what rearend is in a 1994 lighting i want to up grade to spool and 355 gear for turbo thanks dave

 

It's a 4.10LS 8.8.

 

Conanski is correct.

Why would you go from 4.10 to 3.55. I would love to have 4.10 gears in my truck. It came with 3.08 man did those suck. I upgraded to 3.55.

 

3.55 gears would be a big downgrade for your truck. I probably would not buy a spool either if you plan on driving the truck on the street. Get a locker, I have been looking at replacing my trac-lok with a a PowerTrax locker from Summit.

 

I wouldn' put a spool in anything you plan to drive.

I don't like lockers unless it is a mud truck or strip only, and even then I don't really like them. I have seen way too many issues with them after they get some use and a few miles on them.

I would get an Auburn limited slip. Its tighter than the Ford traction lock. You can also rebuild your traction lock and add a couple of clutches to the clutch pack. I forgot how many should be added. This will make it tighter. I plan on doing this to mine at some point when the LS is no longer working.

 

TexasGuy001, I'm glad someone backed me up on the spool being a bad idea. I got a friend that put one it a truck he drove on the street and it ruined the truck in my opinion.

You can add one clutch on each side of the clutch packs. This is what I did when I had my whole rearend rebuilt for my truck. The shop that rebuilt it for me was not willing to do this for me, but they gave it back to me without any gear oil in it, and when I got it home I added a clutch on each side of the restacked clutch packs before putting it in the truck. It is definately tighter now, when driving on ice it likes to go sideways even more than before. My truck is a long bed and I will get a chirp out of it every once in a while going around tight corners, this effect will be more pronounced with the Lightning's shorter wheelbase.

 

Yes spools are only for serious racing....You can use then but there not made for the street....I would check out the detriot true trac...There nice & no clutches.... Lew

 

i have a spool in my t-bird and i drive it on the street it's not too bad

 

i was told turbo,s like load not rpm going to run next week will see if it likes the gear. it is a 373 right now

 

When it's on a diesel yes, but on a gas motor all that does is overheat the top of the piston and cause pre ignition.

 

new to turbo thanks for info dave