1450 driveshaft rubber couplers
 

I am finishing up my restoration on my 1450 and would like to upgrade the drive couplers. My question is do I use 2 on the front, rear, or both, and i have seen using one coupler with a small center hole but does that go towards the shaft, or motor and trans. Right now I have 2 on the rear and it seems ok, but would like to know what other guys have done. Thanks for any info Jimmy

I did 2 and 1 with my 1250, but am pretty sure 2 and 2 is fine. Mine originally only had 1 and 1 and they were pulled by the couplers really bad originally. The extra disc took up the extra space perfectly on one end, but the end with just the one disc still had some pull on it, wishing I had put two there also. I was also told but didn't do this, that NF couplers have a smaller center hole than the WF and QL's and would add more strength and longevity to drive line. I hope someone else speaks up about this. :beerchug:

The small hole flex disks are not the best choice, they tend to interfere with the couplers....what I mean is the coupler will actually slight protrude into the center hole of the flex disk. I am using two disks at each end on my QL driveshaft installed in my 149. I had one of the NF style FD (149 uses this style) that I used (bought it prior to deciding on the QL upgrade), but I had to use a grinder on the center hole to allow clearance for the coupler.

My advice, get the correct FD to start with, 2 on each end make it much beefier and should last a very very long time.