Does anybody know if an 84 GLS-SE rear end will fit underneath a 1973 RX2?

 

If you are referring to just the chunk, the answer is no. The 81 to first half of 83GSL chunks bolt right in. I have no direct experience with the swapping out an the entire rear end, but am guessing it will have to be shortened.

 

i heard only the 81-83 gsl rear end will, but please let me know, cause i can get a 84 gsl-se for 600 bucks that runs great. i would realyl like to swap every thing from it into my 72 coupe. or even my 71. lates matt22

 

Any chunk that's 83.5 or newer will fit, but nothing later. The only thing unique to the GSL is that it's an LSD unit, and it's the only LSD chunk that ever came to the US that we can use. If you're checking under old RX-7s, you'll want to find one that has threaded bolt holes on the input shaft. GSL-SE will all be larger-splined units with thru-holes that your axles won't fit. There's a GSL rear on thepartstrader.com that would have what you need.

LSD was an option on RX-7 GS, independent of the GSL option. If you find a S2 RX-7 with disc brakes, it will have the LSD chunk you're looking for. If it has drums, check the bolts in the input shaft to see if it might have an LSD optioned-in. It's rare, but I've seen it once.

 

Well im going to run a 1985 13b so I planning on a custom drive shaft just want the rear for the lsd and the disk brakes im all so going to run a second gen front end

 

In that case, you're better off just putting shock and spring mounts for the RX-2 onto a GSL-SE rear axle and using GSL-SE front as well. If you can find the right LSD, you can also convert the brakes from RE-Speed (one of the sponsors) that allows you to run GSL caliipers and discs on an RX-2 axle. It works great.

 

what do you mean your gonna run a second gen front end? And i agreewith Crit the 81-83 lsd and the GSL disks are the way to go. thats what i plan to do if i keep my RX2. Lates matt22

 

Im going to use the front end suspension from a second gen rx7 it’s almost a bolt up as I was told by gambone also the pick n pilage close to me has the rear end for 84 buks and the front for 54 so not bad at all

 

well let me know how it goes. lates matt22

 

I thought that you had to cut the axles down a bit to fit in a s2 lsd. like an 8th of an inch or something.

 

Well, I didn't. The LSD is exactly the same size.

 

so how exactly is the 2nd gen front suspension a bolt up piece?
have you started yet? please inform us, but mostly me. Matt22

 

Oh wow I thought there was cutting involved! So I was waiting until I had some more time (and cajones) to do all the cutting and chamfering. If its that easy then Im starting as soon as I can. Next stop... Junk yard!!!

 

I haven't started on the front end yet, but will as soon as I find one. I still need to go and get the rear end at pick and pillage.

 

looking for one of these?
we are all on the same page.
yup...half off day at pick'n'pull!!

 

yep that be it goin to get it this weekend at my pick and pilage how long did it take was it just you or did you have help

 

Personally, I would go to autozone and borrow a slide hammer (loan-a-tool service), take some metric sockets with me, pop the axles out, and just walk home with the diff chunk. If you want to use respeed brackets to use the disc brakes too, then just get a wheelbarrow and take the axle like he did.

Nice pic, by the way.

And don't forget to check that the driveshaft bolt holes on the diff are threaded. If they're not, then it won't fit.

 

thanks for all the help guys i love this place

 

I dont think I said the front end would just bolt up, your going to need to build a sub frame, look at the pics, the rear lots of sheet metal work, in the end you well have a MOST GOOD HANDLING CAR

 

Hey Hector, did you ever get your diff put in?

 

Just got back frome pick and pillage and the car had been crushed cry cry and so I will have to wait for another to show up.

 

so basically what your saying is the entire rear sub frame off a fc could fit under a RX2? with lots of fab work and planning. keep us updated. Matt

 

This is my next try, has any one done it yet hehe looks like fun.

https://www.rx7club.com/1st-generation-specific-1979-1985-18/ford-8-8-diff-into-fb-pics-included-360783/