i am welding my 60 rear and plan to run 513 gears.

will 513 thick gears fit on the 410 carriers?

in the front i need to find a detroit that with hold 513 gears. they all call for 456 and up carriers. on 4wheelparts.com they only have 410 and down carriers... where can i order there items for reasonable prices from?

you need 5.13 "Thick" gears.

that way they will fit your 4.10 carrier

thats what i thought thank you. i found and ordered them after this was posted up... thanks alot

for the future what are good sites to order gears from.... i ordered from local vendor

You need to be carefull here. The front reverse 5.13 thicks WON'T fit on a 4.56 and numerically higher case. They are thick to work on a 4.10 and down carrier. What type Detroit are you getting(or do you have) for the front. If they are thin gears, they will fit the 4.56 and numerically higher case.

Also, the 5.13 standard gears for the rear will not fit the 4.10 and numerically down carrier it sounds like you may have that you are going to weld. I'm not aware that they make thick standard cut gears, so they will need to go on a 4.56 and numerically higher case.