bungy74

Hey everyone. I have a 1992 Z28 and a 2000 Z28. I plan to do the ls1 swap into my 1992. My 2000 is an automatic car and so is my 1992, but i want to go with a six speed manual. Can anyone tell me the difference between a 93-97 6spd and a 98-02 6 spd. Can i use an earlier trans ? I see that hawks offers the 93-97 style, but i do not see them offer the ls1 style. Any info is greatly appreciated and thanks in advance.

Lonnie P

The LT1 trans will need a bell housing, slave cylinder & input shaft swap to fit the LS1. Ratios are the same.

Z28ricer

iTrader: (2)

As well as the front plate to the case.

The T56 also got a gear upgrade on one of the forward gears somewhere during the 98-02 years, I *think* it was 99.

bungy74

so it seems like a better idea to try and find one from an ls1 camaro , would you agree ?

Lonnie P

yes, I forgot to mention the front plate...

Just buy an LS1 trans & be done with it.

I had a LT1 trans & still bought an LS1 trans for my swap.

Z28ricer

iTrader: (2)

Yeah, unless you've got the LT1 box sitting around and can write it off as free, or find someone that will swap you the LS1 stuff because they have an LS box going behind a gen1, its usually best to just search out an LS1 box.

Also keep in mind 04-06 GTO isnt hard to use, as well as the SSR boxes which is about the strongest offered.

bungy74

thanks for your replies guys, i really appreciate it. Also, does anyone know where i can purchase a ls1 style t56 and needed parts ?

DIGGLER

iTrader: (1)

the 93's had different ratios. one had a 3.36 1st gear and the other one had nearly identical gear ratios to a c5 z06.

pearl_iroc

I found mine on ls1tech.com, search the classifieds there is always one or kicking around

88FormulaKiller

iTrader: (8)

The MN12 isnt hard to use but keep in mind, 1) they are alot more expensive, 2) they use a mini type mitsubishi starter if you choose to use the GTO bell which ive seen some people have a hard time finding decent priced replacement starters 3) Depending on the vendor, getting/finding the offset block to use in a third gen can be a chore at times (out of stock at time of my purchase from several vendors).

Z28ricer

iTrader: (2)

They are a little more expensive, typically, and for the mileage, the double/triple synchros, those two alone are usually worth more than the difference in price.

2. I havent seen any problems getting them, I paid $40 or $60 when I bought mine locally at a salvage yard, I just searched for confirmation and found a half dozen in FL alone, all under $100

3. I guess if you did have an issue getting the shifter block thats believable, but usually thats a common in stock item.

88FormulaKiller

iTrader: (8)

They are ALOT more expensive, we typically sell T56's from F bodys with low mileage for 1200-1500, the MN12 goes for over $2000, mind you they come with warranties, but then again, whos gonna sell you a used tranny on CL or a forum with a warranty?

Z28ricer

iTrader: (2)

You may want to rape people and overcharge for them pricing them at over $2000, but normal actual selling price for places that arent trying to take advantage of people are typically $1500-1800 for a GTO box.

A NEW tremec magnum is $2895, sorry if you tried to tell me to hand you $2000 for a 40,000+ mile transmission, well you wouldnt like what i'd tell you and a new magnum would be on its way to me.

pearl_iroc

I got my MN12 T56 with ls1 bell housing for 1400, had 60k on it. They can be had for decent prices, just gotta look around.

DIGGLER

iTrader: (1)

i have a couple of t56's with issues.... like popping out of 3rd or whatever. anybody interested in one? out of '94-97 LT1 fbodies.

bungy74

thanks all, i found an ls1 6 speed.

bungy74

now i need to make up my mind on clutch and hydraulics

88FormulaKiller

iTrader: (8)

i dont price these so its not my doing. When it came to put in a 6 speed in my 91, i couldnt find a low mile tranny around here for the life of me... $2000 for a tranny with a warranty with 27K miles on it from a car i could get in and see and judge how it was treated was a selling point to me.

Z28ricer

iTrader: (2)

What you paid for yours doesnt equate to the normal going price for them, I can find several right now from salvage yards just the same in the 1500-1800 range, you posted that they arent similar in price to the F body transmissions, and though you overpaid for yours, for the most part they are usually close enough in price that the benefits inside them is well worth the difference.

88FormulaKiller

iTrader: (8)

what site would that be? carparts showing 3 with 60K miles to 90K miles from $1675 to $1860... and dont forget the $300 core charge = $2000 or more, and we're so bad about price??? I see a $500 core charge on that $1900 tranny one there and its not ours....


Im all about this price conflict cuz i need one for my 1st gen swap right now and have been shopping around.

Z28ricer

iTrader: (2)

3 of them you found do not list a core, plenty of the places arent out to rip people off as i've already said, chances are they arent going to require one on the boxes that are listed for 1675, 1675, and 1860. One that listed with $250 for the core is still $1500+ that, and again still under the $1800 that i've said they can be had for reasonably.

Again if you are looking at places wanting to charge you $2000+ for a thoroughly used transmission, that they got out of a $3400 car, and dont have enough sense to buy the brand new, upgraded, stronger version of it for $2895, I cant help you any more than that.

88FormulaKiller

iTrader: (8)

the three listed... for those prices above... are from LKQ, where i work, the core is $450. $1800 - $2000 is pretty much the ballpark. Thoroughly used? i bought my last one with under 60K from a well cared for car... shifted Mint, Zero issues. and these have warranties. My point is in a retail world, this particular used tranny is more expensive, and if there isnt a core charge on it from the yard your buying, it either has a crap warranty or none at all. And one Last last point i wanted to make, different areas of the country have an abundance of parts readily available, here in new england, these gto trannys are hard to find... so theres another variable.

Flip 2

iTrader: (1)

LS6 clutch is popular.
I don't have a big cam so I went with a SPEC stage 1 clutch, and liked it a lot.... However, it did not play well with my RAM hydraulics, so I took it out and put in a RAM HDX. It works with the RAM throw out bearing, but I do not like the feel nearly as much. When the time comes, I will probably replace with a LS6 clutch.
SPEC clutch will work with stock throw out bearing.

PS $100 for my slightly used clutch, if you want to go in that direction.

Jupiter

iTrader: (1)

So clutch and flywheel setup is different between ls and lt1 t56's. My pre 86 car has a 2 piece rms sbc with a factory borg warner t10. I have already done a Ram hydraulic clutch conversion 'works GREAT' and am now curious which tranny is easiest for me to swap to. Can someone tell me if my existing flywheel will work with a ls1 t56? I know it won't work with the lt1 t56. I have read somewhere that i could use my existing clutch, flywheel and, bell housing with an adapter plate and a ls1 t56. Can someone tell me if this will work or do i need to get a differant clutch and flywheel?

513camarors91

iTrader: (1)

i have a mn12 and love it...but i also got it with my engine i bought out of a 04 gto...now the hard part is trying to find out what gears to run with it... 373 or 410 right now i can break the tires loose with the stock 308 gear.