Removing Rb20 Gearbox & Need New Bearings

[The Dan]

Part number should be 32136-U0100 but I would remove the seal and have it matched up to be sure.

[45ULT]

u'll probably find that its not the input shaft bearing but actually the counter-shaft centre bearing. did u get bits of bearing race stuck to your drain plug?? been through this 3 times now with 3 different boxes. got it down to 45min changing the box lol. ended up getting heavy duty bearings from CBC bearings. let me know if u want someone to replace the bearings for u i can get it done pretty cheap with the heavy duty bearings.

[45ULT]

there's the problem bearing, the cage falls apart. u can the see the missing part circled in red

[CEF11E]

I also have an RB20det box that is on its way out. I bought it in so called "excellent condition" I got shafted! as soon as it went in i could tell it was not right.

It makes a clutter type noise in 1st 2nd and sometimes 3rd epically changing down gears under compression braking. I have rung a few places and got really vague quotes for "about 1200 mate..."

I would like to get it rebuilt but what sort of price is reasonable? and exactly what gets replaced?

Cheers

[The Dan]

$1200 is a reasonable price for an un-inspected box.

They will generally replace all the bearings. Some workshops won't do all of them...just the ones that are worn.

They will replace any other parts which may be worn. For any of your regular gearbox shops they will charge you around $1200 for a basic rebuild which will cover you for labour, bearings and most of the time one or two synchro rings and that's about it. Any more damage inside and the bill goes up most often.

I do the RB25 and RB26 boxes starting from $800 for bearings, seals and labour to strip/reassemble. This doesn't include any synchros or gears. I generally stay away from rebuilding RB20 boxes as they are much weaker than their counterparts. I recommend the cryo treatment if you want to stay with the 20 box as it will increase it's strength by around 2-3 times.

[Bl4cK32]

3lit3 - would u happen to know what the (aftermarket) part numbers are for bearings for a rb25 box? I want to slap a set of bearings in mine, and was wondering cost of bearings from cbc or the like...

[CEF11E]

$1200 is a reasonable price for an un-inspected box.

They will generally replace all the bearings. Some workshops won't do all of them...just the ones that are worn.

They will replace any other parts which may be worn. For any of your regular gearbox shops they will charge you around $1200 for a basic rebuild which will cover you for labour, bearings and most of the time one or two synchro rings and that's about it. Any more damage inside and the bill goes up most often.

I do the RB25 and RB26 boxes starting from $800 for bearings, seals and labour to strip/reassemble. This doesn't include any synchros or gears. I generally stay away from rebuilding RB20 boxes as they are much weaker than their counterparts. I recommend the cryo treatment if you want to stay with the 20 box as it will increase it's strength by around 2-3 times.

Thanks for the reply, that was exactly what I needed to know Cheers!

[STATUS]

3lit3 - would u happen to know what the (aftermarket) part numbers are for bearings for a rb25 box? I want to slap a set of bearings in mine, and was wondering cost of bearings from cbc or the like...

i used to work in a nissan dealership and we used to just take the bearings down to CBC and they match em up on the spot.

ps we never charged for genuine parts, so it wasnt monkey business.