Shortening a drive shaft
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| − | When building a car from mixed pieces or after doing and engine-trans swap you usually need a new drive shaft. Drive line vendors have info posted on how to measure the length you need. Usually install the trans yoke all the way in then pull it out 1/2 inch then measure between U joints. | + | When building a car from mixed pieces or after doing and engine-trans swap you usually need a new drive shaft. Drive line vendors have info posted on how to measure the length you need. Usually install the trans yoke all the way in then pull it out 1/2 inch then measure between U joints. Anon edit: I did this professionally for a year, the correct amount is 1". Then measure the distance between the joint centers. |
For the The next step I get out the dial calipers , measure the U joints required then head to the parts pile or the the local wrecking yard and start measuring, There are conversion U joints that have opposite sides different sizes, I check out the rack and also don't forget to check out light and medium trucks. I have found 1/2 of a 2 piece truck drive shaft that fit one of my project. If you don't find one to fit then look for a longer one with minimum balance weights. If the factory got it close enough with out weights you will have better luck getting it balanced. | For the The next step I get out the dial calipers , measure the U joints required then head to the parts pile or the the local wrecking yard and start measuring, There are conversion U joints that have opposite sides different sizes, I check out the rack and also don't forget to check out light and medium trucks. I have found 1/2 of a 2 piece truck drive shaft that fit one of my project. If you don't find one to fit then look for a longer one with minimum balance weights. If the factory got it close enough with out weights you will have better luck getting it balanced. | ||
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