are there any guys with welded diffs out there on their fc? i have heard all the bad but i have 2, one stock na lsd and one stock open. the lsd is for when the open one breaks or whatever so no worries.

 

A welded diff is not the way to go on a street driven car. Never had one on a FC, but did on a Chevy. As both wheels turn the same speed, corners are fun, and backing when turning is great. A lot of strain on the rear. If you have someone weld it up, be careful of the heat generated as it can change the ring/pinion contact.
Just stick the lsd in there and keep the open in case the lsd goes.

 

A friend of mine has one and he said tires dont last long with just normal street driving.

 

If it's a street car, why the hell would you want to do this??

 

When backing out of Sonic, you can get a lot of attention!

 

yeah having a locked diff is the suck in parking lots and when backing up/turning at the same time.

other than that though, you hardly notice it.

 

You are able to corner alot better with OPEN diff too, welded yo have a chance of screwing up if u ever go having a little fun with friends on the freeway.

 

i know a person who has done this. it seems to work ok but i still dont trust it. just find an lsd.

 

For 99.99% of the time and situations you'll find yourself in a welded diff is WORSE than a real LSD. In most cases an open diff is better too. A welded diff will make it harder to turn, will lead to more understeer and is just generally bad. The only time I'd consider it is for a drag car done on the cheap, one that NEVER sees street use.

For a street car a torsen is usually best (unless you're making lots of torque, they get fragile then), or a clutch type (they wear out reasonably quickly though and aren't linear in their lockup like a torsen is).