Fighting bro 4.0 gearbox for SLR CQB

General
#1

Hi anyone used a complete fighting bro 4.0 gearbox? Any opinion of performance/ quality? It’s for a SLR CQB. Cheers

#2

The split one yeah? Ive got one in a TTM receiver. I like being able to take out 2 pins and i can see inside the gearbox.

Ive had to replace the shitty clear blue cylinder head and nozzle . Apart from that pretty weak shim job on mine. And bearings not bushes. I swear they didnt push the bearing in all the way when shimming. Added nearly another 1mm of play.

PXL_20201217_110836643
PXL_20201217_1108366433840×2160 2.36 MB
PXL_20201217_110818517
PXL_20201217_1108185172160×3840 2.31 MB

Have no idea how well they go into slr tho sorry.

1 Like
#3

Ok thanks for feedback, what cylinder head and nozzle did you use for a replacement? What motor you running? Cheers.

#4

I got a generic alloy ldt head and nozzle from GBMaster here in Perth for only $12.

I just got a cheapy chi hai motor but seems to be doing ok so far

Screenshot_20210116-085520
Screenshot_20210116-0855201080×2160 222 KB
Screenshot_20210116-085501
Screenshot_20210116-0855011080×2160 294 KB

#5

Also I think the gearbox comes 1.2mm ,155mm long spring

#6

Thanks much appreciated, I thought there would be possibly more people using this gearbox? Cheers

1 Like
#7

I got it after seeing a guy who only uses these in his builds and liked the easy teardown so gave it a shot. Bit tricky at first but the split goes back together really nicely.

I forgot to put the back pin in with the top of receiver off but with complete gearbox. Without the pin the top of the box flew across the room haha.