rick harper

Just delivered a new 2015 Mack CHU613 Rawhide

RON COX.htm

Just delivered a new 2015 Mack CHU613 Rawhide

anyone can buy a gold dog at the mack house and install.

I would think you could go to 505HP. You might have to change a few things per Mack.

NEW, NEVER INSTALLED MACK REMAN INJECTORS:

QUANTITY PART NUMBER APPLICATIONS

1. 736GB419M3X ASET ENGINES AMI-370 AI460

1. 736GB337P9X E6-275, E6-300 E6-350

3. 736GB321X ENDT676

50.00 DOLLARS EACH PLUS BUS RIDE.

OPEC knows our cost of drilling is quite costly compared to OPEC'S. With fracking and other new methods the USA is becoming a major player and could surpass other countries in the export of oil. OPEC doesn't want that and they do not what us to build the Keystone pipeline and other projects. That's why OPEC is keeping production levels high and driving down prices. If prices become to low it is not feasible to drill and service the rigs. It might be good for elderly people on fixed incomes that fuel prices are this low but it will hurt us in the long run.

Changing from 22.5 to 24.5 nothing wrong with that. You can mix aluminum with steel on the inside. Its proper to put the material between the aluminum and steel for corrosion purpose but you probably wont own the truck when they weld together.

distance is the bummer

they made 55K

How much for the trailer?? How far is the kingpin from the front of trailer?? Is the kingpin set up for single or tandems on the tractor??

10461045

SOLD

New LH door shell for CH models. Steel door. $250.00 plus shipping

New reman Delco 40MT starter. Do not want your core. $100.00 plus shipping.

When rebuilding or replacing whos responsible for this screw up. The customer usually doesnt know what ratio it is. The shop needs to check the gearing. Here is a formula to make sure. Count the teeth on the ring gear and pinnion. Also count the teeth on the bull gear and heli-cross shaft gear. E.G. ring gear has 17 teeth, pinnion has 16 teeth. The bull gear has 55 teeth and heli-cross shaft has 16 teeth. Divide the ring gear into the pinnion. 17 divided by 16=1.0625. Next divide bullgear into the heli-cross. 55 divided by 16=3.4375. The last step is to mulitply the two numbers. 1.0625 x 3.4375=3.65. Thats the final drive ratio of the carrier.

I thought this forum was for Mack Trucks. Lets keep the politics for another forum.

The trouble is mainly the driver forgets to pre select and overtime the sychros will burn up. Stiff shifting is caused by the 3 countershaft on a Mack vs two on competition. If you are mainly on the road I would give a hard look at the M Drive with the performance shift pad. A F1 transmission in a truck chassis. We have had no trouble as of yet.

When comparing swapping transmission keep in mind an old Mack five or six speed is a 1 to 1 final ratio in top gear. Most 13 speeds have a faster final gearing(overdrive). Also one usually has to cut or lengthen the driveshaft due to transmissions having different lengths. Bell housing need to be correct also. Here is a formula to compare speed. tire factor x rear axle ratio x final gearing divided into rpms. Tall 24.5 rubber tire factor is 7.93. Tall 22.5 rubber tire factor is 8.32. Lets say you have tall 24.5 rubber a Mack 13 speed and 4.17 ratio. 7.93 x 4.17 x .71=23.48. Lets assume top rpms is 2100. Divide 2100 by 23.48=89.4 mph. If your speedo head is mechanical it can read 5 mph faster than you are actually going. Also worn tires will decrease your speed due to rolling height.

to avg 50mph or plus you have to hauling your a-- off. I always use 30mph avg.

Two(2) of 440SX30A will do one(1) door.

NEW AND NEVER INSTALLED 4QK4006A ANTI-SWAY CAMELBACK SPRING, 44,000# CAPACITY WITH A 55" BOGIE SPACING. WE DONT RUN 55" SPACING IN OKLA.. NO RESEASONABLE OFFER REFUSED.

BELMOR WINTERFRONTS AND BUGSCREENS:

QUANTITY: PART NUMBER: APPLICATION:

10 7909-BS1181 RS/RL FS/FL BUG SCREEN

1 7909-BS1311 W MODEL BUG SCREEN

3 7909-WF1570 MH WINTERFRONT

2 7909-1938BQ RD BLACK WINTERFRONT

1 7909-WF1938 RD WHITE WINTERFRONT

2 7909-WF951 R, U, DM WINTERFRONT WITH FRAME.

NO REASONABLE OFFER REFUSED.

V-MAC MODULE TO CONVERT V-MAC I TO V-MAC II. PART NUMBER 215SB224X. NO REASONABLE OFFER REFUSED.

NEW GENUINE MACK INJECTORS WITH FOLLOWING PART NUMBERS. NO REASONABLE OFFER REFUSED.

QUANTITY: PARTS NUMBER: APPLICATION:

1 736GB254P3X ETX673D, ETY673E, E6-250

3 736GB251X END673E ROBERT BOSCH PUMP

ENDT673C ROBERT BOSCH PUMP

ENDT675 ROBERT BOSCH PUMP

ET673 ROBERT BOSCH PUMP

1 736GB337P6X E6-270 4V ROBERT BOSCH PUMP

1 736GB333P9X EM6-237 ROBERT BOSCH PUMP

5 736GB341X E7-250,275,300,350,E7-400

3 736GB321X ENDT-676 ROBERT BOSCH PUMP

TRXL107A DENOTES AIR SHIFT ILO OF 2ND SHIFTER