So I got the assortment of diff fluids in the mail that I ordered yesterday, 10k, 30k and 50k. I decided to open the front one first, I cleaned it out and re-lubed it. After reassembling everything I had it on the bench with no wheels and hit the throttle but only the rear wheels were spinning. Now my question is this: Did I reassemble it wrong or is it not spinning because it has the thickest fluid of all 3 diffs and all should be fine once I change center and rear?