Well if we are going to go that rought, this may get mein trouable but I'll be helping some one some where. This was a post I put up a year or so ago.
CK5 Blazer Forums
a little history lesson first in the 50s the Chelsea pto comany was born, then in late 60s they merged/got bought out by dana corpation, then in the mid to late 80s parker bought them up out of bankruptcy, and still own them to day. parts may or may not be avalible for repairs. so take care of what u have.
there is many different o-pen-yons on what will and will not inter change. in the past month i have been on a quest to find three pto for a np 203 t-case and have ran across many different postings. then started my own hunt for the truth. the ford, dodge, and chevy np-203, np-205, and sm-465 t-cases and trans r generally the same. there r a few diffences in the strough of some of the internal parts in the t-case but they all use the same tooth count gears over the years (example a 1972-1979, np203 will have the same tooth count gear no matter who the manufactuer of the truck was, same for the np-205 and sm-465) but they are NOT INTER CHANGHABLE!!! a pto for a sm465 will work on a np205 but the teeth do not fully or properly engage, and can cause or lead to gear or tooth failer. so here is what u will need to look for when looking for a power take off for your application. there is a mid gear stily and a direct drive gear. this info my only pertane to the mid gear stilys. rotar the mid gear around until u find a stamped part# on it. the older gears have a 5p*** on it in one spot only, if ur pto has been rebuilt at any point in the last 20 years by a parker chelsea pto, then it has had the mid gear replaced with there new part number gear which is easely looked up at ur local pto shop (it will be a four diget number, for example a rebuilt sm465 pto will have a 5359 stamped on the gear.) heres the info u will need to know for the future look up of ptos.
Quote:
Originally Posted by v30mongo
Download the applications catalog from Parker for Chelsea PTO's. Pick your model PTO and download the parts/instalation manual. It will list the parts breakdown and the input gears available for that PTO model. For instance: I used a Chelsea Model 352 reversable PTO installed on a NP205 transfer case. It required Chelsea #5P-1019 input gear to be installed in the PTO case. The direction of the output was selected to be towards the rear, but forwards was also possible. Most Chelsea PTO units can be made to fit most regular truck transmissions and transfer cases. The same is true for Muncy PTO's.
heres a link to the parker listings of ptos.
Chelsea Power Take Off PTO Units & Parts
this is for the more commen 442 style
if the inter medate gear is stamped with a
5P495 its for a np203
or if its stamped with a
5P449 its for a np205
or if its stamped with a
5P358 its for a sm465
for a 100 style or an "A" style
if its stamped with a
2P574 its for a np203
or if its stamped with a
2P575 its for a np205
replacement switch for the 100 is a part number 379639 price is $6.47replacement wiring harness for the 100 is a part number 379640 price is $5.42
reseal kit for the 100 is a part number 32835617x price is $22.56
ull also need this shaft seal witch is sold seperatly part number 28-p-226 price is $11.82 replacement shift arms r still avalible part number is 51-P22 price is $3.31
replacement shift cable hardware kit part number is 328380X price is $3.86
heres the company that u can get them threw, Grand Rapids Branch 3755 Linden S.E. Grand Rapids, MI 49548
Ph (616) 241-4695
Fax (616) 241-4394
heres where u can find out info about what chelsea pto u may have and will it work for what u want, the name of the company is S.L.E. 812 476 6154
first ones a 442 style, second is a 100 style, and third is an older "A" style
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