what will be the out come of that move?… read more
Jim
Jim
Diesel tech.
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I have a 1999 Volvo dump truck with 7.3 diesel, 285 horse
I have a 1999 Volvo dump truck with 7.3 diesel, 285 horse power, automatic transmission, and 4.88 ratio Rockwell rear ends.Top end speed is 69 mph, but it doesnt have near enough bottom end power to g… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
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My Eaton Fuller 13 speed RTOC 18909A, it developed a severe
My Eaton Fuller 13 speed RTOC 18909A, it developed a severe grinding between low range and high range, only on the way up. What's the problem? what should I be doing to fix this?… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
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How to calibrate a speedometer on a freighliner fld120
I have a freightliner fld120 i recentrly change my differential ratio from 390 to 358 y have a 18 speed and 295/75/22.5 tires size Can you explaint me how to reset the speedometer pls… read more
Expert
Expert
My brother has a 1999 freightliner classic with a 13 speed
My brother has a 1999 freightliner classic with a 13 speed Eaton tranny, he has been having issues with the speedometer being erratic. He replaced the speedometer and still has the same issue. Any sug… read more
Roy Belding
Roy Belding
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What are the specs to get the best fuel mileage for a Detroit
What are the specs to get the best fuel mileage for a Detroit 60 series engine? from 2000 to 2007? and for the new style dd15 motor?… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
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how to fix grinding problem on a 2006 Freightliner 9 spd transmission?
how to fix grinding problem on a 2006 Freightliner 9 spd transmission? this only happens when going into high range.… read more
spankyjr1
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Vocational, Technical or Trade Scho
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How to calibrate the speedometer and get correct dip settings
How to calibrate the speedometer and get correct dip settings on 1992 379 after changing rear end ratio?… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
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i have a 3406e multi torque cat with 375/435 hp, i am going
i have a 3406e multi torque cat with 375/435 hp, i am going to turn up the horse power, my tranny is rated for 1650, whats the most hp i can turn up without having problems with the tranny?… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,747 satisfied customers
I have an eaton fuller auto shifting 8th 9th gear trans with
I have an eaton fuller auto shifting 8th 9th gear trans with a granny low is this called a 9 speed or ten speed and is it convertable to a 13 speedspeed will i gain any benifiton the top end iam hopin… read more
Steve
Steve
Self Employed
High School or GED
30 satisfied customers
cat c15 accert I have lp22.5 tires and I think the truck is
cat c15 accert I have lp22.5 tires and I think the truck is set for 11r22.5 2" difference in dia. What do I do to set the speed and such on the computer? I see the P/mile in configuration. I am guessi… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,293 satisfied customers
Hi i have a dump truck (12 wheels) ford lts 9000, 1995 with
Hi i have a dump truck (12 wheels) ford lts 9000, 1995 with a cat 3406c and a eaton-fuller trans. 8 LL. The rear axel are rockwell ratio 4.56. This is a very good truck. Is it possible to put a automa… read more
diesel-tech
diesel-tech
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136 satisfied customers
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Meet the Experts:

Daniel Wilson

Daniel Wilson

5,454 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

5,293 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

4,563 satisfied customers

worked on, Gmc, Macks, Freight liner,Mercedes Benz,,Ford, sterling

Jeremy

Jeremy

Certified Truck/Bus Technician

2,747 satisfied customers

ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, Network Engineer specializing in CAN faults, Aftertertreatment, and vehicle communications

cumminsdr

cumminsdr

Mechanic

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All types of Cummins applications

Curtis B.

Curtis B.

Technician

1,806 satisfied customers

Technician turned service manager on multiple lines of trucks and engines, used in industry.

Chris (aka-Moose)

Chris (aka-Moose)

Technician

462 satisfied customers

24 years of experience diagnosing & repairing

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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