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Old 02-01-2013, 05:40 PM
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Air Randy Air Randy is offline
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If you are going to add a lift, then definitely wait to adjust any drive shafts lengths until after that is done. Just make sure you have the right yokes and flanges available for both DS's. Once the lift is in, the drive shaft place will tell you where to measure from in order for them to make shafts the right length.

How big is your lift? Back when I did a 4" lift on my 40 I had to lengthen the rear shaft. Then I discovered it put so much angle on the pinion I had to rotate the diff up and re-weld the spring pads. That caused a vibration which required adding a CV joint to the top of the driveshaft.
Randy Rosetta KDKWX TLCA #19351 NOW 2015 Rubicon Hard Rock & (2) 1970 Boss 302 Mustang's THEN 69 FJ40 Buggy "Meanie", Mini-truck "Gecko" & 74 FJ40 "Blue Mule"
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Old 02-01-2013, 05:40 PM
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Hulk Hulk is offline
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Southside driveshaft experts:

Bill's Englewood Driveshaft
"You Can't Beat My Shaft!"
3364 1/2 S. Broadway
Englewood, CO 80113
(303) 781-0554
Matt Farr, Centennial, Colorado | Rising Sun Webmaster
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Old 02-01-2013, 11:04 PM
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bigcity25 bigcity25 is offline
Join Date: Nov 2010
Location: Denver
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Only doing a 2.5 mainly to allow for the 33's and replace the old sagging suspension.

At Jeff: we just used the 3 spd ds yoke on the front just to connect the ds temporally. Then I ordered the correct flange from cruiser outfitters and installed it. Now my driveline minus the transfercase is all 4 speed.
Jeff Billingsley
Denver Colo
7/70 Fj40
desmogged 2f, 4 speed
TLCA #21898
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