Dineau

Looking at the Shaftmasters website there's only 50$ difference between the 3.5" and the 4" inch model. Any downside of going with the 3.5" ?

I saw that there was issue with lowered V8 cars and 4.0" but what about sixers?

Thanks,

2005Redfire6

Why don't you call them?

JimC

I have the 4" driveshaft on my car and the rear is lowered a little over an inch (front is stock height). I haven't had any issues with my Shaftmasters at all. Great product, best price you will find, and great customer service.

Call them and discuss your options with them.

tx_zstang

Have the shaftmasters 4", for 4 years now, with no issues. I'm lowered about 1" and have no clearance issues. As long as you dont lower too much, the 4" will be fine. If in doubt, go for the 3.5.

You can't go wrong.

Dineau

My question was more to find out if there was some downside to a 3.5 for example more prone to vibration, more noise, etc..

Thanks,

conejo172

This is a good topic! I would like to get an aluminum DS after I switch over to the 8.8 with 3.73's I have heard good things abou this mod but have yet to do any research

JimC

I haven't heard any complaints about the 3.5" shaft from the guys I know who have one.

The difference in the feel of the car once you put the new shaft on is something you have to experience. When I put mine on the car felt "lighter" is the only way I can describe it, and it accelerated so much quicker that I was at 85mph before I realized it.

rls82959

Been on the fence for a while.
Just pulled the trigger on the 4" Shaftmasters.
This is my final mod.

tigercrazy718

thats what they all say lol

conejo172

Too bad cause it doesn't look like you have done much at all