Join Date: Jan 2008
Location: Seattle, WA area
Re: limited slip 7.25" Rear End??
The relatively weak 7.25 axle was only used behind the I6, and so has very limited aftermarket support as a performance item. Factory LSD (limited slip differentials) do exist, but are very rare. Even if you found one, re-fitting would be expensive if you're not doing the work yourself.
The 8.8 is not the only option, but likely the least expensive, as complete limited-slip assemblies are rather cheap on local listings and wrecking yards - at least as compared to the 8" and 9" versions. A couple local 'yards around here have limited-slip diff's for about $30 and complete rears (LSD or not) for about $60. Add some good CV or MkVII rear discs while you're at it for about $50 and miscellaneous parts to finish and you could be under $200-250 with careful shopping. Even a non-LSD axle and separate LSD to install would be nearly as cheap as doing the 7.25, with much better availability of gears, service parts, brake options, and such.
There are many options, but if your wallet is ruling the project like most are, do some local pricing and see where it all fits for you. Generally, cheaper means more work on your part, and you'll have to weigh that factor for yourself.
-=≡ If it was easy everyone would do it ≡=-
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