i need yalls help i have a 79 rx7 which has small axle rear with gsl posi pumpkin.......i bought a 85 se pumpkin that has 4.44 gears in it i swapped the lsd unit from the gsl and changed the gear then when i got everything together i put on the car i go to attach the drive shaft i cant because the plate is bigger on the se pumpkin then the gsl pumpkin so my question is can i take that bolt off white the diff is still in the car???? can i put it back in while its still in the car??? i dont want to take all this back apart thanks

 

iirc u just need a 83-85 driveline to accommodate the larger flange but i dk if thats right (3 days no sleep)

gl tho

 

so if i get a driveshaft im good to go???

 

The plate comes off if you remove the big bolt then swap it out for the one you need / orginally had to match your driveshaft.

Might need a impact gun, although I'm betting w/the rear already in the car just lock it up by applying the emergency brake and it should come off with a nice sized wratchet.

 

Won't solve the other problem you're going have. The SE had larger axles, your's has smaller. You're going to have to take both diffs to a shop and have them swap the SE ring and pinion to the 79 diff, along with the lsd parts and early driveshaft flange.

 

Too bad you didn't just get the entire rear end. Would have been a much easier swap that way. www.re-speed.com might have axles compatible with your new setup, but they are high performance (Moser) so they probably aren't cheap.

Good luck....




.

 

But Trochoid he said he has it all assembled already....???

I *THINK* he has the entire rearend & housing in the 79 from a later style GSL unit already.

 

ya i just swapped my lsd components with the ring and small axle to the carrier that had the pinion for the 4.44 and got an se driveshaft everything is working good lol its a frankenstein but it wrks plus i get to keep the stock original look of my car

went to the 1/8th tonight my best time was 10.882 my mods are as follows tell me what you guys think i should be getting in the 1/8th

full rb exhaust with road race header and street port muffler
stock port
emissions removed
mechanical secondaries
ngk wires
4.44

and my car does have ac!

 

booo yaaa lol i was right

 

haha yup yup

 

If he had the unit in an early small axle housing, then all you may need is the later driveshaft. If he had it in a a large axle housing then you will need to use your core and have it rebuilt. I'd pull the unit and an axle and test fit the 2 out side of the housing to see how they mate up. The large and small axles have a different spline count.