Hi all, I've had a clunk for many years in my 1991 land cruiser, about 180K miles on it. I recently had enough money to buy a new driveshaft so I went for it. Found a fellow on ebay that custom makes them with new U-joints and splines. I sent him my measurements, 41 inches from flange to flange, and he sent me a shaft that is less than 38 inches, and not enough play in the splines to safely use it. When I talked to him he accused me of not knowing how to measure things, he is wrong. Anyways, sent it back and haven't asked him to remake one yet, he was going to just add on the 3-4 inches to the one he sent and I didn't think that would be strong enough, welds and such. So, I found another source on ebay, their measurements claimed 38 inches from center of U-joint to u-joint and I figured that would be about 41 inches flange to flange, bought it, same deal, about 4 inches short, false advertising. So, now I realize that MOST fj80 land cruisers have a shorter driveshaft than mine. I don't know why but maybe it is because later models have a viscous coupler adding to the rear of the transfer case? Can anyone shed some light on this? Can I put a viscous coupler on the TC and driveshaft after market? That might help end the "clunk". Is there a part number for the proper length shaft so that I can buy one? I'd still like to have the new shaft for the new splines and u-joints which might be contributing to the clunk, but it seems I can't get the right length because 1991 was an odd year for shaft length. Thanks in advance, Bob in Michigan.