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Re: Pinion angle
Quote:
Originally Posted by tdangle
So are you guys saying that changing from a TH350 to a longer 7004R trans and having the front section of a 2 piece driveshaft will change the angles to the point that a vibration will occur. I have a C20 totally stock suspension with rear leaf and 4.10 gears. Very noticeable vibration at ~45 to 50 MPH. Both shafts were rebalanced when shortened. Shimming Carrier bearing, 2 and 4 degree axle shims, many hours later and nothing really changes. Is not wheels, tires as these have been changed.
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"NO!" Shortening the front shaft wont change the rear shaft angle. Having the two shafts phased together correctly can affect the balance, or a shop unaware of the phasing procedure for these older trucks may affect the balance. A two piece drive shaft needs to be phased correctly and the carrier bearing installed on the front shaft before balancing...I wonder about alot of these shops and the man doing the balancing, sometimes their age defies experience and knowledge...
__________________
Michael of the clan Hill,
"Two Seventy Two's"
71 1-ton Dually 350 4-Speed
71 C/50 Grain Truck, 350 Split-Axle 4-Speed
02 3/4 ton Express
14 Indian Chief Vintage
1952 Ford 8N, "Only Ford Allowed On The Property" 
"Be American, Buy American" 
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