Jump to content
Ultimate Subaru Message Board

Diff. identification


Recommended Posts

Spent some time looking at archived posts but did not come up with a satisfactory answer to my question. Is my diff. a limited slip? I read that in a ea82 1988 loyal that the diffs were 3.7 but I also read some info to the contrary. My diff is a 3.9 and the p/n is 622006022.

 

Thanks

Link to comment
Share on other sites

Clutch-Pack LSD:

1985-1986 (production up to 3/86) XT 4WD is listed with a 3.70 LSD option (Subaru part # 7220 11000).

1986-1987 (production from 4/86-10/86) GL 4WD is listed with a 3.70 LSD option (Subaru part # 7220 11001).

1986-1991+ (production from 11/86) Loyale/GL 4WD is listed with a 3.70 LSD option (Subaru part # 7220 11002).

1988-1991 GL and XT-6 4WDs with single range transmissions are listed with a 3.90 LSD option (Subaru part # 22011 GA022).

July 1986 onwards LSD assembly (just the carrier) is also available new from your Subaru dealer if you wish (Subaru part # 22049 GA010).

NON-LSD

Most R-160s you see under Subarus will NOT be an LSD. There were no LSDs of any kind in 1995-1999 Subarus.

Look for the following Subaru part numbers (look at the foil sticker for part number and ratio):

7220 11010: 3.70 ratio

7220 11011: 3.70 ratio

7220 11012: 3.70 ratio

6220 06020: 3.90 ratio

6220 06021: 3.90 ratio

6220 06022: 3.90 ratio

27011 AA151: 3.90 ratio

27011 AA040: 4.11 ratio

27011 AA110: 4.11 ratio

27011 AA111: 4.11 ratio

Link to comment
Share on other sites

The sticker would say LSD on it if it was, and they didn't make a 3.9 LSD, except as a rare option on the XT6, and I think that may have been the VLSD. At any rate, only turbo, full-time-4WD (AWD) 5 speed's for 88, and 89 got the 3.7 LSD (And some older RX's I do believe).

 

To verify - jack up the back, put the transmission in 4WD - turn the wheel - if the opposite wheel turns the same direction it's an LSD. If it turns the opposite direction it's a regular open diff.

 

GD

Link to comment
Share on other sites

 Share

×
×
  • Create New...