3speed gears to 4speed tase question - Pirate4x4.Com : 4x4 and Off-Road Forum

t wrecks · 05-18-2002, 08:15 AM

I just put the 3speed idler gear and shaft in the 4speed t-case. There is 0.015" of slop between the case and brass spacer, is this acceptable?

Any other advise on this procedure is appreciated.

Lord Baskerville · 05-18-2002, 10:42 AM

Per Factory Manual...

Limit is .0187"
Standard is .0049 - .0187"

Cory

t wrecks · 05-18-2002, 05:48 PM

My factory manuel says the limit is 0.015". I am usally not this anal about conforming to factory specs but Ive heard that when doing this gear swap you need to add spacers to the idler gear because the 3speed case is narower then the 4speed case. When I put mine together I had only the 0.015" gap and I wasnt sure if this is the space that I am supposed to eliminate. Guess I should put away the feeler gauges open a beer and put the fawk'n thing together.

Thanks

Lord Baskerville · 05-19-2002, 07:28 AM

When I did this swap,
I had to re-shim the idler to reduce this clearance.

Cory

I think I had .02XX" before the shim change.....

t wrecks · 05-20-2002, 04:33 PM

I went ahead and ordered the next thickness up spacer from toyota to reduce the clearance to .010". It was only $3 and Im not in a rush.

How did your conversion turn out? Any gear whine?

Lord Baskerville · 05-20-2002, 05:02 PM

No gear whine yet....
Hope to actually put the system in the truck this weekend

Cory

t wrecks · 05-20-2002, 05:20 PM

Well if it starts to whine, setting it in the corner for awhile should quiet it down. Works for my kids.

05-18-2002, 08:15 AM	#1 (permalink)
t wrecks 101 Join Date: Feb 2000 Member # 114 Location: Reno,NV Posts: 430	3speed gears to 4speed tase question I just put the 3speed idler gear and shaft in the 4speed t-case. There is 0.015" of slop between the case and brass spacer, is this acceptable? Any other advise on this procedure is appreciated. __________________ Dead chicks are hot.

05-18-2002, 10:42 AM	#2 (permalink)
Lord Baskerville Registered User Join Date: Apr 2000 Member # 582 Location: Rosendale, WI, USA Posts: 679	Per Factory Manual... Limit is .0187" Standard is .0049 - .0187" Cory __________________ FJ-40 HP 2F SM420, 4:88, Locked F&R, 98" WB, Sawsalled, Welded, dented, 36" SX's, 3spd gears in a 4 spd case, Newfields, Lots of other mods all done by Me... Towed to the trail with a 97 Crew cab 4X4 PSD (slightly improved)

05-18-2002, 05:48 PM	#3 (permalink)
t wrecks 101 Join Date: Feb 2000 Member # 114 Location: Reno,NV Posts: 430	My factory manuel says the limit is 0.015". I am usally not this anal about conforming to factory specs but Ive heard that when doing this gear swap you need to add spacers to the idler gear because the 3speed case is narower then the 4speed case. When I put mine together I had only the 0.015" gap and I wasnt sure if this is the space that I am supposed to eliminate. Guess I should put away the feeler gauges open a beer and put the fawk'n thing together. Thanks __________________ Dead chicks are hot.

05-19-2002, 07:28 AM	#4 (permalink)
Lord Baskerville Registered User Join Date: Apr 2000 Member # 582 Location: Rosendale, WI, USA Posts: 679	When I did this swap, I had to re-shim the idler to reduce this clearance. Cory I think I had .02XX" before the shim change..... __________________ FJ-40 HP 2F SM420, 4:88, Locked F&R, 98" WB, Sawsalled, Welded, dented, 36" SX's, 3spd gears in a 4 spd case, Newfields, Lots of other mods all done by Me... Towed to the trail with a 97 Crew cab 4X4 PSD (slightly improved)

05-20-2002, 04:33 PM	#5 (permalink)
t wrecks 101 Join Date: Feb 2000 Member # 114 Location: Reno,NV Posts: 430	I went ahead and ordered the next thickness up spacer from toyota to reduce the clearance to .010". It was only $3 and Im not in a rush. How did your conversion turn out? Any gear whine? __________________ Dead chicks are hot.

05-20-2002, 05:02 PM	#6 (permalink)
Lord Baskerville Registered User Join Date: Apr 2000 Member # 582 Location: Rosendale, WI, USA Posts: 679	No gear whine yet.... Hope to actually put the system in the truck this weekend Cory __________________ FJ-40 HP 2F SM420, 4:88, Locked F&R, 98" WB, Sawsalled, Welded, dented, 36" SX's, 3spd gears in a 4 spd case, Newfields, Lots of other mods all done by Me... Towed to the trail with a 97 Crew cab 4X4 PSD (slightly improved)

05-20-2002, 05:20 PM	#7 (permalink)
t wrecks 101 Join Date: Feb 2000 Member # 114 Location: Reno,NV Posts: 430	Well if it starts to whine, setting it in the corner for awhile should quiet it down. Works for my kids. __________________ Dead chicks are hot.

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