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View Full Version : Crown Wheel and Pinion ratio.


NovaBen
01-01-06, 04:28 PM
Just a quick one guys, can anyone tell me what ratio the standard CWP is in an F13 gearbox please?!

Cheers

Ben 8)
Dan
01-01-06, 05:30 PM
f13cr from a gte = 3.74
f13cr from an sri = 3.94
f13wr from other = 3.94
mowgli
01-01-06, 06:46 PM
if you are looking for low diffs, try & find 1200 mk1 astra estates they had ridiculously low ones I think I have an old Haynes for one. I'll hunt it out.
Stuart
01-01-06, 08:51 PM
some early 1.3"sr"'s had the 4.18..

i believe some oddball corsa had the 4.29 (the one i have)

the haynes manual give a clue but isnt the best for these things, you actually have to go out and look at the boxes to be sure...
See my FD guide in the tech guides but for a bit more info
Ben
01-01-06, 10:50 PM
i believe some oddball corsa had the 4.29 (the one i have)

Yeah i have one of these from a corsa sat on my bench.
Snowface
02-01-06, 10:53 AM
but the early 1.3 sr's were an F10 not F13.

My F13 from a GTE is an F13WR 3.74.

Pot luck a lot of the time but most are CR 3.74 i believe.
Stuart
02-01-06, 11:18 AM
the F10 and F13's are the "same" clusters (in 5spd format).... so the FD origin dosent matter....
NovaBen
02-01-06, 01:35 PM
Thanks for the replies there guys, i'm bidding on a 3.94 CWP on eBay at the moment but its not any different to what i've got in there now! Oh well. Its only on ?1 at the moment!!

I'm probably looking for around about 4.64 if anyone knows of any going cheapish?!!

Thanks again

Ben 8)
Will
02-01-06, 01:59 PM
AFAIK Jim runs a 4.53 ..... not sure what box this came from, might be worth asking him.... :wink:
Stuart
02-01-06, 02:11 PM
the "max" std one is 4.53... anything more and your going to need to get one made specially...

I paid ?40 for my 4.29... the 4.53 is worth a "mint" since its rare as fook
Snowface
06-01-06, 12:28 PM
think 4.53 are found in a certain model of mk2 Astra.