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Index > Engine/Drivetrain > Thread: What LSD Fits
Thread: What LSD Fits
ynot


Newbie
6th Gear
Posts: 10
posted March 02, 2004 11:00 AM

What LSD Fits

Hey everyone, what Mazda LSD fits the REPU? For example will a LSD from a serirs 3 Rx7 fit? Any help would be great. Thanks.

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rotarydave


Hauling
Posts: 108
posted March 02, 2004 04:37 PM

I know of NO LSD unit that fits for a REPU

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Klaus43


Rotorhead
Posts: 1259
posted March 02, 2004 05:07 PM

But...

...there must be a way! Please, someone tell me there's a way, short of going to a Ford product rearend...

       
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rotormunky


Redlining
Orlando, Florida
Posts: 424
posted March 02, 2004 10:12 PM

quote:
...there must be a way! Please, someone tell me there's a way, short of going to a Ford product rearend...


Why don't you look into the Amigo rear-end Klaus?

You get disc brakes (nice vented ones) and keep the 6x5.5" pattern.

I'm fairly certain its the right width.

If it is, then you just grind off the suspension mounts, weld on those from the REPU in the right place, have a new yolk put on your drivaeshaft and you're in business.

I know it sounds like a lot of work but:

1) Grinding and welding (the easy part).
2) A new master cyclinder and an adjustable propoertioning valvae should run you less than $100.
3) Take some careful measurement and have a driveline shop fix up your driveshaft.

If I have the money when I get to that point, its what I'll likely do. I want the LSD and the brakes. If it were just one or the other I wouldn't bother, but the package makes it more attractive.


____________
-Martin
Orlando, Florida

http://www.themonkeyhouse.org/REPU

'77 REPU (Some assembly required :)
'91 Cabrio (Battered and bruised, but she's still my baby.)

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brad


Rotorhead
Posts: 1672
posted March 03, 2004 10:16 AM

i know of a 3rd gen Rx7 LSD

that was fit into a REPU rear. no details on what if any machinework was required, or if he got to keep the short REPU gears. but the lsd pumpkin fit and cranks.

one day i'll call him and see what's up.
____________
-brad-
74 REPU Lawn Green
81 Rx-7 racecar. 12a J-
Bridge

       
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Klaus43


Rotorhead
Posts: 1259
posted March 03, 2004 12:27 PM

No money for anything right now...

...but now I'm curious about the details, Martin... like what gear options exist in those Isuzu 'ends, and how heavy-duty they are, relative to our REPU's... or not...

       
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rotormunky


Redlining
Orlando, Florida
Posts: 424
posted March 04, 2004 04:35 AM

quote:
...but now I'm curious about the details, Martin... like what gear options exist in those Isuzu 'ends, and how heavy-duty they are, relative to our REPU's... or not...



Gear ratios should be available on the web easily enough.

As far as strength goes its got to be at least as strong as the REPUs rearend, but they back up a V6 (I don't think the I4 comes w/ the disc brakes) so they got to be able to withstand a decent amount of torque.



____________
-Martin
Orlando, Florida

http://www.themonkeyhouse.org/REPU

'77 REPU (Some assembly required :)
'91 Cabrio (Battered and bruised, but she's still my baby.)

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brad


Rotorhead
Posts: 1672
posted March 04, 2004 12:14 PM

quote:
...but now I'm curious about the details, Martin... like what gear options exist in those Isuzu 'ends, and how heavy-duty they are, relative to our REPU's... or not...


The late 80's to late 90's Isuzu Rodeo and Hombre truck V6 didn't make much torque. I'd guess 180ft/lbs.

But that is MORE than what REPU makes!

I recall thre was a real short 4.56 ratio in the old Isuzus, but NO idea what year or model truck.

Gotta search the web!
____________
-brad-
74 REPU Lawn Green
81 Rx-7 racecar. 12a J-
Bridge

       
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WVoigt


Revvin Up
Posts: 75
posted March 04, 2004 06:06 PM

Isuzu??

Just a reminder,
Isuzu made Chevy LUV.
____________
1974 Repu
1973 Courier
1989 Car Dolly

       
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