CHESTNUTXE 7,299 Posted May 19, 2017 hey i just counted the teeth on what i think is 1st gear its the one right at the end of the picture right side and i got 31 teeth does this mean its the 3,06 first gear single rail ? cause there is no tag on the box ? and i assume the 3.50 1st 6cyl box will have 35 teeth ? Share this post Link to post Share on other sites
CHESTNUTXE 7,299 Posted May 19, 2017 something aint right big gear has 31 teeth and the one it drives is 14 teeth which makes 2.2 ratio ,there must be some sought of different way to calcuate the ratio ? Share this post Link to post Share on other sites
Gaz 1,085 Posted May 20, 2017 Put it in first and turn the input. count the revolutions it takes to turn the the output one turn Share this post Link to post Share on other sites
CHESTNUTXE 7,299 Posted May 21, 2017 yep spot on gaz she is just a 6cyl box with just under 3 1/2 turns in first gear so its a 3.47 or 3.50 1 Gaz reacted to this Share this post Link to post Share on other sites
CHESTNUTXE 7,299 Posted May 28, 2017 im doing the same to all 6 single rails here ,takes no time now to work it out. Share this post Link to post Share on other sites
tpak addict 1,909 Posted July 5, 2017 Would be good to have a list of them all with the 0503-xxx numbers 0503-008Â 1st 2.46 2nd 1.78 3rd 1.27 4th 1.00 0503-009 1st 3.06 2nd 1.84 3rd 1.38 4th 1.00 0503-011 1st 3.27Â 2nd 1.99Â 3rd 1.38 4th 1.00 This is rough guesstimate tho. Â 1 CHESTNUTXE reacted to this Share this post Link to post Share on other sites
CHESTNUTXE 7,299 Posted July 5, 2017 The 009 box seems to be the most popular for mild v8 and worked 6 engines,im getting one rebuilt atm with new bearing kit ,and 4 new syncros ,also fitted new alloy lock down nut,new shifter saddle,shifter ball,cant wait to put it behind the worked crossy,if i dont like it i will try the t5 out of xg with 3.25 first. Share this post Link to post Share on other sites
gerg 10,871 Posted July 5, 2017 I had the 009 behind my 302 and I reckon it was a perfect match for the torque curve. She started making some bearing noises but I suppose 30 years sitting around will do that.The old 015 wide ratio 6-cyl one went in after that and combined with the 3.27 diff, was a step backwards.Any shorter is just wasting rpms going nowhere IMOSent from my CPH1607 using Tapatalk 1 CHESTNUTXE reacted to this Share this post Link to post Share on other sites
CHESTNUTXE 7,299 Posted July 6, 2017 yep i figerd the 009 was the go for the new worked crossy as ford offerd this box in the efi xe 250,and possibly 84-85 xf's,i still have the 008 here which is the 351 box,i sold it to a guy 1 month ago and he paid me and i have never heard from him againi have another 009 box here i have no idea how good it is,but i was gunna keep it as a parts box ,its complete78 da box was a 302c xc box or 250 as the 009 was std fittment behind 4.1 xd and xc,except for 200.c.i. Share this post Link to post Share on other sites
CHESTNUTXE 7,299 Posted July 9, 2017 ironic the guy rang me to pick up the close ratio single rail after thinking he wont get back to me grrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr. 1 Slow250XC reacted to this Share this post Link to post Share on other sites
tpak addict 1,909 Posted July 11, 2017 I figure the 011 box would suit my purpose fine... Short 1st to get the Lane moving with 2.77 rear.... Best of both worlds 1 CHESTNUTXE reacted to this Share this post Link to post Share on other sites
CHESTNUTXE 7,299 Posted July 11, 2017 011 is a cortina box i think with 3.08 first ,that aint short first,you want the 015 or 038 box with 3.47 first. Share this post Link to post Share on other sites
