I currently have 3.07 gears in my 92 YJ, and I want ot change to 4.10.

I have been looking throught he catalouges and have found that I can get
a 4.10 R&P for the D30, but only a 4.09 for the D44. Am I just looking
in the wrong place? does the .01 difference matter?

It seems it would be cheaper to get a D30 out of a 4cyl then to get my
D30 regeared. I have seen some sites say that the D30 for a 4cyl is a
4.10 and other say it was a 4.10 which is it?

-Dan

 

Ratios within a few tenths are compatible with each other. 4.09, 4.10,
4.11 are all the same as far a you need be concerned.

Yes, swapping a D30 from a 4-banger can be cheaper, but be sure your
donor D30 has the same kind of knuckles, brakes, spring mounts, etc.
They do vary.

Steve

Dan wrote:
> I currently have 3.07 gears in my 92 YJ, and I want ot change to 4.10.
>
> I have been looking throught he catalouges and have found that I can get
> a 4.10 R&P for the D30, but only a 4.09 for the D44. Am I just looking
> in the wrong place? does the .01 difference matter?
>
> It seems it would be cheaper to get a D30 out of a 4cyl then to get my
> D30 regeared. I have seen some sites say that the D30 for a 4cyl is a
> 4.10 and other say it was a 4.10 which is it?
>
> -Dan

 

Ratios within a few tenths are compatible with each other. 4.09, 4.10,
4.11 are all the same as far a you need be concerned.

Yes, swapping a D30 from a 4-banger can be cheaper, but be sure your
donor D30 has the same kind of knuckles, brakes, spring mounts, etc.
They do vary.

Steve

Dan wrote:
> I currently have 3.07 gears in my 92 YJ, and I want ot change to 4.10.
>
> I have been looking throught he catalouges and have found that I can get
> a 4.10 R&P for the D30, but only a 4.09 for the D44. Am I just looking
> in the wrong place? does the .01 difference matter?
>
> It seems it would be cheaper to get a D30 out of a 4cyl then to get my
> D30 regeared. I have seen some sites say that the D30 for a 4cyl is a
> 4.10 and other say it was a 4.10 which is it?
>
> -Dan

 

Ratios within a few tenths are compatible with each other. 4.09, 4.10,
4.11 are all the same as far a you need be concerned.

Yes, swapping a D30 from a 4-banger can be cheaper, but be sure your
donor D30 has the same kind of knuckles, brakes, spring mounts, etc.
They do vary.

Steve

Dan wrote:
> I currently have 3.07 gears in my 92 YJ, and I want ot change to 4.10.
>
> I have been looking throught he catalouges and have found that I can get
> a 4.10 R&P for the D30, but only a 4.09 for the D44. Am I just looking
> in the wrong place? does the .01 difference matter?
>
> It seems it would be cheaper to get a D30 out of a 4cyl then to get my
> D30 regeared. I have seen some sites say that the D30 for a 4cyl is a
> 4.10 and other say it was a 4.10 which is it?
>
> -Dan

 

Ratios within a few tenths are compatible with each other. 4.09, 4.10,
4.11 are all the same as far a you need be concerned.

Yes, swapping a D30 from a 4-banger can be cheaper, but be sure your
donor D30 has the same kind of knuckles, brakes, spring mounts, etc.
They do vary.

Steve

Dan wrote:
> I currently have 3.07 gears in my 92 YJ, and I want ot change to 4.10.
>
> I have been looking throught he catalouges and have found that I can get
> a 4.10 R&P for the D30, but only a 4.09 for the D44. Am I just looking
> in the wrong place? does the .01 difference matter?
>
> It seems it would be cheaper to get a D30 out of a 4cyl then to get my
> D30 regeared. I have seen some sites say that the D30 for a 4cyl is a
> 4.10 and other say it was a 4.10 which is it?
>
> -Dan

 

Steve wrote:
> Ratios within a few tenths are compatible with each other. 4.09, 4.10,
> 4.11 are all the same as far a you need be concerned.
>
> Yes, swapping a D30 from a 4-banger can be cheaper, but be sure your
> donor D30 has the same kind of knuckles, brakes, spring mounts, etc.
> They do vary.

Weren't all the HP D30's from YJ's the same?

-Dan

 

Steve wrote:
> Ratios within a few tenths are compatible with each other. 4.09, 4.10,
> 4.11 are all the same as far a you need be concerned.
>
> Yes, swapping a D30 from a 4-banger can be cheaper, but be sure your
> donor D30 has the same kind of knuckles, brakes, spring mounts, etc.
> They do vary.

Weren't all the HP D30's from YJ's the same?

-Dan

 

Steve wrote:
> Ratios within a few tenths are compatible with each other. 4.09, 4.10,
> 4.11 are all the same as far a you need be concerned.
>
> Yes, swapping a D30 from a 4-banger can be cheaper, but be sure your
> donor D30 has the same kind of knuckles, brakes, spring mounts, etc.
> They do vary.

Weren't all the HP D30's from YJ's the same?

-Dan

 

Steve wrote:
> Ratios within a few tenths are compatible with each other. 4.09, 4.10,
> 4.11 are all the same as far a you need be concerned.
>
> Yes, swapping a D30 from a 4-banger can be cheaper, but be sure your
> donor D30 has the same kind of knuckles, brakes, spring mounts, etc.
> They do vary.

Weren't all the HP D30's from YJ's the same?

-Dan

 

Dan wrote:
> Steve wrote:
>
>> Ratios within a few tenths are compatible with each other. 4.09, 4.10,
>> 4.11 are all the same as far a you need be concerned.
>>
>> Yes, swapping a D30 from a 4-banger can be cheaper, but be sure your
>> donor D30 has the same kind of knuckles, brakes, spring mounts, etc.
>> They do vary.
>
>
> Weren't all the HP D30's from YJ's the same?
>
> -Dan

Perhaps, but I don't know.

I got an '86 XJ D30 donor to swap into my '90 XJ. It was easier for me
to set up the donor carrier in the '90 D30 than to deal with housing
differences.

Steve