reisama

iTrader: (1)

HI guys, i was not able to find an answer to this question so am now asking for you expert help.

I have an 1983 gsl, it has an lsd.
I JUST bought an 84 gs to replace it, drum breaks, so no lsd, correct me if i'm wrong.

My plan for the next month is to try and fix the engine on the 84, if not will be doing a swap using the 83 as parts.

My question to you experts is, can i swap the lsd from 83 into 84, or because of the diffirenet half axle size, that is no longer possable?

thanks.

82transam

iTrader: (18)

I'm a little confused why you would want to get rid of the GSL housing with its disc brakes, but you are correct, the 83's Diff will not work in the 84 housing (or visa versa) because of the different axle sizes.

reisama

iTrader: (1)

Ok thanks, was just making sure.

to answer you question, when i bought my gsl the rear end was damaged, the watts link was breaking off the housing, and it broke on me causing me to crash and damage one of the half axels, I used a half axel from an early year model with drum breaks, and had to modify the housing as the only half axel i was able to find had a wrong size bearing on it, and would not fit. also the portion of the housing to whitch attaches the calliper was cracked, i was able to wield it but had to use a 1mm spacer between the axel and the break disk to insure there was no rubbing. it's a long story and at the time i was doing this didn't have the tools i have now, so the job was not perfectly done.

It's not a big issue and the car drives fine, but if possable i would not want to use it on the 84, since the 84 is in a mutch better condition.

Slammed_GSL

iTrader: (14)

The 84' drum axle housing (4 bolt for all GS) is different from a 84' disk brake axle housing (3 bolt for all GSL, GSL-SE).
The bolt pattern mentioned is the brake mounting point on the outer edge of the axle housings.
The only option is to swap the entire rearend assembly(S2 small axle or S3 large axle) to the 84' or find a GSL-SE (large axle) rearend for a replacement.
Bottom line, the 84' Drum axle housing cannot be transformed into a Disk brake axle. You could put a 84-85' (large axle) LSD into the Drum axle housing but wouldnt be worth the effort in my opinion. Disk brake rearend is where you want to be.
Don't forget the e-brake cable assembly will also need to be swapped as well.

reisama

iTrader: (1)

i have nothing against drum breaks, on a light car like the fb they should be more then enouph for street use. I'm more interested in the ls, then the actual disk breaks.

Anywyas thanks for the answer ^^

Slammed_GSL

iTrader: (14)

You might also want to verfiy if the Drum axles are the same length as the GSL (LSD) axles, GSL-SE axles have a different offset from GSL, keep that in mind.
Other than that there is nothing stopping you from putting a LSD in a drum rearend
Take pics if you do this swap.

82transam

iTrader: (18)

The only axles that are different in length are the GSL-SE axles to accomodate the SE wheels offset.

reisama

iTrader: (1)

Sorry, but now i'm confused.

are the axels in 84 gs the same size as the axels in an 83 gsl?

also can some clearify what the exact differance between the axels? if it length or width of the axel? any one have pictures.

If it's just length then i should have no problem using the 83 gsl diff, as long as the axels are the same diameter that is.

thanks

82transam

iTrader: (18)

I was mostly speaking to slammed GSL since he mentioned axle length. As long as you are not working with a GSL-SE rear end (which you aren't) the axles will all be the same length.
Its the diameter that is different in your case, the 83 axles are smaller around than the 84, everything else is the same.
Sorry to confuse you.

reisama

iTrader: (1)

thanks again 82transam.

That answers all of my questions ^^