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73-87 Chevy _ GMC Trucks => 4 Wheel Drives => Topic started by: Grim 82 on November 04, 2010, 09:20:48 am
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I have an extra leaf spring in the front of my 82, and several extra in the back. If I had to guess, I would say I am getting about 2" or so of lift from it. I noticed that I don't have alot of spline contact area in the front driveshaft, and you can grab it in the middle and move it back and forth quite a bit. I could bring it in and have it made longer, but I happened across this spacer by Superlift for our trucks that would be a cheaper fix. Has anybody used one of these?
http://www.superlift.com/accessories/cv-driveshafts-spacers.asp
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Did you lower the transfercase?
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No. Everything is in stock configuration, except that I swapped in the 700r4, np208, and S-curved crossmember from the 88 suburban, but this driveshaft was the same way before the swap. It just has an extra leaf in each of the front packs, and a few extra in the back. I'm guessing that the little bit of lift from the extra leaf is what is creating the added distance. The only other thing I can think of is that it had a 10 bolt front, and I swapped in a Dana 44. Do those axle housings have a different distance from pinion to driveshaft mounting flange? If that is what is causing it then no worries, because it's soon to have a 10 bolt back in it.
Thanks
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Its not a extra lift but its slop in the splines. new shaft would fix it. the spacer wont help
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What I'm thinking is that since I have a little bit of lift, there is slop in the driveshaft because it's stretched out and there is less contact area for the splines. When the shaft is off and collapsed about 1 1/2" more it's tight. If the spacer makes the shaft not have to stretch so far, it would remove the play in the 2 halves. Does anybody know if the pinion to mounting flange distance is the same between a d44 and a 10-bolt?
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Grim, I have used them on fords, the only thing you have to remember is that is adding the width of the spacer straight back, not helping at all with the angle. So if you are good on angle and only need 1 1/2 " to collapse your driveshaft it will work. I ran it on a ford f150 for years with no problems
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I agree, slop in the shaft shouldn't be there regardless but reverse the spacers on the crossmember so it drops 1"
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Thanks guys. The angle isn't extreme, like I said it's stock with only an extra leaf. Right now the crossmember is up against the frame with the spacers above it. I will drop it down with the spacers first and see how that goes, and then get the spacer if there's still play in the splines.