Huggerorange73

iTrader: (5)

This is one of those times I wish I had the wiring diagrams handy...since I don't I'm guessing someone here will have the answer.

I'm swapping my LS1 tails/harness for a LT1 set up including the harness.

Everything is plugged in...everything works cept I don't have any brake lights.

I'm guessing either something needs to be added/spliced to the LT1 harness?

Thanks in advance!

airfix

iTrader: (30)

I forget exactly what you need to do, I traded my lt1 tail lights and harness for ls1 tail lights and harness to a member on here. He knows exactly what to do his name is
"LS1DER" Hes a super nice guy and Im sure if you pm him he will help you out, and tell you exactly what to do to make it all work.

Ryan

vatechguy3

iTrader: (4)

when you find out, be sure to post. got the lt1 tails in the shop now and need to know what i need to buy harness wise to comeplete the swap.

thanks
tony

barnat

iTrader: (59)

Why did you go threw all that?Just open up the bulb sockets a tad where they need it with a rotor bit and a dremel .Takes like 10 minutes for both sides .That way if you ever decide to go back ,,,,you just swith out the tail light housings

vatechguy3

iTrader: (4)

what exactly do you mean?
what is different between the lt1 and ls1 harnesses?

thanks
tony

SparkyJJO

iTrader: (11)

LT1 harness uses the whole tail light as running light and the brake/turn signals. LS1 (actually 97-up) has just the outer part running lights and brakes, inner part turn signals (because of the amber instead of all red on pre-97 cars).

You can put pre-97 tails on a 97-up car, just trim the holes to let the sockets fit. Then you can add the wire to the inner socket for the running light. But the turn signal will still be inner part only, and brake outer part only.

vatechguy3

iTrader: (4)

how much trouble is it to swap harnesses?

tony

Huggerorange73

iTrader: (5)

Okay,

I've got all the wiring diagrams in hand...I'm off the next two days. I'll have this ironed out quickly, and will post the answer here.

As far as why I went through what I did...I didn't want to molest any of the tailight housings to retro fit anything.

It was a pretty simple job to swap out the harness, so I took that route..

vatechguy3

iTrader: (4)

sounds good, huggar.

look forward to the update.

thanks
tony

Huggerorange73

iTrader: (5)

Okay,

After alot of research and thinking things through...he's the skinny.

The LT1 harness does not have the baby blue wire for the brake lights. The brake light signal is pushed through the turn signal switch on the LT1 car. It would take alot of work rewiring the harness to make it fly, so I scrapped the idea. FYI, I would recommend you do not purchase the harness for the swap as it not needed.

So what I did was pretty much what everyone else has done...notched out the large hole for the 2 tail/turn bulb sockets on each LT1 tailight. ( The backup and marker light sockets fit perfect as is )

In order to get the entire tailight to light, I simply purchased 2 additional sockets from the parts store, gutted it for the weather pack connectors I needed, pulled the plug from the center of the LS1 harness and slid in the new wire.

Soldered and heatshrinked everything up....now it's all good!

Dark SS

iTrader: (6)

Why not just dremel the LT1 tail lights and have a red turn signal instead of amber? I did this on our 99 and it is a unique look.

Huggerorange73

iTrader: (5)

Dark, you have any pics of your old set up by chance?

Love the avatar by the way!!

GO WHITE SOX!

vatechguy3

iTrader: (4)

can you give a little more decription on what/how you did this?

thanks
tony

2manytoyz

iTrader: (9)

I wanna know why every pre 97 taillight has a dimple where the light goes?Like the wattage is too high on the bulb and it melted,anyone wanna add to this?