Hi guys,I am the guy who wrote the "Beefing the 7.625" 10 bolt" article in the tech section last winter.If you read my article then you know that I am using a Zexel Torsen H.D. unit from SLP.I paid $299 for it.
I was just looking at the "internet specials"
on the SLP site.All I can say is get your credit card out!They have the H.D. Zexel torsen unit,your choice of a 3.42,3.73,or 4.11 gear set, a AAM aluminum differential cover,and a electronic recalibrater for your sppeedometer for (you will not believe this) $299!!!!!
Hell at that price I may order it just to have another one!
Just wanted to let all my third gen. brothers know,so they can save a significant amount of money!!!

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92 GTA(only 226 made)ort matched sportsman heads with 2.05 valves,64 cc,milled .015,.028 head gaskets,port matched Accel runners,port matched plenum,port matched edelbrock intake,flow matched injectors,jet hot headers and 2.5" mandrel bent exhaust,Flowmaster muffler,underdrive pulleys,slp cam,1.6 rockers,slp cold air induction,52mm throttlebody,performance resource custom chip,Dyna module,Screamin Demon coil,Accel 8.8 wires,Bosch platinum plugs,timing at 10 degrees,tb bypass,relocated map sensor,shift kit,Fairbanks billet servo,pump vane kit & 2400 stall,Torque converter lockup switch,3.42 posi with welded axle tubes,Zexel Torsen HD diff.,Summit rearend girdle,solid pinion spacer,& alloy axles.Boxed panhard bar,lakewood lca's & edelbrock strut tower brace,Jeg's torque arm,Jegs welded in subframe connecters.Performance friction pads,turbo slotted front rotors,stainless braid brake lines.Roh ZT 17x8.5 front wheels with 255/40ZR/17 tires. 17x9.5 rear wheels with 275/40ZR/17's on the street.Hoosier 26x9.5 slicks on the strip.

what is the part number of the kit. i cant find it on the site?

TIA,
RS

Does this set whine like other gear sets I am thinking about the motive GM 3:73 because I have heard for sure it does not whine.

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http://sites.netscape.net/bulldogfrazier/homepage
+
http://www.fracoinc.com/


Keep your ride shinning with pride

I belive the number 65002. It's under the "specials" category.

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88 firebird formula
350 Vortec TBI
214int/224exh, .471int/.491exh
Edelbrock headers
SIX-speed
Eats LS1's with a 2.73 open rear and 2 1/4 stock catback

My Formula

Man, I called them and it's not the deal you think it is. Damn, I'm pissed!!!! 299.95 only includes the zexel torsen. The gears and other items are "A and B options". Damn it!!!

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88 firebird formula
350 Vortec TBI
214int/224exh, .471int/.491exh
Edelbrock headers
SIX-speed
Eats LS1's with a 2.73 open rear and 2 1/4 stock catback

My Formula

I was able to get the zexel-torsen unit from them 3 weeks ago for $99. I thought it was normal price but maybe it was only a limited time deal.

The $99 Torsen is the regular model, which is the one installed in the '99 and newer 4th-gens IIRC. The $299 Torsen is the HD model, with 2 sets of gears inside instead of one set. I think the extra set of gears means it can take more torque and abuse, and maybe handles a little better in the twisties, but I'm not positive on that. I do know that it works great in my IROC.

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Greg Westphal
'87 IROC 305TPI/A4

The plot thickens... I just went to SLP's site and did a search for the part number that I used when I ordered my zexel-torsen unit. I used part number 64501T. Here's the link to the results:
http://www.slponline.com/view_produc...TNUMBER=64501T

The only difference I can see is that the one I got says that it is an OEM diff, where the other one says its a HD unit. In any case, SLP's ad for the $299 package seems to be misleading. IMO it says $299 is a package that includes the zexel-torsen, gears, cover, and calibrator because in the ad it says everything is available individually.

Aha! Thanks Greg for the clarification. Still, SLP's ad makes it seem like $299 includes everything, and not just the diff. Oh well, I already got mine.