hi all i have a compleat seirra rear end its all in good nick new brakes drive shafts are good and i want to get rid of it how can i tell what ratio the diff is i cant tell on the tag cos some of it is missing it was off a 2.3 auto and had done 46,000 miles i know cos it was my neighbours car and he had it from new but i would just like to find out what ratio the diff is it was a 1984 a reg car thanks

vin plate under the bonnet, axle pt ar box, whats the letter? Failing that, spin wheels and count prop revs

thanks ill have a look

I've got a list in front of me and on 2.3 diesel Sierras '82 to '87 it says some had 3.14.
If it is a 2.3V6 some had 3.62. Later petrol models were 3.38

My list also gives tag codes for example 83BG 4006 BA or 83BG 4006 AA. Not much help if you haven't got the tag!

Not the definitive answer I'm afraid but a good chance it may be one of these two.

John

hi the only number i can find is on the casing its 83b6-4026be and it was a v6 2.3 sierra

point it downwards then take the backplate off the code is stamped on the crown wheel. Youll also be able to prove the condition of the teeth with a photo if you want to sell it, and also see if its lsd or not.

quote
hi the only number i can find is on the casing its 83b6-4026be and it was a v6 2.3 sierra
The number you have quoted is not in the list
Could the number be
83BG 4006 BA. . This is given in the list as :Some fitted with 3.38 LSD. What a find if it is.

thanks to everyone for there help ill take a good look at it tomorrow and see what i can find ! ps is ebay the best place to sell it ?

If it's 3.38 or 3.14 I'd be interested.

Agreed, THIS is the best place to sell it...

Would also be interested in the differential as I'm presently trying to source a Ford 3.38 diff for my Leugo Velocity BEC

hi iv stripped the back plate off the diff and have found some numbers its got 83bg 4210 kc 3,14 stamped in the crown wheel and its got 417 464 3,14 painted on the crown wheel as well so is the ratio 3,14 ? and can you tell from the picture if its an lsd ? thanks
Rescued attachment 102_4032.JPG

heres another pic you might be able to see the diff better
Rescued attachment 102_4036.JPG

That's a 3.14

They fetch a nice price on ebay

its not an lsd though is it ? and what sort of money is it worth iv got the diff and drive shafts and the brakes and the brakes are like new too

someone will give you 200 for the diff. And no, its not an LSD.

[Edited on 11/2/07 by JoelP]

Nice find
there's a sierra diesel estate sat at my local scrappy who's tag I can't read.
Not been brave enough to take the gamble yet lol

well its for sale i got the diff driveshafts and complete brakes for sale or would swop for a body kit