hey guys i recently purchased a moser 3.73 ring and pinion set and also found an aluminum driveshaft from a 2002 Z28. Im probably going to end up spending around $250 to get the driveshaft, is it worth the cash? what is the approximate weight difference? will it compliment the gear enough to spend $250 on?

my other options besides the aluminum driveshaft would be a pcmforless tune or possibly having my intake manifold ported and polished. thanks guys

 

For an extra $50 you can get a Lingenfelter aluminum driveshaft. I assume its better than GM but I can't say for sure. But I can definitely feel the difference, more than I expected to. But be warned that there may be clearance problems if you have a catback. Mine comes within 3/8 inch or so of my exhaust.

 

FWIW, $250 is more than you can get them BRAND NEW, SHIPPED from Jason Cromer...

 

The major reason to upgrade your DS is because the stock steel one vibrates at higher speeds, this is a balancing problem and does not effect all fbodies with the steel shafts but certainly enough.

Going to a higher gear mans you will be likely turning more RPM's and the vibration problem may become noticable - or not.

a DS swap is pretty simple - and they can be picked up for $250 at most(all) times.

So unless you just looking to spend more $$ (I know that feeling) it may be best to see if the steel on becomes a problem and then swap at a later date.

The difference in weight will not have a large impact.

BTW - I went to a 3.5 LPE one but only cause I got it for a good price off a member - it is a very tight fit!

 

So what year is your car? If 97, the DS problem is supposedly corrected. I believe that a steel DS is stronger than an Aluminum DS and makes up for the difference in weight.

So if you have a 97 and you haven;t experienced any vibes, I'd sugges spending you money on PCMFORLESS, you're going to need programing for your gears anyway to calibrate your speedo (and if you have an A-4,adjust your shift points. Might as well get a 160 Stat too and have your fans programmed accordingly. JMHO