They were non-adjustable after that date. Adjustable castings came with pushrod guide plates, sled fulcrums and stamped steel 1.73 to 1 rocker arms. Adjustable valve trains used non-shouldered rocker studs. Non adjustable valve trains used positive stop shouldered studs with 3/8 fine pitch threads on top. Brakes, Steering, Suspension, Tires, & Wheels - Early vs Late 1999 front brakes - Anybody know what the difference is in the early vs late 1999 front brakes? I have a 99 F-250 manufactured in 1/99. I went to Napa to get new front rotors and got the early 99 rotors and while working on the drivers side it interfered. 1999 - 2016 Super Duty - 6.8L V10 Gas Mileage Report - Bought my truck in January, been putting all the gas receipts in the center console, just got around to typing them all in and figuring a gas mileage. Lie-o-Meter routinely says 10.5. I also didn't write down the mileage on all the receipts, so these are 7 and 3. The RPM calculator says with 4.11's/33 inch tire/.69 6th gear should have me at 75mph revving 2175rpm's. Currently in a strong headwind or the previously mentioned overpass it will kick down into 5th which is way too often Fantastic build Jetfixer! Restomod is the way to go for sure. Ford Truck Enthusiasts Forums Misc. Brakes, Steering, Suspension, Tires, & Wheels Cooper Discoverer vs Bridgestone Dueler? Notices Check out the Ford-Trucks Tire/Rim Calculator Brakes, Steering, Suspension, Tires, & Wheels Jeeeeez just saw the date. Love my 270HR Comp. Makes 500 ft lbs. with stock D2 heads and a 4.125 stroke and bore. 9 1/2 to one pistons. Hauls *** with 3.50s and 33s. Forscan Spreadsheet for 2020-22 trucks: 2020-22 Forscan Spreadsheet Link *MODERATOR'S NOTE:* AS OF DECEMBER 2019, *OWNERS OF 2020-22 MODEL YEAR SUPER DUTY VEHICLES BEGAN REPORTING SIGNIFICANT DIFFERENCES IN FORSCAN BEHAVIOR AND/OR PARAMETERS WHEN COMPARED TO 2017-2019*. *IF YOU HAVE A 2020-22 MODEL YEAR SUPER DUTY, IT IS STRONGLY SUGGESTED THAT YOU USE THE INFORMATION IN OF THIS THREAD. IF YOU. Offroad & 4x4 - Anyone know their center of gravity? - This summer i am going to three link my truck, front and back. I am still tweeky with my angles and leigths. The only thing that i am not quite sure on is the center of gravity of my truck. I dont have scales so i cant measure my fore-aft location (front to back). According to my local dealer the 21E14 ONLY applies if you had the 20E07 done BEFORE 7/3 this year. Since I was after that date I should be good to go. 🤷‍♂️ I just learned of that cut off date the other day. Mine would be do for the 21E14 since they did 20E07 back in April. I still haven't received any notice, by mail, fordpass or. I am an avid ford fan but this 4.0 sohc is a just junk. As far as the vast majority thinking this is a good engine, you need to buy a new calculator if that is the percentage you come up with. If you read the posts you will find the oil problem and cassette problem the most talked about item by people who own them.