How to identfy ea71 transmssion

[danrenfroe2016]

I have a 1980 brat 4wd

and a 78 or 79 brat motor trans..

 

I understand that the 78 or 79 trans has lower gear ratio's than the 80???

 

So how does one tell the diffence between the different transmissions?

 

-Daniel

[moosens]

I'm thinking you'd need the little decal tags to verify.

 

Geez,I had no idea about lower ratios but then again there's the mystery of 1976 ..... (final drive ration - so you don't have to ask)

[danrenfroe2016]

According to http://www.indysworld.com/80s/

 

the gear ratio page says that the 1979 transmission has lower ratio's than the 1980 and beyond transmissions. i want to confirm what transmissions I have, because a first gear difference of 4 to 3.6 is like a 10% difference.

 

Decal tags???? Were would this be placed??? Cant find anything on transmission.

 

Thanks.

 

May just have to turn the transmission and count the revolutions.

 

-Daniel

[danrenfroe2016]

I'm thinking you'd need the little decal tags to verify.

 

Geez,I had no idea about lower ratios but then again there's the mystery of 1976 ..... (final drive ration - so you don't have to ask)

 

Ok, figured it out... Just did a rpm / tire size / speed calculation and figured out what Tranie i have.... Thanks.

 

-Daniel