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View Full Version : Rear end swap from Dana 35 to a Crysler 8.25 questions.



dagod16
06-06-2015, 01:09 PM
So I am swapping the Dana 35 to a Crysler 8.25 rear.

We are transferring the brakes over to the 8.25 and I guess my concern is.....

#1 Can anyone think of any snags we might have? Rusty parts, brake lines?, bolts?
#2 Should I buy a few parts just in case so I don't need them and not have them ahead of time?

#3 My Dana 35 must a have a bent frame. Mechanics have installed 3 bearings into it and they all go bad after a week. I'm not spending another dime on this rear end ever again. So I am getting the chrysler 8.25 Is this thing going to be reliable and not grind and grind.


I need all of your tips and advice.

Thanks

4.3LXJ
06-06-2015, 04:57 PM
IIRC, the brake backing plate will be different on the 8.25. You will need to use that backing plate minimum. The rest might change over

dagod16
06-06-2015, 05:40 PM
Can we transfer the back plate from the dana 35 over to the 8.25 then?

Carves
06-06-2015, 06:39 PM
Do you have a prop shaft / drive shaft for the 8.25 ??

I'd have to find it and measure it again ... but I'm sure the D35 shaft I have is longer than the 8.25 shaft.

Someone might know whether thats an issue or not.

dagod16
06-06-2015, 07:32 PM
I heard the shaft was the same size on both.


Keep going thou.

4.3LXJ
06-06-2015, 08:01 PM
As far as I know, they are

Carves
06-06-2015, 09:37 PM
Went and measured them both.

What I have is a 8.25 propshaft that is 1" shorter - than the D35 one out of my parts wreck.

I dunno whether the D35 propshaft extra length is an issue tho - after fitting a 8.25 diff housing - when the suspension flattens out and it pushes up into the slip yoke ??

4.3LXJ
06-06-2015, 09:44 PM
Yes, it pushes in

Carves
06-06-2015, 09:48 PM
Yes, it pushes in

Yeah I know that .. :o

but what I was wondering was ... is whether the extra inch would limit the travel amount inside the slip yoke,

i.e. flatten the suspension and bang the shaft hard up against slip yoke end, thereby transferring a pounding to the transfer case ??


sighhhh ... I'm probably just overthinking it ... :D

4.3LXJ
06-06-2015, 10:39 PM
No, not really. I don't really know if you can just use the 35 shaft. The other one is probably an inch shorter for a reason

dagod16
06-06-2015, 11:28 PM
I'm actually confused now. So can I use my dana 35 shaft?

Carves
06-07-2015, 03:52 AM
I'm actually confused now. So can I use my dana 35 shaft?

I'm thinking its probably not an issue in the short term ... maybe keep an eye out for a longer one at junkyards etc.

I'm sure others have used them - with no known issues ... but maybe their suspension lift heights have compensated for the length difference. ??


sorry for screwing with your head .. :o

dagod16
06-07-2015, 08:31 AM
I understand everything until you guys get mechanical hahahahah.

So I can use the dana 35 shaft on the 8.25 on a daily basis?

What other issues could I run into?