The camaro T5 will have better gear spacing and a longer spline area on the input shaft. The S-10's have a short spline area and will require you to machine the splines longer and cut back the input shaft bearing retainer and the tip off the pilot area. The S-10 rear housing has the shifter moved forward. The Camaro rear housing has shifter mounted farther rearward and the trans mount clocked at 15 degrees because the trans was clocked to move the shifter 2" closer to the driver in the camaros/firechickens. The trans can be mounted straight-up. Any 4-cylinder of 6 cylinder T5 has 10 spline input shafts and has a limit of 220lb-ft from the factory (a little more if you baby it). The V8 camaro trans have the 26 spline input shafts and are good for 300-330 lb-ft of torque (just a little more if you baby it). If you run a 10spline input trans, then you will need a clutch disc from an '88 Chevrolet Astro van with a 4.3 / T-5 arrangement. The 4.3 liter S-10's did not get the T5, however a NV3500 with integral bellhousing (which wont work with the 235).
T5's also came in Toyota Supras, Isuzu Rodeos and a few others. Another trans is the NV4500 from a Dodge. The input shaft is 1" longer and would require a spacer, however it is a much more stout trans than the T5.
The rear you want for width is either a GM metric or a 4x4 S-10. I personally would look for the 8.5 rear out of a ZR2. The AD has a 58" track width. A 2WD S-10 has 54.4" track width.
Hope this helps
