R33 Gtst Gearbox Issues

[gach2]

Posting this on behalf of a mate

his r33 has the following problems

when its cold its hard to get the car in 2nd gear (once warmed up no problems) - been told gearbox oil change should fix this

also 3rd sometimes crunches

and 3rd and 4th gear can be rattly unless you are holding on the gear knob

was told by a mechanic that the synchros are worn on 3rd and 4th

but said he doesnt do gearbox fixing

would it be a big job to replace both synchros

and also was told if he used redline shock proof gearbox oil this may temporarily solve the issue

would this be true?

guess it wouldnt be much of a loss as the gearbox seems to need an oil change (though ive this oil is pricey)

thanks

[GTSBoy]

Needs a rebuild. Probably needs all the synchros done, and may even need work on selector forks.

[gach2]

thought so

but would redline shockproof oil do a temp fix as he cant afford rebuild right now

[GTSBoy]

Shockproof might help, but only bandaid style help. The symptoms sound fairly severe, so shockproof might only cost him $$ with no return. Each way bet really.

[KiwiRS4T]

Shockproof is not very good for your box but if you must, use the lightweight version. It will not improve cold action. Better to use Redline MT 90

http://www.redlineoil.com/product.aspx?pid=46&pcid=7

[34GeeTeeTee]

Shockproof might help, but only bandaid style help. The symptoms sound fairly severe, so shockproof might only cost him $$ with no return. Each way bet really.

Spend the money on the box and not a band aid solution, I have similar issues and the oil didn't help at all...