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Learning how to build Lotus Seven replicas...together!
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PostPosted: December 6, 2018, 3:12 pm 
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Joined: July 20, 2010, 7:56 pm
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Location: Warrenton, Virginia
Will you be using the stock suspensions / rear axle? A narrow 7.5 isn't hard to do. Should be strong enough for the V6.
A pair of custom length axle shafts from Moser, drilled for your bolt pattern, runs $295.00.
http://www.moserengineering.com/C28CST-Custom-Length-C-Clip-28-Spline-AxleS.item.
Stock 10" drums redrilled for the MGB 4 x 4.5 bolt pattern should fit inside most "B" wheels.
Ron

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PostPosted: December 6, 2018, 9:08 pm 
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Joined: January 31, 2012, 12:49 pm
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Location: Louisville KY
The S10 axle is 54.25" between WMS for 1983-2004 Chevy S10 2WD, GMC S15 2WD.
49.875" between backing plate flanges.

drivers side width - 25.375
pass side width - 24.5

82-88 (with exceptions) 26 splines
88 + have 28 splines

Ratios between 2.73 to 4.10.

Having said that... if you want one with disks then you'll need one from a 98 or so Blazer (I never found one). IF you one want with Posi, good luck as that is equally rare. So count on getting one of those later 7.5" S10 axles (I paid $50) and putting in your own posi and converting it to disk brakes.

The Camaro versions are much wider, as are the Jimmy axles... 4" as I recall...

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Hayes front, S10 +2 rear, Lalo body.
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PostPosted: December 7, 2018, 9:34 am 
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Joined: September 22, 2005, 8:12 am
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Location: 4AGE in S.E. Michigan
Only about 3% of the 2WD, S-10's had a LSD. If at a pick & pull look for the high output motor in the S-10. [individual intake runner manifold] Also there should be a sticker on the back side of the glove box, which will indicate the options including the LSD.
DaveW


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PostPosted: December 7, 2018, 6:57 pm 
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The truck "LSD" is usually a gov-lock which is not the same as a sports car LSD (clutch or Torsen) When one wheel spins a LOT faster than the other, you get a big clunk, then the diff locks 100%. It unlocks once the wheel speeds are re-equalized. Good for snow, ice, mud, but not sports cars. Can usually get a Camaro torson for $100-$200 on eBay -->then install in the S10 rear


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PostPosted: December 7, 2018, 7:24 pm 
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http://www.britishv8.org/articles/2007-techsession6.htm

I think Chuck will be happy with the diff he has as long as the area under the bump stops on the housing is not too badly corroded. May want to change the fiber thrust washers on the side gears too.

If not, the postal jeep dana 44 is the right width and usually comes in 3.07 or 3.73 (different offset carriers). If you want any dims, let me know.


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PostPosted: December 8, 2018, 11:09 am 
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Ha, using parts from a postal carrier Jeep. That would be totally Locost. To bad they have auto transmissions or you could get a donor for about $50. Gotta love it.

Cheers,

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Damn! That front slip angle is way too large and the Ackerman is just a muddle.

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PostPosted: December 9, 2018, 3:07 pm 
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Joined: July 17, 2008, 9:11 am
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Location: West Chicago,IL
STranger 7, Originally I had planned an IRS from a Miata. I'm not too interested in nailing down the project at the moment. I am looking at options obver the next year. Body rustoration is 1st on the list. Perhaps something else will float-my-boat when the time for deciding is closer.


Geek, I haven't measured this yet. Internet search says the MGB diff is 51.75" from wheel mtg face to wheel mtg face.

MV8, Thanks for the link. As usual you have some good info. If I decide to narrow, 54.25-51.75= 2.5. Divide that by 2 = 1.25" I wonder if the S10 axle is such that there is enough spline to get away with just cutting 3/4" of it off either end of the axle and calling it done?


Edit: I just looked up the S10 axle. No chance that that idea would work. And the cast area of the axle is too large for cut/sleeve splicing like I did on my Locost.

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PostPosted: December 9, 2018, 4:15 pm 
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They use C-clips at the side gears to retain the axle so unless you eliminate the clips, new grooves would be needed. Also found this after posting about the jeep axle: http://www.britishv8.org/articles/Dana44Axle.htm

I have a bronco 2 if you need dims on that also. They typically have 3.73 7.5 with a traction loc diff, 5x4.5bc, and a long/short side, though shortening the long side to short side dims may center the diff case but may still be a inch or so wider than you want.

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