WTB: E36 3:45 diff

[bmw325i 0]

Need a cheap diff case with 3:45 ratio to drop a LSD pack into.

If nothing pops up i'll mission it to silverdale and back for one from Ray.

[*Glenn* 854]

I'd go 3.15:1 or 2.97:1 if I was you Jase. I went 3.15:1 and should have gone 2.97:1

BTW: My Ti runs an E30 medium case. Your coupe runs a different diff casing. You might have to get a different diff with the right ratio you want and swap the crown wheel & pinion into your case. Which will probably mean having to fit bearings as well. I had Diff Specs do mine with a solid spacer for the pinion bearing preload (better when you use an LSD) instead of the collapsible sleave. I supplied the diff casing and the C&P. They fitted it all & supplied all new bearings, cost me $900 + $600 for the LSD + C&P which was a swap for some parts from Brent.

Edited December 9, 2009 by *Glenn*

[westy 614]

3.46 is an odd ratio to find in an E36 is it not?

There is an E30 3.46 but like Glenn says, it's a high ratio for E36.

[BM WORLD 1263]

i have one. yes very rare

[bmw325i 0]

I would use my 315 case thats in the car now but i want to gear it differently so it has a little more low end and not as much top end which is why i want to go for the 345-346. Anything higher than that will be too much for the open road where as the 345-346 will just.... be ok and will be a bit more fun on the track.

[*Glenn* 854]

Ooops... I forgot you had the 3.15:1 allready. I still wish I'd gone for a 2.97:1 though. I hardly use first gear

[bmw325i 0]

Yeah you couldnt beat the 297 for a nice cruisey round town gearing but wheres the fun in it when you don't want to be round town cruising .

Ill need to stop in sometime too Glenn and show you the difference in my cars response etc since going back to the other oil.

[pjay 8]

I have a 3.46 in mine

[*Glenn* 854]

You'll be doing just on 3,000rpm in fifth @ 100kph with the 3.45:1 , I think Tony was over 3,000 rpm with a 3.64:1

Edited December 9, 2009 by *Glenn*

[briancol 3]

I have a 3.46 in mine

And although it accellerates quicker. you are getting through a lot more fuel than when your car was an auto, aren't you Peter.

[westy 614]

You'll be doing just on 3,000rpm in fifth @ 100kph with the 3.45:1 , I think Tony was over 3,000 rpm with a 3.64:1

Yup. Indicated 100 was 3000rpm so just over at actual 100.

Good for track work, a bit tedious for most on the road.

Fuel use didn't seem to suffer too badly but I never really took too much notice.

Edited December 9, 2009 by westy

[pjay 8]

Yup, 550 to a tank if I'm LUCKY. Usually 450.

3100 at 100 kph. Whines like a dog at the moment too, need to get it checked over.

[westy 614]

That doesn't sound like a 3.46 Peter???

Should be 2900-3000 at 100kph.

[e30ftw 396]

Kerry has a 3.64 in his e30, with the Getrag 220 (1:1 final drive) and said it's turning 3300rpm in 5th at 100km/h.

[bmw325i 0]

Fuel wouldnt really change too much. Less strain on the motor going up hills/rises etc if its pulling a higher rev. Wouldnt exactly put a LSD is a car if you were worried about fuel though would you? lol. Fuel is the best waste of money you can buy in my opinion. Lovvvvve driving.

[HELLBM 1531]

Have a couple of 3.07`s and a few 3.46`s (8 bolt). Also 3.38 and 3.45 (6 bolt).

Call if keen.

Regards Ray

0212435526

[pjay 8]

3000/3100. Never sat at 100 long enough while thinking of remembering the revs really.