difference between G50 box and G50-50

[tuxman]

deos anyone know if a G50-50 box will fit the same as my G50 std box and are the gear ratios different ?i have been told they are the same outside but have longer ratios to suit turbo engine

[builder]

tuxman said:

deos anyone know if a G50-50 box will fit the same as my G50 std box and are the gear ratios different ?i have been told they are the same outside but have longer ratios to suit turbo engine

Simon, here are some T/A links from my bookmarks:

www.pistonheads.com/gassing/topic.asp?p=1&f=20&t=67503&h=0

www.2gmotorsports.com/trans_gears.PDF

www.porscheclubgb.com/uploads/registers/53/Handbook.pdf

www.adequatespeed.freeserve.co.uk/gearbox.html

http://jason.kitcarmagazine.com/Current_Progress/Engine/LS1-Transmission_Renegade.asp

http://jason.kitcarmagazine.com/Current_Progress/Engine/LS1-Transmission.asp

www.en.getrag.de/180/180

www.instant-g.com/

http://members.rennlist.com/david_t/gears.htm

www.phii.net/

www.quaifeamerica.com/

www.rennsportsystems.com/2d.html

www.rennsportsystems.com/1-d.html

www.ultima-gtr.info/utips.htm#Transmission

www.geocities.com/z_design_studio/transmission_993_bit.html

www.roadsters.com/trans/#ta

[ultiman]

tuxman said:

deos anyone know if a G50-50 box will fit the same as my G50 std box and are the gear ratios different ?i have been told they are the same outside but have longer ratios to suit turbo engine

I think "yes" is the short answer. I use the G50-50 for the longer gearing which gives slightly more relaxed (if that is the word) cruising. It also has the advantage of the limited slip diff which is noticable in the wet if your enthusiasm overtakes you. (ie. It prevents the back of the car doing the same).
Nick

[mkoch1]

This may help. I re-geared my 50/50 to match the corvette since I am running an ls1.

Stock g50/50 or 50/52
ring 3.4444 1st 3.154, 2nd 1.789, 3rd 1.269, 4th .967, 5th .756

stock corvette gearing
ring 3.42 1st 2.66, 2nd 1.78, 3rd 1.30, 4th 1.00, 5th .74 6th .50

My g50/50
ring 3.4444 1st 2.6154, 2nd 1.789, 3rd 1.269, 4th .967, 5th .756

mark

[tuxman]

thnks Mark having problem identifying my box no stamped on bottom is 01249 nobody seem,s to know what it is

[davefiddes]

Looks like the numbers you have are the serial number. Can you make out what is on the other side of the centre line of the box? These should start G50.

[tuxman]

hi dave can,t find any number,s starting with a G50 only number,s on box are 950.301.102 and then 3Rin a circle help

[steve_D]

It sounds like those are 'cast in' type numbers.

You are looking for a stamped number. It goes across the box with the G5052 on the face of a lug with the rest of the number 2 12345 on a lug with a slightly lower surface.
This is just after the diff as the box starts to taper away to the shift link and will be directly on the top or bottom of the box depending which way up you have the box.

Steve

[davefiddes]

Right next to the old drain plug/new fill plug.

[builder]

Should look something like this?




>> Edited by builder on Wednesday 20th October 02:21

[tuxman]

thanks for the help guys , left hand flat plat has been ground away so cannot see any g50 number !!!!!will have a chat with factory to see if they can help