Upgrade to LBP - Ordering New Axles???

71Demon340 said
I have a 71 A-body with the original 8 3/4 rear with the oddball 10" x 1 3/4" drums and SBP. I want to upgrade to LBP with Moser axles and the 10" x 2 1/2" drums. I am assuming that the axles will need to be longer since the brakes are wider. How do I specify the dimensions for the new axles. Do I just tell them exactly what set-up I have and they will know what axles I need. I don't see a way to mock-up everything and get accurate measurements. Any advice? Thanks.

Unless you must have the wider drum, you can have Moser redrill your axles and drums for the larger pattern. It`s definitely the cheapest method of getting the 4.5" bc. You can probably get all of that done and new bearings for cheaper than the price of new axles. The new axles/drums will push your wheel out further too sometimes resulting in tires scraping the fenderwell and the need for a possible rim swap with different backspacing.