gerg 10,871 Posted July 12, 2017 Be careful about how much torque you put through a wide-ratio box, especially in a heavy car. The higher-capacity boxes always have taller 1st gears due to the lower primary reduction. I would be sus about putting a 6-cyl rail behind a V8 or even a healthy 6, these boxes are really only a medium-duty unit. One look inside them and you'll see how tiny those gears are... just imagine that kind of power going through them. I actually broke 2 teeth off second in a 3.06 box in my 6-cyl Cortina. If you do run one, at least put some decent synthetic gearbox oil in it.  Sent from my CPH1607 using Tapatalk    1 CHESTNUTXE reacted to this Share this post Link to post Share on other sites
tpak addict 1,909 Posted July 13, 2017 This is definitely (011) 3.26 1st 1.99 2nd as I checked it... The other box I have is a (009) 3.06 1st 1.84 2nd Its only running a stock 4.1EFI with extractors and exhaust. so should be fine 1 CHESTNUTXE reacted to this Share this post Link to post Share on other sites
CHESTNUTXE 7,299 Posted July 13, 2017 yeah i think yur right Share this post Link to post Share on other sites
deankxf 20,266 Posted July 14, 2017 On 13/07/2017 at 7:08 AM, gerg said: Be careful about how much torque you put through a wide-ratio box, especially in a heavy car. The higher-capacity boxes always have taller 1st gears due to the lower primary reduction. Â I would be sus about putting a 6-cyl rail behind a V8 or even a healthy 6, these boxes are really only a medium-duty unit. One look inside them and you'll see how tiny those gears are... just imagine that kind of power going through them. I actually broke 2 teeth off second in a 3.06 box in my 6-cyl Cortina. Â If you do run one, at least put some decent synthetic gearbox oil in it. Â Â Â Â Â i did 80,000kms on a fully reco 6cyl cortina single rail (lowest first gear i had of the three 6cyl boxes i gave the reco mob) behind My 351 with 2.92 diff.. it always got floored from a stand still, but most of the kms were highway and it only had engine oil in the box(reco mobd recomendation.. never changed it either) i broke 3 single rails that wern't rebuilt with it first, one lasted a week only.. so i think in good condition they are fine... they often have no oil in them due to the selector shaft seal being chopped out(due to the shifter housing also having worn bushes) 2 SLO247 and gerg reacted to this Share this post Link to post Share on other sites
SLO247 1,713 Posted July 14, 2017 8 hours ago, tpak addict said: This is definitely (011) 3.26 1st 1.99 2nd as I checked it... The other box I have is a (009) 3.06 1st 1.84 2nd Its only running a stock 4.1EFI with extractors and exhaust. so should be fine Definitely put a selector shaft seal in it to keep the oil in, never seen one that didn't piss oil out. 2 deankxf and CHESTNUTXE reacted to this Share this post Link to post Share on other sites
NZXD 2,328 Posted July 14, 2017 I have a single rail, not sure if it's a 6cyl or 8cyl one???Had it rebuilt, seems to work as it should, we will see how it goes in the future I suppose. Sent from my iPhone using Tapatalk 1 CHESTNUTXE reacted to this Share this post Link to post Share on other sites
CHESTNUTXE 7,299 Posted July 14, 2017 if you dont bang it around to hard it should be fine,if its out of a xc or xd more than likley its a 009 box 250/302, or xb 2.78 first all 6 and 8 except 008 351 box 2.46 first. Share this post Link to post Share on other sites
NZXD 2,328 Posted July 15, 2017 if you dont bang it around to hard it should be fine,if its out of a xc or xd more than likley its a 009 box 250/302, or xb 2.78 first all 6 and 8 except 008 351 box 2.46 first.I believe it's a XC box from what I was told, I'll check the numbers once it gets here. I'll go a top loader next, if this ever gives trouble. Sent from my iPhone using Tapatalk Share this post Link to post Share on other sites
CHESTNUTXE 7,299 Posted July 15, 2017 bloody loaders are soooo expensive now,if you can find a tc corty with one😃 Share this post Link to post Share on other sites