redg Posted April 29, 2006 Share Posted April 29, 2006 I've got a Full time 4wd box with a lockable centre diff, not sure what it is out of, as I'm in Australia and the box came from the US. It's either out of an RX or What you guys call a GL-10 (we didn't get any turbos down here). I want to put it in what we call an 89 L-series Touring Wagon with MPFI and a 3.7 rear diff. How can I confirm that the full time box has a 3.7 front diff to match the rear on my wagon? Any help would be great. Quote Link to comment Share on other sites More sharing options...
jeffast Posted April 29, 2006 Share Posted April 29, 2006 well if your on a dirt road you could lock the center diff and the tires would skid if the diffs didn't match or you could toast the center diff getting there, but that may be unpractical, i believe the gear ratios in turbo cars is 3.7 vrs 3.9 on na cars Quote Link to comment Share on other sites More sharing options...
calebz Posted April 29, 2006 Share Posted April 29, 2006 If it is a FT 5 speed and it is not out of an XT6, it is 3.70 Quote Link to comment Share on other sites More sharing options...
redg Posted April 29, 2006 Author Share Posted April 29, 2006 Thanks guys, looks like I'm almost good to go, just need to get my hands on some turbo drive shaft cups. Quote Link to comment Share on other sites More sharing options...
Chris Rogers Posted April 29, 2006 Share Posted April 29, 2006 Thanks guys, looks like I'm almost good to go, just need to get my hands on some turbo drive shaft cups. 3.7. mine was that. had a FT SR box in it (and yes I have a factory turbo L wagon in brissy.) Quote Link to comment Share on other sites More sharing options...
RONAN Posted April 29, 2006 Share Posted April 29, 2006 The way I confirmed my front and back were the same, was since my car was up in the air on 4 jack stands already, I put a piece of masking tape on the front and rear fender at 12 o`clock and marked the tires with yellow crayon in line with the tape. Put the vehicle in a gear that you can turn by hand and after a revolution it should come back to the same point on front and back. GRANTED, this is a manual transmission... Quote Link to comment Share on other sites More sharing options...
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