Hi! I am Mihai, I'm from Bucuresti - Romania and I'm new on this forum. I have a 1991 Chevrolet Suburban V2500 Silverado 6.2L Diesel, but here, in Romania, is not an usual car, so, is not so easy to find somebody who knows this cars! For this reason, I decide to come here and try to speak with you. I hope you understand me and excuse me, if I don't speak corectly! On the first look, I have on my car (but I'm not shore): - 4L80E gear box (17 bolts). 4 speeds automatic, with overdrive (P, R, N, D inside on a ring, D, 2, 1). - NP 241 transfer case. I understand is with chain. - GM 10 bolt 8-1/2" ring gear front axle, with 4 shock absorbers. - GM 14 bolt 10-1/2" ring gear rear axle, but, how can I know is not a GM 14 bolt 9-1/2" ring gear? From the outside have same look! I ask you: - How is change the speeds, because, until now, I was able to count only 3 speeds?! (I don't run faster than 95km/h) - What is the speed limit on each speed? - Where I found some informations about this engine, V8 6.2L Diesel (bore x stroke, capacities, fuel economy, etc.)? - The rear brake is not equal on bouth weels, the right weel is block very easy! What is the cause? - I have some problems with the dash board lights. Where I found an electric diagram? - When the engine is hot, it's start very hard (the light from the glow plugs is not work anymore, after first start!). - Where it have the hazard lights switch?! How it's work the flash, when the lights is off? I stop here, for moment, until I remember another problems!!!