hey guys i was just wondering how much would it cost to replacement a gearbox for a 91' N/A 300Zx
Mine is starting to get messed up
really rough shifting and its getting old
i coudlnt find any threads about it
im just looking for an estimated price soo i know what im looking at
my first Z soo yeah trying to fix up all the stuff
any help is appreciated thanks

 

it really depends on how lucky you get on finding a decent used one. i've had an opportunity to pick a decent one up for $100 because the guy that had it didn't know what it was worth. also if you are doing your own work. but as a guess i'd say you'll be looking at about $1000. but do try just changing your gear oil to some good stuff first. it may have just gotten low on oil, and you might be able to get some more time out of it by topping it off.

 

Expect around $750.

And change the fluid to Redline MT-90 or MTL... that might help.

 

theres also the cool 50/50 mix of redline and BG synchroshift that is supposed to do wonders

 

wow thats a big number
any estimate on a the cost for a new gearbox, just the part
and an estimated on the labor would be good too, gotta figure out what to do about its $1000 is a big *** number ahaha
well i guess i can try out changing the fluids first to see what it does
soo redline huh
is that coolant or motor oil ?

 

soo its gear oil right
where do i add that into
im not that familiar with all the stuff yet
but trying to learn how to do some stuff on my own
save some money for other junk ahah
yeah that everyone for all the help soo far

 

If you've got the tranny out, I'd recommend a new clutch, pressure plate, pilot bearing, slave if it's inside the tranny. Basically anything that might cause you to have to remove it again anytime soon, unless the clutch and such is new.

 

yeah the clutch and stuff are rather new
soo im trying to try out the gear oil stuff first
im not quite sure how to change it tho for a 300Zx
any advice

 

drain it then fill it? theres a plug for both... pretty easy! drain is on the side its at the level i believe that once all the fluid you need is in it will start to leak out and teh drain is on the bottom. have fun finding a way to actually transfer the fluid from the bottle its in into the tranny though thats always a fun project

 

there's a thread about it. what you will need is 3 bottles. cut the top off of the little squirt nozzle, and stick a rubber hose on it. any generic automotive hose that will stretch and bend without kinking will do. then hold the bottle as high as you can and squeeze it with a clamp if you have to to get it all in. then just keep topping off the one bottle to have enough to squeeze. it's a pain. you may need 4 bottles. i can't remember.

 

where are these plugs and like where do i add the gear oil into
sorry if im asking too much
soo far i got all the stuff i need
the 4 bottles of redline gear oil and the hose
needa know the location of the stuff soo i can get started as soon as possible
thanks a lot ppl
saving me a bunch of trouble

 

The plugs are on the transmission... you'll need a 1/2" breaker bar to get them (they're square socked-ended plugs). One is on the driver's side (fill plug) the other is on the very bottom. Fill it until fluid drips out of the fill plug (as Eric said).

And no offense, but if you had just gotten under the car and looked for yourself, it would've been so obvious that you wouldn't have needed to ask. You could also searched.

 

oO okay thanks
just wanted to see wassup before i started to to do anything to the car first thanks for all the help ppl

 

btw, my plugs were super f-ing tight and i needed to get the car jacked up enough that i could get a pipe on my breaker bar. then you need someone pushing in on the end in the plug so that it doesn't come out and ruin your plug

 

$1000 is a fairly normal number for z32 repairs. not a car for folks on a tight budget.

 

yeah seriously. you really need to know that a Z32 has been very well maintained if you are going to buy it without a lot of time and money for repairs. i got F-ed. i spent $4000 on the car, then $5000 on the engine withing 2 months of having it