It is easy to ignore that slight vibration. You must first locate a machined surface on the transmission and differential. Chrome molly tube is an alloy tube and also made with a very heavy wall thickness. Specifically we are focusing on drive shaft angle on lifted trucks and Jeeps. I had to have the rear drive shaft lengthened. If you understand and apply the concepts that I've attempted to convey here and do your homework. Any recommendations?
Location: Central Vermont. Many people mistakenly believe that a double cardan or C. type drive shaft will allow for greater operating angles than a conventional two joint or single cardan drive shaft. It has been a few months but i finally got things almost back together. In summary, for a custom application, you need to know the answers the questions of Angles, Torque, Length, R. M., Life expectancy and how smooth you expect your ride to be while traveling down the highway. The lift kit manufacturer may tell you one thing and the local drive line shop or mechanic will tell you another. Although your chances for success are greater if you do your homework and design around established principles.
I have spoken with Kert and we both think 14* pinion angle is high. Some of the time things that in theory should work, do not, and other times people seem to be happy with a drive-line that by all standards should cause a horrible vibration or short life. From what I understand) Rear spring lengths are the same, 52", difference being the location of the spring hangers. How about your driving habits? I have a skyjacker 4" on my 72 K5 and the rear driveshaft pinion angle is bothering me. When in doubt or if you are near this upper limit, I recommend that you install a double cardan (C. V. ) type drive shaft. Okay, so now you've done it. Communicate privately with other Tacoma owners from around the world. Because of something known as the critical speed, drive shafts are built on different sized tubes.
Causing what is known as a torsional vibration. Quite often I see joints which fail in one direction only. Insteresting that your having a problem with a 4" lift. With a conventional two joint drive shaft, if your second "U" joint has an equal or intersecting angle, the second "U" joint will be decelerating at the same time and at very near the same rate that the first "U" joint is accelerating, resulting in a smooth power flow through to your pinion.
Rear leaf packs also modified with 1 extra set of add-a-leaf springs. 9 degree - 3 degree(reaction due to torque load) = 3. The real benefit to a C. (double cardan) drive shaft is smoother operation at higher operating angles and longer life. I decided to put the heavy short leaf on the spring pack, which was taken out initially for flexibility, to make the spring the way it was designed. To get full-access, you need to register for a FREE account. Place a spirit level protractor on the driveshaft about halfway between the transmission and the Differential. Welcome to Tacoma World! I was hoping I wouldn't have to worry about vibration issues since I only went with a 4''. If you intend to sell the vehicle after a year or two, or if the vehicle is only used on the weekend, then there is no point spending the extra money on a cv shaft. 18' Siem's car hauler.
I also think they base their recommendations on the math for the largest semi-sized driveline and call it good for every thing else (which it would be). The rear would be 12. However, there was still an unacceptable amount of vibration. Machining the I. of the tube will leave a weak point where thin material meets thick.
How much does your vehicle weigh? Many people call or write telling me about their 600 h. p. engine and to ask me to determine the proper "U" joint or size of driveline for their application. Our example shows: 7 deg. Changing Pinion Angle on a 1960 Corvette. Fitment: Diesel ONLY!
The intuitive way for most people to think of this is the fork angle on a bicycle or motorcycle. A driveline which is too heavy and/or having radius which is too large along with running through a steep angle can accentuate a problem here. The wedge in my axle looks like a 6 degree block. The intent here is to give broad general information, realizing that for the most part we are dealing with highly modified vehicles, requiring other than factory approved solutions. Since the lift was installed, dry spinning horrible bearing noise started when traveling beyond ~50km/hr all the way to max speed, in gear or in neutral, both during coasting, acceleration and deceleration. As the title screen suggests, in many ways it is a better driveshaft video! As with many of our problems in life the solution can usually be found by arming yourself with information. Basically, castor makes your truck return to center after a turn and helps keep it straight going down the road. I would not go over 65mph because of the noise. I rechecked my angles using a real tilt gauge. Torque is what you need to be concerned with.
Twisted tubes are another common problem. I tried pointing the pinion flange at the transfer case with a u-joint at the transfer case. 8-degree bias on the back u-joint. Too many is never enough!
Regards, |Bookmarks|. I have a 4' lift on my spring. 2004 Honda Odyssey (family man! Features: Lift Hight Fit, Easy Installation.